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Cisco IOS Software Releases 12.0 S

Cross-Platform Release Notes for Cisco IOS Release 12.0S, Part 2: New Features and Important Notes

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New and Changed Information

Table Of Contents

New and Changed Information

New Hardware Features in Cisco IOS Release 12.0(33)S3

New Software Features in Cisco IOS 12.0(33)S3

BGP Support for 4-Byte ASN

New Hardware Features in Cisco IOS Release 12.0(33)S2

New Software Features in Cisco IOS 12.0(33)S2

Flow-control CLI

IPHC Over Frame Relay for Interface Support

New Hardware Features in Cisco IOS Release 12.0(33)S1

Shared Port Adapters (SPAs) and SPA Interface Processors (SIPS) for the Cisco 12000 Series

Enhanced Fabric for Cisco 12000 Series

New Software Features in Cisco IOS 12.0(33)S1

Access Control List Enhancements

BFD Version 1 Support

CBQoS MIB support for Control Plane Policing

Cisco IOS Flexible Netflow

Color-Aware Policer

Field-Programmable Devices Feature Command Enhancement

H-VPLS with MPLS Edge

IPv6 over Frame Relay

L2TPv3 Protocol Demultiplexing for IPv6 over HDLC

L2TPv3 Protocol Demultiplexing for IPv6 over PPP

L2VPN PW Conditional Debugging

Link bundling enhancements

MPLS Traffic Engineering: BFD-Trigerred Fast Reroute Feature

New Hardware Features in Cisco IOS Release 12.0(33)S

NPE-G2 Network Processing Engine

New Software Features in Cisco IOS 12.0(33)S

BFD Version 1 Support

Implementing IPv6 over Frame Relay

L2TPv3 Protocol Demultiplexing for IPv6 over HDLC

L2TPv3 Protocol Demultiplexing for IPv6 over PPP

MPLS OAM Tools

MPLS Traffic Engineering: BFD-Triggered Fast Reroute Feature

New Hardware Features in Cisco IOS Release 12.0(32)S12

New Software Features in Cisco IOS Release 12.0(32)S12

BGP Support for 4-Byte ASN

New Hardware and Software Features in Cisco IOS Release 12.0(32)S3 to Cisco IOS Release 12.0(32)S10

New Hardware Features in Cisco IOS Release 12.0(32)S2

New Software Features in Cisco IOS Release 12.0(32)S2

Remark Precedence Feature

Selective MVRF Download

New Hardware Features in Cisco IOS Release 12.0(32)S1

New Software Features in Cisco IOS Release 12.0(32)S1

ATM CBR and VBR-rt Support

New Hardware Features in Cisco IOS Release 12.0(32)S

1-Port Enhanced ATM Port Adapter with Support for 8000 VCs

CWDM Pluggable Optics Support for the Cisco 12000 Series

Shared Port Adapters (SPAs) and SPA Interface Processors (SIPS) for the Cisco 12000 Series

New Software Features in Cisco IOS Release 12.0(32)S

ACL IP Options Selective Drop

Any Transport over MPLS (AToM)

AutoInstall Support on Dual Mode IEEE 802.17 RPR/SRP Uplink Cards

Bidirectional Forwarding Detection

Cisco 7200 Series Routers Boot Images Information

Configuring 8 Queues per Interface on the 1-port Channelized OC12/STM-1 to DS1/E1 Line Card

Control Plane Policing (CPP)

DHCP-PD/DHCPv6

Frame Relay Support on Engine 5 Line Cards

High Priority Traffic Jitter Improvement for Cisco 12000 Series Router, Cisco 12000 SIP-400, Shared Port Adapters

IP Receive ACL

IPv6 QoS Enhancements for 12000 Series Router, ISE Line Cards, and SPAs

L2/L3 QoS Computations for Cisco 12000 Series Router Engine 5 Line Cards

L2VPN Interworking Features

Link Bundling on Cisco 12000 Series Routers

Link Fragmentation and Interleaving for Multilink PPP

MPLS VPN over IP Tunnels

Multicast Egress QoS Support on Cisco 12000 Series Router ISE SPAs

Multilink Frame Relay and Multilink PPP Support on Channelized SPAs on Engine 5 Line Cards

Multilink Frame Relay over L2TPv3/AToM

OSPF RFC 3623 Graceful Restart

Output Aggregate NetFlow

Power Management

Protocol-Independent MAC ACL Filtering

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet Services

QoS: CBQoS MIB Index Enhancements

QoS Ingress Hierarchical Policing for Cisco 12000 Series Router Line Cards

Tofab QoS Queues per Egress ISE SPA or ISE Line Card on Cisco 12000 Series Routers

Unified QoS-Locally Generated Packet Prioritization on Cisco 12000 Series Router ISE Line Cards

Virtual Private LAN Service over IP or MPLS on Cisco 12000 Series Router Line Cards

New Hardware and Software Features in Cisco IOS Release 12.0(31)S4 to Cisco IOS Release 12.0(31)S4

New Hardware Features in Cisco IOS Release 12.0(31)S3

New Software Features in Cisco IOS Release 12.0(31)S3

Component Outage On-Line (COOL) Measurement

IPv6 Provider Edge Router over MPLS (Cisco 6PE) Enhancement

New Hardware Features in Cisco IOS Release 12.0(31)S2

1-Port Channelized OC-3/STM-1 Engine 5 SPA

New Software Features in Cisco IOS Release 12.0(31)S2

New Hardware Features in Cisco IOS Release 12.0(31)S1

New Software Features in Cisco IOS Release 12.0(31)S1

BGP Multipath Loadsharing for MPLS VPN over IP Tunnels for Cisco 12000 Series Engine 5 Line Cards

Hierarchical Traffic Shaping for MPLS VPN over IP Tunnels

New Hardware Features in Cisco IOS Release 12.0(31)S

Cisco 12810 and Cisco 12816 Internet Routers

Shared Port Adapters (SPAs) and SPA Interface Processors (SIPS) for the Cisco 12000 Series

New Software Features in Cisco IOS Release 12.0(31)S

ATM CBR and VBR-rt Support

AToM Support on 2-Port and 4-Port Clear Channel T3/E3 SPAs

AToM Support on 2.5G ISE 2/4-Port Channelized T3/E3 SPAs

AToM VC Independence

BGP Route-Map Continue Support for Outbound Policy

Bidirectional Forwarding Detection (BFD) Standard Implementation

Building Integrated Timing Source (BITS)

Exclusive Configuration Change Access and Access Session Locking

IMA Dynamic Bandwidth

Inter-AS 10B Hybrid for MPLS VPN over IP Tunnels

IP Receive ACL

IPv6 Multicast PxF Acceleration

L2VPN Pseudowire Redundancy

L2VPN Pseudowire Switching

L2TPv3 Native Tunneling on 4-port GE ISE Line Cards

Layer 2 VPN (L2VPN): Syslog, SNMP Trap, and show Command Enhancements for AToM and L2TPv3

MPLS VPN Carrier Supporting Carrier over IP Tunnels

Native L2TPv3 Tunneling and MPLS VPN over IP Tunnels on Channelized E3 and T3 Shared Port Adaptors

Native L2TPv3 Tunneling and MPLS VPN over IP Tunnels on Clear Channel E3 and T3 Shared Port Adaptors

Power Management

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet and Frame Relay Services

QoS: Partial Support for Ingress Hierarchical Policing for the Cisco 12000 4-Port GE Line Card

Reverse Path Forwarding—Source Exists Only

Single Router APS

Unicast Reverse Path Forwarding for IPv6

New Hardware and Software Features in Cisco IOS Release 12.0(30)S1 to Cisco IOS Release 12.0(30)S5

New Hardware Features in Cisco IOS Release 12.0(30)S

1-Port Packet over SONET OC3c/STM1 Port Adapter

Performance Route Processor 2 Enhancements

New Software Features in Cisco IOS Release 12.0(30)S

Any Transport over MPLS (AToM) Sequencing Support

ATM VC Class Support

Any Transport over MPLS (AToM): Layer 2 QoS (Quality of Service)

AToM: Remote Ethernet Port Shutdown

Back-to-Back VRF Support for MPLS-VPNs over IP Tunnels

Distributed Control Plane Policing

Disabling the RP Layer 3 Cache

IEEE 802.17 RPR Enhancements

Inter-AS Support for Multicast VPN

L2TPv3 Digest Secret Graceful Switchover

Layer 2 Local Switching

L2VPN Interworking

Link Protection for GE Interface

Loopback Mode Detection Through OAM

Maximum Mask Aggregate Output NetFlow

MPLS CoS Transparency Explicit Null Enhancements

MPLS Label Distribution MIB: MPLS LDP Trap Enhancement

MPLS LDP Autoconfiguration

MPLS LDP IGP Synchronization

MPLS LDP Session Protection

MPLS Traffic Engineering (TE)—Fast Tunnel Interface Down Detection

MPLS Traffic Engineering (TE)—Path Protection

MPLS VPN-MIB Support: MPLS VPN Trap Enhancement

MPLS VPNs over IP Tunnels

Multilink Frame Relay (FRF.16.1)

Multi Router APS on ISE ATM Line Cards

Native L2TPv3 Tunneling

OAM Segment Endpoint

On-Board Failure Logging

OSPF Sham-Link MIB Support

PIM RPF Vector

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet and Frame Relay Services

PXF Accelerated IPv6 Quality of Service

QoS: Match ATM OAM

QoS: ATM CLP Queue-Limit

SNMP over IPv6

VLAN ID Rewrite

New Hardware and Software Features in Cisco IOS Release 12.0(29)S1

New Hardware Features in Cisco IOS Release 12.0(29)S

Dual-Mode IEEE 802.17 RPR/SRP Uplink Module

New Software Features in Cisco IOS Release 12.0(29)S

Any Transport over MPLS (AToM) Sequencing Support

ATM Cell Packing over L2TPv3

ATM Port Mode Cell Relay over L2TPv3

ATM PVC Bundle Enhancement - MPLS-EXP Based PVC Selection

AToM Graceful Restart

BGP Multicast IAS VPN

BGP Support for Fast Peering Session Deactivation

BGP Support for IP Prefix Import from Global Table into a VRF Table

BGP Support for Next-Hop Address Tracking

Control Plane Policing

EIGRP Prefix Limit Support

IEEE 802.17 RPR

Enabling OSPFv2 on an Interface Using the ip ospf area Command

IS-IS Support for an IS-IS Instance per VRF for IP

L2TPv3 Control Message Hashing

L2TPv3 Control Message Rate Limiting

MPLS LDP Graceful Restart

MPLS Traffic Engineering - AutoTunnel Mesh Groups

MPLS Traffic Engineering - Class-Based Tunnel Selection

MPLS Traffic Engineering - Inter-AS TE

MPLS Traffic Engineering - RSVP Graceful Restart

MPLS Traffic Engineering - RSVP Hello State Timer

MPLS Traffic Engineering: Shared Risk Link Groups (SRLG)

MPLS VPN - Loadbalancing Support for Inter-AS and CSC VPNs

Multicast Fast Switching Performance Improvement

Multicast VPN MIB

N*DS0 BERT Support on PA-MC-8TE1+

Protocol Demultiplexing for L2TPv3

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet Services

Random Sampled NetFlow

New Hardware and Software Features in Cisco IOS Release 12.0(28)S1 to Cisco IOS Release 12.0(28)S6

New Hardware Features in Cisco IOS Release 12.0(28)S

NPE-G1

New Software Features in Cisco IOS Release 12.0(28)S

ATM AAL5 over L2TPv3

ATM Conditional Debug Support

ATM OAM AIS-RDI Monitoring

ATM VC Bundles to MPLS VRF

ATM VC Single Cell Relay over L2TPv3

AToM VC Mode Single Cell Relay Support for PA-A3-OC12 PA

CNS Interactive CLI

Distributed ATM OAM Support (dOAM)

Frame Relay Scalability Conditional Debug Support

FRF.1.2 Annex A support

Hardware CEF Resiliency on Cisco 12000 Series Engine 2 and ISE Line Cards

IPv6 BSR

L2TPv3 Distributed Sequencing

L2TPv3 Support for PA-A3-8T1IMA PA and PA-A3-8E1IMA Port Adapters

Layer 2 Protocol Tunneling

Low Latency Queueing with Priority Percentage Support

MPLS COS Multi-VC Mode

MPLS Traffic Engineering: Shared Risk Link Groups (SRLG)

MPLS VPNs over IP Tunnels

Multilink Frame Relay over L2TPv3/AToM

Multilink Frame Relay Stateful Switchover

Packet Classification Using the Frame Relay DLCI Number

PIM Dense Mode Fallback Prevention in a Network Following RP Information Loss

Policy Based Routing: Recursive Next Hop

Port Mode Cell Relay Support

PPP/MLP MRRU Negotiation Configuration

Quality of Service (QoS) Features

Scalability Enhancements on Cisco 12000 Series 4-Port ATM ISE Line Cards

Stacked VLAN Processing

Transparent Layer 2 Protocol Tunneling and Layer 2 PDU Filtering

Upgrade Secondary ROMmon CLI

VP/VC Mode Packed Cell Relay Support

New Hardware and Software Features in Cisco IOS Release 12.0(27)S1 to Cisco IOS Release 12.0(27)S5

New Hardware Features in Cisco IOS Release 12.0(27)S

1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card

2-Port OC-192c/STM-64 Packet over SONET Line Card

2-Port Packet over SONET OC3c/STM1 Port Adapter

4-Port OC-3/STM-1 ATM ISE Line Card

8-port OC-48c/STM-16 Packet over SONET Line Card

Cisco 12000 Series Routers Upgradeable Fabric

New Software Features in Cisco IOS Release 12.0(27)S

ATM Cell Relay, Cell Packing over MPLS

ATM Port Mode Packed Cell Relay over MPLS

ATM VP Shaping, NNI, and Port Mode Cell Packing for Cisco 12000 Series Routers

BGP Cost Community Support for EIGRP MPLS VPN PE-CE with Backdoor Links

BGP Support for Dual AS Configuration for Network AS Migrations

Bridging Support for FE ports on the Cisco 10720 4GE+8FE module

BGP Support for TTL Security Check

Binding L2TPv3 Sessions to MLFR Interfaces on E0 Line Cards

DiffServ Compliant Weighted Random Early Detection

Dynamic Time Slot Configuration

EBGP Label Distribution

EIGRP MPLS VPN PE-CE Site of Origin (SoO)

Enhanced RED Statistics

Fast-Flooding IS-IS LSPs Using the fast-flood Command

Frame Relay over L2TPv3 QoS on E0 Line Cards

Integrated IS-IS Global Default Metric

Integrated IS-IS Protocol Shutdown Support Maintaining Configuration Parameters

IPv6 Multicast on Cisco 12000 Series Line Cards

IPv6 Provider Edge Router over MPLS (Cisco 6PE) Enhancement

IS-IS Local RIB Support for Redistributed Routes

Layer 2 Local Switching—ATM to ATM

Layer 2 Local Switching—ATM to Ethernet

Layer 2 Local Switching—ATM to Frame Relay

Layer 2 Local Switching—Frame Relay to Frame Relay

L2TPv3 Distributed Sequencing

MB RP Memory Support for Cisco 10720 Internet Router

MPLS Embedded Management—LSP Ping/Traceroute and AToM VCCV

MPLS Traffic Engineering Autotunnel

MPLS Traffic Engineering Autotunnel Mesh Groups

MPLS VPN—eBGP Multipath Support for CSC and InterAS MPLS VPNs

MPLS VPN—Explicit Null Label Support with BGP IPv4 Label Session

MPLS VPN—VPN Aware LDP MIB

MSDP Compliance with IETF RFC 3618

Multicast Heartbeat

Multicast State Enhancements for Engine 2 and Engine 3 Line Cards on the Cisco 12000 Series

Multicast-VPN: Multicast Support for MPLS VPN

Online Offline Diagnostics (OOD)—Field Diagnostics

OSPF per-Interface Link-Local Signaling (LLS)

OSPF Link State Database Overload Protection

OSPF Support for Unlimited Software VRFs per Provider Edge (PE) Router

Percent-Based Policing

Policy Map Scaling

RED with Queue Limit

RFC 2495/96 Support for DS1-MIB/DS3-MIB

Router Security Audit Logs

SNMP over IPv6

Source Specific Multicast (SSM)—Mapping

SRP—Layer 3 Fast Notification

Three-Level Policy Maps

Unique Device Identifier (UDI)

VC Oversubscription

New Hardware and Software Features in Cisco IOS Release 12.0(26)S1 to Cisco IOS Release 12.0(26)S6

New Hardware Features in Cisco IOS Release 12.0(26)S

New Software Features in Cisco IOS Release 12.0(26)S

Any Transport over MPLS

ATM PVC Bundle Enhancement—MPLS EXP-Based PVC Selection

APS Stateful Switchover

ATM PVC F5 OAM Recovery Traps

BECN and FECN Marking for Frame Relay over MPLS

Byte-Based Weighted Random Early Detection

Cisco 10720—New Features

Cisco 12000 Series 4-Port OC-12c/STM-4c DPT ISE Line Card Enhancements

Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card Enhancements

Cisco 12000 Series ISE and E4+ Line Card MQC Enhancements

CISCO-ATM-EXT-MIB

Class-Based Marking

Class-Based Policing

Class-Based Shaping

Class-Based Weighted Fair Queueing and Weighted Random Early Detection

CNS Config Notify

CPU Threshold Notification

Digital-link Subrate Scramble for Cisco 12000 Series 6-Port E3 and 12-Port E3 Line Cards

Embedded Event Manager 1.0

Enhanced SNMP for Stateful Switchover

Ethernet VLAN Interworking

Ethernet VLAN to ATM AAL5 Interworking

Ethernet VLAN to Frame Relay Interworking

Frame Relay PVC Bundles with QoS Support for IP and MPLS

Frame Relay to ATM AAL5 Interworking

Frame Relay to PPP Interworking

Image Verification

Integrated IS-IS Multitopology Support for IPv6

IP Source Tracker

IPMROUTE-STD-MIB

IPv6 Multicast on Cisco 12000 Series Routers

IS-IS Local RIB Support for Faster IP Prefix RIB Installation

Link Bundling on Cisco 12000 Series Internet Routers

Logging to Local Non-Volatile Storage (ATA Disk)

Low Latency Queueing

Modular Quality of Service Command-Line Interface

MPLS—Aware NetFlow

MPLS—LDP Inbound Label Binding Filtering

MPLS—VRF Aware Static Labels

MPLS Fast Reroute Link Protection

MPLS Traffic Engineering Fast Reroute—Link Protection

MPLS Traffic Engineering—Fast Reroute MIB

MPLS Traffic Engineering LSP Attributes

MPLS Traffic Engineering—Verbatim Path Support

MPLS Virtual Private Networks (VPNs)

MPLS VPN—Route Target Rewrite

MPLS VPN—VRF Selection based on Source IP Address

Multicast-VPN—IP Multicast Support for MPLS VPNs

Multirouter Automatic Protection Switching (APS)

NetFlow BGP Next Hop Support

Optical Power Monitor on Cisco 12000 Series ISE and Engine 4 DPT Line Cards

OSPF MIB Support of RFC 1850 and Latest Extensions

Output Sampled Netflow

Packet Classification Using the Frame Relay DLCI Number

Policer Enhancement: Multiple Actions

PVC Bundle Selection over ATM and FR

QoS: Color-Aware Policer

Quality of Service on Aggregate VLAN Traffic

Random Sampled NetFlow

Regex Engine Performance Enhancement

RSVP Message Authentication

RSVP Refresh Reduction and Reliable Messaging

Sampled NetFlow

Service Assurance Agent (SAA) MPLS VPN Operation

SNMP—IP Precedence and DSCP Support

Source Specific Multicast (SSM) - Mapping

Two-Rate Policer

New Hardware and Software Features in Cisco IOS Release 12.0(25)S1 to Cisco IOS Release 12.0(25)S4

New Hardware Features in Cisco IOS Release 12.0(25)S

4-Port Gigabit Ethernet ISE Line Card

4-Port OC-12c/STM-4c ATM ISE Line Card

New Software Features in Cisco IOS Release 12.0(25)S

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS

Any Transport over MPLS (AToM): Distributed Mode for Frame Relay, PPP, and HDLC over MPLS

Any Transport over MPLS (AToM): Ethernet over MPLS: Port Mode

Any Transport over MPLS (AToM): Tunnel Selection

Cisco 12000 Series 4-Port OC-12c/STM-4c DPT ISE Line Card Enhancements

Distributed Frame Relay Switching

Ethernet MDI/MDI-X Support on the Cisco 10720

IPv6 Hardware-Assisted Enhancements on Cisco 12000 IP Services Engine (ISE) Line Cards

IS-IS Limit on Number of Redistributed Routes

Layer 2 Tunnel Protocol Version 3 on Cisco 12000 Series 1-Port Channelized OC-12 (DS3) Line Cards

Link Fragmentation and Interleaving

MQC Bandwidth in Absolute Values on the Cisco 10720

MPLS Quality of Service Enhancements on Cisco 12000 Series Engine 2 Line Cards

Multicast-VPN—IP Multicast Support for MPLS VPNs

OSPF Limit on Number of Redistributed Routes

OSPF Link-State Advertisement (LSA) Throttling

Single Rate 3-Color Marker for Traffic Policing

New Hardware and Software Features in Cisco IOS Release 12.0(24)S1 to Cisco IOS Release 12.0(24)S6

New Hardware Features in Cisco IOS Release 12.0(24)S

4-Port OC-12c/STM-4c DPT ISE Line Card

New Software Features in Cisco IOS Release 12.0(24)S

ATM OAM Support for F5 Continuity Check

BGP Configuration Using Peer Templates

BGP Cost Community

BGP Dynamic Update Peer-Groups

BGP Link Bandwidth

BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN

BGP Route-map Continue

Cisco 12000 Series Engine 4 Plus DPT Line Card Enhancements

Cisco 12000 Series IP Services Engine (ISE) Line Card Enhancements

CISCO-APS-EXT-MIB

Cisco ATM QoS MIB

CISCO-ENHANCED-WRED-MIB Support for Cisco 12000 Series Internet Routers

Cisco Extension to the Interfaces MIB (CISCO-IF-EXTENTION-MIB)

CISCO-FABRIC-C12K-MIB

Cisco Nonstop Forwarding with Stateful Switchover on Cisco 12000 Series Line Cards

CISCO-PSA-MICROCODE-MIB

Class-Based QoS MIB for the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

Distributed Link Fragmentation and Interleaving over Leased Lines

Distributed Multilink Frame Relay

Hierarchical Policy Map

IP Receive ACL

IP Version 6 on the Cisco 10720 Internet Router

IPv6 Provider Edge Router over MPLS (Cisco 6PE) on the Cisco 10720 Internet Router

IS-IS Incremental SPF

L2TPv3 Enhancements on the Cisco 10720 Internet Router

L2TPv3 Enhancements on the Cisco 12000 Series Internet Router

Layer 2 Tunnel Protocol Version 3 Fragmentation

Leased Line SNMP MIB Enhancements

Microcode Bundle Manager on Cisco 12000 Series Engine 2 Line Cards

MPLS COS Transparency on Cisco 12000 E4+ DPT Line Cards

MPLS LDP MIB Version 8 Upgrade

MPLS Traffic Engineering Fast Reroute on the Cisco 10720 Internet Router

MPLS VPN—Carrier Supporting Carrier on the Cisco 10720 Internet Router

MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution

MPLS VPN—Inter-AS—IPv4 BGP Label Distribution

MPLS VPN—Interautonomous System Support

MPLS-aware NetFlow

MQC Enhancements on the Cisco 10720 Internet Router

OSPF Forwarding Adjacency

OSPF Incremental SPF

OSPF Route Map-Based Filtering

OSPF for IPv6

Output Sampled NetFlow on IP Services Engine (ISE) Line Cards

Periodic MIB Data Collection and Transfer Mechanism

QA Error Recovery for the Cisco 7500

RSVP Refresh Reduction and Reliable Messaging

Support for SONET Notifications in CISCO-SONET-MIB

New Hardware and Software Features in Cisco IOS Release 12.0(23)S1 to Cisco IOS Release 12.0(23)S6

New Hardware Features in Cisco IOS Release 12.0(23)S

1-Port 10-Gigabit Ethernet Line Card

2-Port OC-48c/STM-16c POS/DPT Uplink Card and Versatile Optical Interface

4OC-48c/STM-16c DPT Line Card

8-Port Fast Ethernet Half-Height Line Card

Gigabit Ethernet Half-Height Line Card

Modular Gigabit Ethernet Line Card

OC-192c/STM-64c DPT Line Card

New Software Features in Cisco IOS Release 12.0(23)S

3-Port Gigabit Ethernet Line Card Enhancements

Unicast Reverse Path Forwarding Bundled in Sampled NetFlow Microcode on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

8-Port OC-3/STM-1 ATM Line Card Enhancements

Any Transport over MPLS

ATM OAM Traffic Reduction

Cisco Nonstop Forwarding with Stateful Switchover on the Cisco 12000 Series Performance Route Processor and the Cisco 12000 Series 1-Port and 3-Port Gigabit Ethernet Line Cards

Dynamic Layer-3 VPNs (L3VPNs) (RFC-2547 based) with Multipoint GRE (mGRE) Tunnel Support

Fast EtherChannel and Gigabit EtherChannel on the Cisco 10720 Router

Generic Routing Encapsulation (GRE) Tunnel Keepalive

Globalized Channelizations

GRE Tunnel IP Source and Destination VRF Membership

IP Options Selective Drop

IP Services Engine Line Card Enhancements (2)

IPv6 Extended Access Control Lists

IPv6 on Additional Cisco 12000 Series Line Cards

Layer 2 Tunneling Protocol Version 3

Link Bundling

Manual IPv6 Tunnels

MPLS Enhancements to the Interfaces MIB

MPLS Static Labels

MPLS Traffic Engineering (TE) on the Cisco 10720 Router

MPLS VPN Carrier Supporting Carrier for Additional Cisco 12000 Series Line Cards

MPLS VPN Features for Additional Cisco 12000 Series Line Cards

MPLS VPN Interautonomous System on Additional Cisco 12000 Series Line Cards

MQC match cos Command

Multicast-VPN—IP Multicast Support for MPLS VPNs

OSPF Shortest Path First Throttling

OSPF Support for Fast Hellos

PFE MIB

Sampled NetFlow on the Cisco 10720 Internet Router

SNMP Support for VPNs

New Hardware and Software Features in Cisco IOS Release 12.0(22)S1 to Cisco IOS Release 12.0(22)S6

New Hardware Features in Cisco IOS Release 12.0(22)S

4-Port OC-3 ATM Line Card

6-Port OC-3/POS Line Card

8-Port OC-3/STM-1 ATM Line Card for Cisco 12000 Series Internet Routers

8-Port Unchannelized E3/T3 Line Card

10 Gbps POS Enhanced Services Line Cards

Cisco 24-Port Channelized E1/T1 Line Card

Cisco 10000 Series Edge Services Router

Cisco 10720 Console/Auxiliary Module

Cisco 10720 Internet Router

Combined 4-Port Gigabit Ethernet 8-Port 10/100 Ethernet TX Access Card

OC-3c/STM-1c POS/SDH ISE Line Cards

PA-MC-8TE1+ Port Adapter

RSP16

SONET APS 1+1 for 4-Port OC-3 ATM and 1-Port OC-12 ATM Line Cards

VIP6

New Software Features in Cisco IOS Release 12.0(22)S

3-Port Gigabit Ethernet Line Card MPLS-VPN Features

802.1p Support on the Cisco 10720 Internet Router

802.1q Support for the Cisco 10720 Internet Router

Any Transport over MPLS: ATM AAL5 over MPLS

Any Transport over MPLS: Ethernet over MPLS

ARP Optimization

ATM PVCs

AutoInstall in Cisco 10720 Internet Routers

Automatic Protection Switching on 2-Port Channelized OC-3/STM-1 (DS1/E1) Line Cards

Auto-Shutdown Feature Changes

BGP Conditional Route Injection

BGP Convergence Optimization

BGP Hybrid CLI

BGP Increased Support of Numbered AS-Path Access Lists to 500

BGP Next Hop Propagation

BGP Policy Accounting

BGP Prefix-Based Outbound Route Filtering

BGP Restart Session After Max-Prefix Limit

BGP Route-Map Policy List Support

Bidirectional PIM

Cisco 10000 ESR MIB Enhancements

Cisco 12000 Series Field Diagnostics

CISCO-APS-MIB

CISCO-ENHANCED-WRED-MIB

Cisco Nonstop Forwarding with Stateful Switchover

CISCO-OPTICAL-MONITORING-MIB

CNS Configuration Agent

CNS Event Agent

Core and Intake Critical Temperature Thresholds

Diff-Serv-Aware Traffic Engineering (DS-TE)

Diffserv Compliant WRED

DPT MIB

Explicit Null

facility-alarm Command

Fast Software Upgrade

Frame Relay Fast Restart

Generic Routing Encapsulation (GRE)

HSRP Support for MPLS VPNs

IP Event Dampening

IP Receive ACL

IP Source Tracker Supported on the 7500 Series Routers

IPv6

IS-IS HMAC-MD5 Authentication

IS-IS Mechanisms to Exclude Connected IP Prefixes from LSP Advertisements

Label-Controlled ATM Interface (LC-ATM)

Label Switch Routing

MPLS Egress NetFlow Accounting

MPLS Enhancements in the Cisco 10720 Internet Router

MPLS Label Distribution Protocol (LDP)

MPLS Label Switching Router MIB

MPLS Multiprotocol Label Switching

MPLS Quality of Service (QoS)

MPLS Scalability Enhancements for the LSC and ATM LSR

MPLS Support on Dynamic Packet Transport (DPT)

MPLS Traceroute

MPLS Traffic Engineering (TE)

Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN)

MPLS VPN Carrier Supporting Carrier

MPLS VPN Interautonomous System

Multicast Forwarding on IP Services Engine Line Cards

Multiplex Section Protection (MSP)

Multiprotocol BGP (MP-BGP)—MPLS VPN

Multi-VPN Routing and Forwarding Tables

NetFlow Accounting

Nested Policies

New and Enhanced PXF Commands

OSPF Sham-Link Support for MPLS VPN

OSPF Support for Multi-VRF on CE Routers

Parser Cache

Performance Route Processor

Per-Packet Load Balancing

PIM: Subsecond DR Failover

Policy-Based Routing

Post Switchover Core Dump

Privilege Command Enhancements

Reserve Memory for Console Access

Routing Table Improvements

Priority Queueing (PQ)/CBWFQ on ATM PVCs

Route Processor Redundancy

Single Ring Recovery (SRR) Protocol on the Cisco 10720 Internet Router

SNMP Notification Logging

SNMP Support for Class Based QoS on Cisco 12000 Series Line Cards

SNMP Version 3

SNMPv3 Community MIB Support

Subinterface Policy Maps

tunnel mpls traffic-eng autoroute announce Command

Turbo Quality of Service (QoS)

Unicast Reverse Path Forwarding Checking

Unicast Reverse Path Forwarding on Engine 4 Plus Line Cards

Unicast Reverse Path Forwarding on IP Services Engine (ISE) Line Cards

Virtual Router Redundancy Protocol (VRRP)

VPN-Aware DHCP Relay for Nonoverlapping Addresses

VPN-Aware PING MIB

VPN Routing/Forwarding (VRF) ARP Entry Support

VPN Routing/Forwarding (VRF) CLI Command

VPN Slow-Path Support on Engine 2 at Deaggregation Point (Between PE-P)

VRF over FR Subinterfaces

VT1.5 for Channelized OC-12 Card

New Hardware and Software Features in Cisco IOS Release 12.0(21)S1 to Cisco IOS Release 12.0(21)S8

New Hardware Features in Cisco IOS Release 12.0(21)S

1-Port OC-48/STM-16 IP Services Engine Line Cards

Cisco 12404 Internet Router

New Software Features in Cisco IOS Release 12.0(21)S

10-Port 1-Gigabit Ethernet Line Card Enhancements

ACL Table Optimization for Engine 2 Line Cards

ATM OAM Ping

BGP 4 MIB Support for per-Peer Received Routes

Bit Error Rate Testing for 4-Port Channelized OC-12/STM-4 Line Cards

Bit Error Rate Testing Enhancements for 6-Port Channelized T3 Line Cards

CISCO-ENHANCED-MEMORY-POOL-MIB

CISCO-ENTITY-FRU-CONTROL-MIB

CISCO-PROCESS-MIB Enhancement

CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB

Engine 4 POS Line Card Enhancements

GRE Tunneling

IF-MIB Enhancements

Individual SNMP Trap Support

IP Services Engine Line Card Enhancements (1)

IP Source Tracker

Multicast Forwarding in Cisco 12000 Series Internet Routers

Per-Packet Load Balancing on Engine 2 Line Cards

Sampled NetFlow and 128 ACLs on 3-Port Gigabit Ethernet Line Cards

Secure Copy

Single Ring Recovery Protocol

SNMP IF-MIB Support for VLAN (802.1Q) Subinterfaces

Universal Transport Interface on 2-Port Channelized E1/T1 and 6-Port Channelized T3 Line Cards

UTI VLAN

New Hardware and Software Features in Cisco IOS Release 12.0(19)S1 to Cisco IOS Release 12.0(19)S4

New Hardware Features in Cisco IOS Release 12.0(19)S

10-Port 1-Gigabit Ethernet Line Card for Cisco 12000 Series Internet Routers

IP Services Engine Line Cards for the Cisco 12000 Series Internet Routers

New Software Features in Cisco IOS Release 12.0(19)S

Explicit Tracking of Hosts, Groups, and Channels for IGMP Version 3

NetFlow Multiple Export Destinations

Unicast Reverse Path Forwarding on Engine 2 Line Cards

Universal Transport Interface on Frame Relay Point-to-Point Subinterfaces

New Hardware and Software Features in Cisco IOS Release 12.0(18)S1 to Cisco IOS Release 12.0(18)S7

New Hardware Features in Cisco IOS Release 12.0(18)S

New Software Features in Cisco IOS Release 12.0(18)S

Cisco IOS Event Tracer

Enhanced Password Security, Phase I

ip pim sparse-mode-register Command

Output ACLs on Engine 4 Line Cards

PIM Scalability Enhancement

Sampled NetFlow and 128 ACLs on Engine 2 POS Line Cards

show idb Command

SONET MIB

Universal Transport Interface

New Hardware and Software Features in Cisco IOS Release 12.0(17)S1 to Cisco IOS Release 12.0(17)S7

New Hardware Features in Cisco IOS Release 12.0(17)S

2xCHOC-3/STM1-DS1/E1 Line Card

Cisco 12406 Internet Router

New Software Features in Cisco IOS Release 12.0(17)S

64-Bit SNMP Counters

Bit Error Rate Testing for 2-Port Channelized OC-3/STM-1 Line Cards

clear context Command

Frame Relay Extended Addressing

Frame Relay Traffic Policing

MPLS Interface MIB Enhancements

MPLS Traffic Engineering MIB

MPLS Traffic Engineering MIB Traps

Multilink Frame Relay

Tunnel ToS

New Hardware and Software Features in Cisco IOS Release 12.0(16)S1 to Cisco IOS Release 12.0(16)S10

New Hardware Features in Cisco IOS Release 12.0(16)S

Cisco 12410 Internet Router

New Software Features in Cisco IOS Release 12.0(16)S

Distributed Traffic Shaping on POS Engine 2 Line Cards

Sampled NetFlow on 3-Port Gigabit Ethernet Line Cards

Single Ring Recovery Protocol

New Hardware and Software Features in Cisco IOS Release 12.0(15)S1 to Cisco IOS Release 12.0(15)S7

New Hardware Features in Cisco IOS Release 12.0(15)S

2-Port Fast Ethernet Port Adapter

6E3-SMB and 12E3-SMB Line Cards

Cisco 12416 Internet Router

OC-192c/STM-64c POS Line Card

Quad OC-48c/STM-16c POS Line Card

New Software Features in Cisco IOS Release 12.0(15)S

448 ACL Support on the 3-Port Gigabit Ethernet Line Card

Differentiated Services Compliant Distributed Weighted Random Early Detection

Enhanced EIGRP Stub Routing

Filtering Inter-Area Routes on an ABR

ICMP and PIRC Support on 3-Port Gigabit Ethernet Line Cards

IP QoS for 3-Port Gigabit Ethernet Line Cards

Modular Quality of Service Command-Line Interface

NetFlow ToS-Based Router Aggregation

OSPF Stub Router Advertisement

Source MAC Address Accounting on the 3-Port Gigabit Ethernet Line Card

Source Specific Multicast with IGMPv3

Unicast Reverse Path Forwarding Loose Mode

New Hardware and Software Features in Cisco IOS Release 12.0(14)S1 to Cisco IOS Release 12.0(14)S8

New Hardware Features in Cisco IOS Release 12.0(14)S

Cisco 7200-I/O-GE+E and Cisco 7200-I/O-2FE/E Input/Output Controllers

Multichannel STM-1 Port Adapter for the Cisco 7500 Series Router

NPE-400

PA-MC-2T3+ Phase-II (T3 Subrate)

New Software Features in Cisco IOS Release 12.0(14)S

Bit Error Rate Testing for 6-Port Channelized T3 Line Cards

BGP Policy Accounting on 3-Port Gigabit Ethernet Line Cards

Extended ACLs on PSA

FRF2.1 Annex 1

ICMP Rate Limiting on Engine 2 POS Line Cards

Inverse Multiplexing over ATM Enhancements

MPLS Traffic Engineering IP Explicit Address Exclusion

NetFlow Export Version 5

Sampled NetFlow on Engine 2 POS Line Cards

New Hardware and Software Features in Cisco IOS Release 12.0(13)S1 to Cisco IOS Release 12.0(13)S6

New Hardware Features in Cisco IOS Release 12.0(13)S

6-Port Channelized T3-SMB Line Card

Quad OC-12c/STM-4c ATM Line Card

New Software Features in Cisco IOS Release 12.0(13)S

BGP Policy Accounting on Cisco 12000 Series Engine 2 Line Cards

Cisco 7500 Single Line Card Reload

Class-Based Marking

Policy Routing on Internet Router Engine 0 and Engine 1

New Hardware and Software Features in Cisco IOS Release 12.0(12)S3 to Cisco IOS Release 12.0(12)S3

New Hardware Features in Cisco IOS Release 12.0(12)S

New Software Features in Cisco IOS Release 12.0(12)S

Class-Based Quality of Service MIB

Event MIB

Frame Relay Switching Diagnostics and Troubleshooting

Hot Standby Router Protocol MIB

Multicast Source Discovery Protocol MIB

Versatile Interface Processor-Based Distributed FRF.12

New Hardware and Software Features in Cisco IOS Release 12.0(11)S6

New Hardware Features in Cisco IOS Release 12.0(11)S

1OC-48/STM-16 SRP Line Card

3-Port Gigabit Ethernet Line Card

Multiport T1/E1 ATM Port Adapters with Inverse Multiplexing over ATM

PA-A3 OC-12 ATM Port Adapter

VIP-4

New Software Features in Cisco IOS Release 12.0(11)S

Distributed GRE Tunneling

Enhanced Gigabit Ethernet Interface Processor

Frame Relay Switching on Engine 2

ifIndex Persistence

Per Interface Rate Control

WCCP Enhancements

New Hardware and Software Features in Cisco IOS Release 12.0(10)S7 to Cisco IOS Release 12.0(10)S8

New Hardware Features in Cisco IOS Release 12.0(10)S

8xOC-3 POS or 16xOC-3 POS Line Card

Cisco Optical Regenerator

Route Switch Processor (RSP8)

New Software Features in Cisco IOS Release 12.0(10)S

2 x 32-Bit Counters

Access List Performance Improvements for Cisco 12000 Internet Routers

BGP Policy Accounting

Extended Ethernet Frame Size Support

MPLS over Frame Relay

Named Community Lists

Secure Shell Client Version 1

Section Data Communications Channel

SNMP Support for BGP Policy Accounting

Weighted Random Early Detection

Distributed Multilink Point-to-Point Protocol

Low Latency Queueing

New Revision of System Controller Chip for NPE-175/NPE-225

Router-ports Group Management Protocol (RGMP)

New Hardware and Software Features in Cisco IOS Release 12.0(8)S1

New Hardware Features in Cisco IOS Release 12.0(8)S

Cisco 12016 Internet Router

Enhanced Quad OC-12c/STM-4c Layer 3 Packet-over-SONET Line Card

New Software Features in Cisco IOS Release 12.0(8)S

APS Reflector Mode

Fast EtherChannel Support on the Cisco 7200 Platform

Multiprotocol Label Switching Traffic Engineering OSPF Support

Service Assurance Agent

Virtual Path Traffic Shaping

New Hardware Features by Cisco IOS Release 12.0(7)S

Enhanced OC-48c/STM-16c Layer 3 Packet-over-SONET Line Card

Gigabit Ethernet (PA-GE Support)

Two-Port Multichannel DS1/PRI and Multichannel E1/PRI Port Adapters

New Software Features in Cisco IOS Release 12.0(7)S

ATM CLP Setting

Distributed Traffic Shaping

IS-IS Over ISL

MPLS Switching Support for Gigabit Ethernet

NetFlow Support for Gigabit Ethernet

Per-VC Queueing

New Hardware Features in Cisco IOS Release 12.0(6)S

1OC-12/STM-4 SRP Line Card

6DS3-SMB Line Card

8-Port Fast Ethernet Line Card

NPE-175/NPE-225

OC-12c Dynamic Packet Transport Port Adapter

PA-MC-2T3+ Multichannel T3 Port Adapter

New Software Features in Cisco IOS Release 12.0(6)S

Memory Scan

NetFlow Policy Routing

NetFlow on Internet Routers

Process MIB

SNMP Version 3

Turbo Access Control Lists

New Hardware Features in Cisco IOS Release 12.0(5)S

Cisco 7576 Router

Gigabit Ethernet Interface Processor

Gigabit Ethernet Line Card

NPE-300

PA-MC-8E1/120, PA-MC-4T1, PA-MC-8T1, and PA-MC-8DSX1 Multichannel E1 and T1 ISDN PRI Port Adapters

PA-MC-E3 Multichannel E3 Synchronous Serial Port Adapter

PA-MC-T3 Multichannel T3 Port Adapter

New Software Features in Cisco IOS Release 12.0(5)S

ATM PVC Trap Support

Available Bit Rate Servicing and Virtual Path Shaping on PA-A3 Port Adapters

Command Line Interface String Search

Frame Relay Enhancements for K2 Scalability

GRP Redundant Processor Support

ISL Support

Multicast BGP

Multicast Distributed Switching

Multicast Routing Monitor

Multicast Source Discovery Protocol

Multiprotocol Label Switching Traffic Engineering

RFC 1483 Bridged PVC Encapsulation

Secure Shell Version 1

Tag Switching

MIBs

Limitations and Restrictions

Limitations That Apply to Cisco IOS Release 12.0(31)S

BITS limitations on a Cisco 12000 Series with 2.5-Gbps or 10-Gbps Switch Fabric

Field Diagnostics on a Cisco 12000 Series with 2.5-Gbps or 10-Gbps Switch Fabric

Limitations That Apply to Cisco IOS Release 12.0(30)S

PRP-2 Hard Drive

Limitations That Apply to Cisco IOS Release 12.0(28)S

match atm-clp and set atm-clp Commands in AToM VCs

Limitations That Apply to Cisco IOS Release 12.0(22)S

Controlling the Rate of Logging Messages on the Cisco 10000 Series Edge Services Router

Forwarding Memory on Cisco 12000 Series Engine 4 Line Cards

ip cef accounting per-prefix Command and Per-Packet Load Balancing

Nested Policy Feature

Testing Performance of High-Speed Interfaces on the Cisco 10000 Series Edge Services Router

Important Notes

Deferrals

Field Notices and Bulletins

Important Notes for Cisco IOS Release 12.0(33)S1

Cisco 12000 Series Routers Supported

Important Notes for Cisco IOS Release 12.0(33)S

Cisco 12000 Series Routers Not Supported

Cisco 7202, Cisco 7204, and Cisco 7206 Routers Not Supported

Important Notes for Cisco IOS Release 12.0(32)S

6PE Support for VLANS

Important Notes for Cisco IOS Release 12.0(31)S

Cisco 12000 Flash Memory

Field Programmable Device Upgrade Tool for the Cisco 12000 Series

Maximum Number of Egress QoS Policies Supported on a Cisco 12000 Series 4-Port Gigabit Ethernet ISE Line Card

Important Notes for Cisco IOS Release 12.0(28)S

Upgrading the Gold ROM Monitor Image for the Cisco 10720

Important Notes for Cisco IOS Release 12.0(27)S

Available Free Memory for Cisco 12000 Series Line Cards and Route Processors

Required Memory for Cisco 12000 Series Line Cards

Important Notes for Cisco IOS Release 12.0(26)S

ROMMON Upgrades for Cisco 12000 Series Line Cards

Important Notes for Cisco IOS Release 12.0(24)S

QA Error Recovery for the Cisco 7500 Feature Not Enabled By Default in Cisco IOS Release 12.0(24)S

Important Notes for Cisco IOS Release 12.0(23)S

Configuring MD5 Authentication for BGP Peering Sessions

Important Notes for Cisco IOS Release 12.0(22)S3

Cisco 7200 Series and Cisco 7000/7500 RSP Series Images Deferred

Important Notes for Cisco IOS Release 12.0(22)S

Change in Behavior of the Wrap LED on the Cisco 10720 Internet Router

Cisco Discovery Protocol on the Cisco 10000 Series Edge Services Router

Detection Mechanism for the MPLS Traffic Engineering (TE)—Fast Reroute (FRR) Node Protection, with RSVP Hellos Support Feature

Frame Relay and PPP Sessions on the Cisco 10000 Series Edge Services Router

Performance Routing Engine 1 (PRE1) on the Cisco 10000 Series Edge Services Router

set-overload-bit Command

Support for Jumbo Frames on Cisco 12000 Series 3-Port Gigabit Ethernet Line Cards

Upgrading Cisco IOS Software from Earlier Cisco IOS Releases on the Cisco 10000 Series Edge Services Router

VLAN Session Support on the Cisco 10000 Series Edge Services Router

Important Notes for Cisco IOS Release 12.0(21)S

Cisco 12000 Series Images Deferred in Cisco IOS Release 12.0(21)S

show ip bgp dampened-paths and show ip bgp flap-statistics Commands Replaced by show ip bgp dampening Command

Important Notes for Cisco IOS Release 12.0(19)S

Configurable Throttling for Integrated IS-IS

Memory Enhancements for the Cisco 12000 Internet Router Gigabit Route Processor

Important Notes for Cisco IOS Release 12.0(18)S

ip routing protocol purge interface Command

Required Memory for Cisco 12000 Series Line Cards with Full Internet Routes

Important Notes for Cisco IOS Release 12.0(17)S

Addition of show interfaces interface x/y controller Command

Important Notes for Cisco IOS Release 12.0(16)S

Cisco Express Forwarding Command Added

Important Notes for Cisco IOS Release 12.0(15)S

Additional or Changed msdp Commands

Cisco Express Forwarding Commands Added

Important Notes for Cisco IOS Release 12.0(14)S

Cisco Express Forwarding Command Added

Important Notes for Cisco IOS Release 12.0(13)S

Cisco 7500/RSP Series Images Deferred

Important Notes for Cisco IOS Release 12.0(12)S

Cisco Express Forwarding Commands Added

Important Notes for Cisco IOS Release 12.0(10)S

Cisco Express Forwarding Command Modified

Unicast RPF—New ACL Bypass and Logging Functions

Important Notes for Cisco IOS Release 12.0(9)S

Cisco Express Forwarding Command Added

Important Notes for Cisco IOS Release 12.0(5)S

Cisco Express Forwarding Command Added


New and Changed Information

This section lists the new hardware and software features that are supported by the Cisco 7200 series routers, the Cisco 7500/RSP series routers, the Cisco 10000 series edge services routers, the Cisco 10720 Internet router, and the Cisco 12000 series Internet routers in Cisco IOS Release 12.0S and contains the following sections:

New Hardware Features in Cisco IOS Release 12.0(33)S3

New Software Features in Cisco IOS 12.0(33)S3

New Hardware Features in Cisco IOS Release 12.0(33)S2

New Software Features in Cisco IOS 12.0(33)S2

New Hardware Features in Cisco IOS Release 12.0(33)S1

New Software Features in Cisco IOS 12.0(33)S1

New Hardware Features in Cisco IOS Release 12.0(33)S

New Software Features in Cisco IOS 12.0(33)S

New Hardware Features in Cisco IOS Release 12.0(32)S12

New Software Features in Cisco IOS Release 12.0(32)S12

New Hardware and Software Features in Cisco IOS Release 12.0(32)S3 to Cisco IOS Release 12.0(32)S10

New Hardware Features in Cisco IOS Release 12.0(32)S2

New Software Features in Cisco IOS Release 12.0(32)S2

New Hardware Features in Cisco IOS Release 12.0(32)S1

New Software Features in Cisco IOS Release 12.0(32)S1

New Hardware Features in Cisco IOS Release 12.0(32)S

New Software Features in Cisco IOS Release 12.0(32)S

New Hardware Features in Cisco IOS Release 12.0(31)S3

New Software Features in Cisco IOS Release 12.0(31)S3

New Hardware Features in Cisco IOS Release 12.0(31)S2

New Software Features in Cisco IOS Release 12.0(31)S2

New Hardware Features in Cisco IOS Release 12.0(31)S1

New Software Features in Cisco IOS Release 12.0(31)S1

New Hardware Features in Cisco IOS Release 12.0(31)S

New Software Features in Cisco IOS Release 12.0(31)S

New Hardware and Software Features in Cisco IOS Release 12.0(30)S1 to Cisco IOS Release 12.0(30)S5

New Hardware Features in Cisco IOS Release 12.0(30)S

New Software Features in Cisco IOS Release 12.0(30)S

New Hardware and Software Features in Cisco IOS Release 12.0(29)S1

New Hardware Features in Cisco IOS Release 12.0(29)S

New Software Features in Cisco IOS Release 12.0(29)S

New Hardware and Software Features in Cisco IOS Release 12.0(28)S1 to Cisco IOS Release 12.0(28)S6

New Hardware Features in Cisco IOS Release 12.0(28)S

New Software Features in Cisco IOS Release 12.0(28)S

New Hardware and Software Features in Cisco IOS Release 12.0(27)S1 to Cisco IOS Release 12.0(27)S5

New Hardware Features in Cisco IOS Release 12.0(27)S

New Software Features in Cisco IOS Release 12.0(27)S

New Hardware and Software Features in Cisco IOS Release 12.0(26)S1 to Cisco IOS Release 12.0(26)S6

New Hardware Features in Cisco IOS Release 12.0(26)S

New Software Features in Cisco IOS Release 12.0(26)S

New Hardware and Software Features in Cisco IOS Release 12.0(25)S1 to Cisco IOS Release 12.0(25)S4

New Hardware Features in Cisco IOS Release 12.0(25)S

New Software Features in Cisco IOS Release 12.0(25)S

New Hardware and Software Features in Cisco IOS Release 12.0(24)S1 to Cisco IOS Release 12.0(24)S6

New Hardware Features in Cisco IOS Release 12.0(24)S

New Software Features in Cisco IOS Release 12.0(24)S

New Hardware and Software Features in Cisco IOS Release 12.0(23)S1 to Cisco IOS Release 12.0(23)S6

New Hardware Features in Cisco IOS Release 12.0(23)S

New Software Features in Cisco IOS Release 12.0(23)S

New Hardware and Software Features in Cisco IOS Release 12.0(22)S1 to Cisco IOS Release 12.0(22)S6

New Hardware Features in Cisco IOS Release 12.0(22)S

New Software Features in Cisco IOS Release 12.0(22)S

New Hardware and Software Features in Cisco IOS Release 12.0(21)S1 to Cisco IOS Release 12.0(21)S8

New Hardware Features in Cisco IOS Release 12.0(21)S

New Software Features in Cisco IOS Release 12.0(21)S

New Hardware and Software Features in Cisco IOS Release 12.0(19)S1 to Cisco IOS Release 12.0(19)S4

New Hardware Features in Cisco IOS Release 12.0(19)S

New Software Features in Cisco IOS Release 12.0(19)S

New Hardware and Software Features in Cisco IOS Release 12.0(18)S1 to Cisco IOS Release 12.0(18)S7

New Hardware Features in Cisco IOS Release 12.0(18)S

New Software Features in Cisco IOS Release 12.0(18)S

New Hardware and Software Features in Cisco IOS Release 12.0(17)S1 to Cisco IOS Release 12.0(17)S7

New Hardware Features in Cisco IOS Release 12.0(17)S

New Software Features in Cisco IOS Release 12.0(17)S

New Hardware and Software Features in Cisco IOS Release 12.0(16)S1 to Cisco IOS Release 12.0(16)S10

New Hardware Features in Cisco IOS Release 12.0(16)S

New Software Features in Cisco IOS Release 12.0(16)S

New Hardware and Software Features in Cisco IOS Release 12.0(15)S1 to Cisco IOS Release 12.0(15)S7

New Hardware Features in Cisco IOS Release 12.0(15)S

New Software Features in Cisco IOS Release 12.0(15)S

New Hardware and Software Features in Cisco IOS Release 12.0(14)S1 to Cisco IOS Release 12.0(14)S8

New Hardware Features in Cisco IOS Release 12.0(14)S

New Software Features in Cisco IOS Release 12.0(14)S

New Hardware and Software Features in Cisco IOS Release 12.0(13)S1 to Cisco IOS Release 12.0(13)S6

New Hardware Features in Cisco IOS Release 12.0(13)S

New Software Features in Cisco IOS Release 12.0(13)S

New Hardware and Software Features in Cisco IOS Release 12.0(12)S3 to Cisco IOS Release 12.0(12)S3

New Hardware Features in Cisco IOS Release 12.0(12)S

New Software Features in Cisco IOS Release 12.0(12)S

New Hardware and Software Features in Cisco IOS Release 12.0(11)S6

New Hardware Features in Cisco IOS Release 12.0(11)S

New Software Features in Cisco IOS Release 12.0(11)S

New Hardware and Software Features in Cisco IOS Release 12.0(10)S7 to Cisco IOS Release 12.0(10)S8

New Hardware Features in Cisco IOS Release 12.0(10)S

New Software Features in Cisco IOS Release 12.0(10)S

New Hardware and Software Features in Cisco IOS Release 12.0(8)S1

New Hardware Features in Cisco IOS Release 12.0(8)S

New Software Features in Cisco IOS Release 12.0(8)S

New Hardware Features by Cisco IOS Release 12.0(7)S

New Software Features in Cisco IOS Release 12.0(7)S

New Hardware Features in Cisco IOS Release 12.0(6)S

New Software Features in Cisco IOS Release 12.0(6)S

New Hardware Features in Cisco IOS Release 12.0(5)S

New Software Features in Cisco IOS Release 12.0(5)S


Note These release notes are not cumulative and list only features that are new to Cisco IOS Release 12.0S. The parent release for Cisco IOS Release 12.0S is Cisco IOS Release 12.0. For information about inherited features, refer to Cisco.com or Cisco Feature Navigator. For Cisco.com, either go to Cisco.com and select the appropriate software release under Products and Service and IOS Software or go to http://www.cisco.com/univercd/home/index.htm and select the appropriate software release under Cisco IOS Software and Release Notes. You can use the Cisco Feature Navigator tool at http://www.cisco.com/go/fn.



Note MPLS class of service is now referred to as MPLS quality of service. This transition reflects the growth of MPLS to encompass a wider meaning and highlight the path toward Any Transport over MPLS (AToM).


New Hardware Features in Cisco IOS Release 12.0(33)S3

There are no new hardware features in Cisco IOS Release 12.0(33)S3.

New Software Features in Cisco IOS 12.0(33)S3

This section describes new and changed features in Cisco IOS Release 12.0(33)S3. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(33)S3. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature.

BGP Support for 4-Byte ASN

Platform: Cisco 12000-GRP, Cisco 12000-PRP

The BGP Support for 4-Byte ASN feature was introduced in Cisco IOS Release 12.0(32)S12 with asdot format support only for 4-byte autonomous system numbers. In Cisco IOS Release 12.0(33)S3, support for the asplain format of 4-byte autonomous system numbers is introduced. Both asplain and asdot format are now supported, but the default format has changed to the asplain format.

For detailed information about this feature, see the "Cisco BGP Overview" and "Configuring a Basic BGP Network" modules of the Cisco IOS IP Routing Protocols Configuration Guide and the Cisco IOS IP Routing Protocols Command Reference at the following URLs:

http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/irp_bgp_overview.html

http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/irp_bgp_basic_net.html

http://www.cisco.com/en/US/docs/ios/iproute/command/reference/irp_book.html

New Hardware Features in Cisco IOS Release 12.0(33)S2

There are no new hardware features in Cisco IOS Release 12.0(33)S2.

New Software Features in Cisco IOS 12.0(33)S2

This section describes new and changed features in Cisco IOS Release 12.0(33)S2. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(33)S2. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature.

Flow-control CLI

Flow control functionality is particularly useful when a remote end does not support flow control and a need arises to disable flow control on a Gigabit Ethernet (GE) or Fast Ethernet (FE) interface on a Cisco 12000 series router. By default, flow control is enabled on a GE or FE interface. Use the show interface flowcontrol command to view the flow control configuration on interfaces. To enable flow control, use the flowcontrol bidirectional command; to disable flow control, use the no flowcontrol bidirectional command. The flow control configuration must be same on both ends of the link (both enabled or both disabled).

Prerequisites to Execute Flow Control CLIs

1) Commands supported on Cisco IOS Release 12.0(33)S2.

2) Supported on Cisco 12000 series routers.

3) Supported only on GE or FE interfaces of an Engine 5 SIP-401/501/600/601 line card.

4) Disable auto-negotiation using the no negotiation auto command before executing the [no] flowcontrol bidirectional command.

Caveats of Flow Control Functionality

1) Not supported on a GE SPA interface with a Copper SFP inserted in it.

2) Not supported on a 1-Port 10-Gigabit Ethernet SPA.

3) Not supported on the SPA-2X1GE-V2.

For more information, see the "SIP and SPA Commands" chapter of the Cisco 12000 Series Router SIP and SPA Software Configuration Guide, 12.0(33)S:

http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/12000Series/12scref.html

IPHC Over Frame Relay for Interface Support

IP header compression is a mechanism that compresses the IP header in a packet before the packet is transmitted. Header compression reduces network overhead and speeds up the transmission of either Real-Time Transport Protocol (RTP) or Transmission Control Protocol (TCP) packets.

The IPHC Over Frame Relay for Interface Support feature enables efficient transmission of real-time traffic such as voice and video by compressing and decompressing the packet header. IPHC over Frame Relay is supported on Cisco 12000 Series Engine 5 based SIP-401/501/601 line cards on Frame Relay interfaces. For Frame Relay, the Cisco encapsulation type is the only encapsulation type on which this feature is supported. This feature is already supported on PPP/MLPPP interfaces. This feature has been designed for slow links so that optimum usage of bandwidth can be obtained and so that the quality of delay-sensitive traffic such as voice and video is not affected. IPHC works by first sending a full-header, and as the difference in packet remains constant, it maintains a copy of the difference between the previous packet and the current packets. This data is referred to as the session context ID, which it uses to completely reconstruct the packet header by adding the difference.

For further information on this feature, see the following:

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/IPHC.html

New Hardware Features in Cisco IOS Release 12.0(33)S1

This section describes new and changed features in Cisco IOS Release 12.0(33)S1. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(33)S1. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature.

Shared Port Adapters (SPAs) and SPA Interface Processors (SIPS) for the Cisco 12000 Series

Platform: Cisco 12000 series

In Cisco IOS Release 12.0(33)S1 support for the following hardware by the Cisco 12000 SIP-401, Cisco 12000 SIP-501 and Cisco 12000 SIP-601 was introduced on the Cisco 12000 series router:

1-Port 10-Gigabit Ethernet SPA [WAN-PHY] (SPA-1X10GE-WL-V2)

1-Port 10-Gigabit Ethernet DWDM SPA (SPA-1X10GE-L-ITUC)

8-Port Gigabit Ethernet SPA (SPA-8X1GE-V2)

In Cisco IOS Release 12.0(33)S1 support for the following hardware by the Cisco 12000 SIP-501 and Cisco 12000 SIP-601 was introduced on the Cisco 12000 series router:

2-Port and 4-Port OC-48c/STM-16 POS SPA

In Cisco IOS Release 12.0(33)S1 information specific to BERT configuration for the following SPAs was introduced:

2-Port and 4-Port Channelized T3 SPA

8-Port Channelized T1/E1 SPA

1-Port Channelized OC-3/STM-1 SPA


Note For 2- and 4-port Channelized T3 spa and 1 port channelized OC3 SPA, if BERT is run on a T3 controller, then BERT should not be run on a T1/E1 controller which is part of that T3. Running both will result in incorrect test results.


Enhanced Fabric for Cisco 12000 Series

Cisco IOS Release 12.0(33)S1 adds a number of enhanced fabric options for the Cisco 12000 Series:

Fabric options configurable within the Cisco 12000 6-slot chassis:

12406E/120 120Gbps Enhanced Fabric with 3xSFC and 2xCSC for Cisco 12406

12006E/30 30Gbps Enhanced Fabric with 3SFC and 2CSC for Cisco 12006

Fabric options configurable within the Cisco 12000 4-slot chassis:

12404E/80 80Gbps Enhanced Consolidated Fabric and Alarm for Cisco12404

12004E/20 Cisco 12004 20Gbps Enhanced Consolidated Fabric and Alarm

Fabric kits for field upgrades within the Cisco 12000 6-slot chassis:

12406E/120= 120Gbps Enhanced Fabric with 3xSFC and 2xCSC for Cisco 12406

12006E/30= 30Gbps Enhanced Fabric with 3SFC and 2CSC for Cisco 12006

Fabric kits for field upgrades within the Cisco 12000 4-slot chassis:

12404E/80= 80Gbps Enhanced Consolidated Fabric and Alarm for Cisco12404

12004E/20= Cisco 12004 20Gbps Enhanced Consolidated Fabric and Alarm

All of the above enhanced fabric options support Single Router APS, BITS and Dual Priority features added in Cisco IOS Release 12.0(33)S1.

New Software Features in Cisco IOS 12.0(33)S1

This section describes new and changed features in Cisco IOS Release 12.0(33)S1. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(33)S1. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature.

Access Control List Enhancements

Platform: Cisco 12000 series

In Cisco IOS Release 12.0(33)S1 support was added for the following access control list (ACL) features:

IPv4 Named ACLs on distributed switch engines (IP Services Engine/Engine 3 and Engine 5)

ACL sequence numbering

Time-based access control entries (ACEs)

Time to Live (TTL)-based ACEs

BFD Version 1 Support

Platform: Cisco 12000 series

Bidirectional Forwarding Detection (BFD) is a detection protocol designed to provide fast forwarding path failure detection times for all media types, encapsulations, topologies, and routing protocols. In addition to fast forwarding path failure detection, BFD provides a consistent failure detection method for network administrators. Because the network administrator can use BFD to detect forwarding path failures at a uniform rate, rather than the variable rates for different routing protocol hello mechanisms, network profiling and planning will be easier, and reconvergence time will be consistent and predictable.

CBQoS MIB support for Control Plane Policing

Platform: Cisco 12000 series

Cisco IOS Release 12.0(33)S1 adds support on the Cisco 12000 for Control Plane Policing using the CBQoS MIB.

Cisco IOS Flexible Netflow

Platform: Cisco 12000 series

NetFlow is a Cisco IOS technology that provides statistics on packets flowing through a router. NetFlow is the standard for acquiring IP operational data from IP networks. NetFlow provides network and security monitoring, network planning, traffic analysis, and IP accounting.

Flexible NetFlow improves on original NetFlow by adding the capability to customize the traffic analysis parameters for your specific requirements. Flexible NetFlow makes it easier to create more complex configurations for traffic analysis and data export through the use of reusable configuration components.

Color-Aware Policer

Platform: Cisco 12000 series

Cisco IOS Release 12.0(33)S1 provides support for the Color-Aware Policer on Engine-3/Engine-5 line cards for Ethernet over L2TPv3.

The Color-Aware Policer enables a "color-aware" method of traffic policing. This feature allows you to police traffic according to the color classification of a packet. The packet color classification is based on packet matching criteria defined for two user-specified traffic classes—the conform-color class and the exceed-color class. These two traffic classes are created using the conform-color command and the metering rates are defined using the police command.

Field-Programmable Devices Feature Command Enhancement

Platform: Cisco 12000 series

In the Field-Programmable Devices feature, the upgrade hw-module subslot fpd file command replaces the upgrade hw-module subslot command.

H-VPLS with MPLS Edge

Platform: Cisco 12000 series

Virtual Private LAN Services (VPLS) uses the provider core to join multiple attachment circuits together to simulate a virtual bridge that connects the multiple attachment circuits together. From a customer point of view, there is no topology for VPLS. All of the CE devices appear to connect to a logical bridge emulated by the provider core.

IPv6 over Frame Relay

Platform: Cisco 12000 series

Frame Relay is used as a way to offer multiple service levels for a customer link. The IPv6 over Frame Relay feature allows users to configure IPv6 addresses over Frame Relay physical interfaces and subinterfaces on Engine 3 and Engine 5 line cards in Cisco 12000 series Internet routers and to send IPv6 traffic over the Frame Relay interfaces. The supported Frame Relay encapsulations are Cisco Frame Relay and Internet Engineering Task Force (IETF) Frame Relay.

L2TPv3 Protocol Demultiplexing for IPv6 over HDLC

Platform: Cisco 12000 series

Upgrading a service provider network to support IPv6 is a long and expensive process. As an interim solution, the Protocol Demultiplexing for L2TPv3 feature introduces the ability to provide native IPv6 support by setting up a specialized IPv6 network and offloading IPv6 traffic from the IPv4 network. IPv6 traffic is transparently tunneled to the IPv6 network using L2TPv3 pseudowires without affecting the configuration of the CE routers. IPv4 traffic is routed as usual within the IPv4 network, maintaining the existing performance and reliability of the IPv4 network. Cisco IOS Release 12.0(33)S1 adds support for this feature over HDLC links.

L2TPv3 Protocol Demultiplexing for IPv6 over PPP

Platform: Cisco 12000 series

Upgrading a service provider network to support IPv6 is a long and expensive process. As an interim solution, the Protocol Demultiplexing for L2TPv3 feature introduces the ability to provide native IPv6 support by setting up a specialized IPv6 network and offloading IPv6 traffic from the IPv4 network. IPv6 traffic is transparently tunneled to the IPv6 network using L2TPv3 pseudowires without affecting the configuration of the CE routers. IPv4 traffic is routed as usual within the IPv4 network, maintaining the existing performance and reliability of the IPv4 network. Cisco IOS Release 12.0(33)S1 adds support for this feature over PPP links.

L2VPN PW Conditional Debugging

Support was added for the following features to Cisco IOS Release 12.0(33)S1:

Protocol Demultiplexing for L2TPv3 on Engine-3/Engine-5 line cards in the Cisco 12000 series platforms

Color Aware Policer on Engine-3/Engine-5 line cards for Ethernet over L2TPv3

Site of Origin for Border Gateway Protocol Virtual Private Networks (BGP-VPNs)

Link bundling enhancements

Platform: Cisco 12000 series

In Cisco IOS Release 12.0(33)S1 support was added for the following features in an ISE/E3 link bundle that consists of POS or GE member interfaces:

Multicast Egress QoS

QoS hierarchical policing

QoS hierarchical shaping

Unicast Reverse Path Forwarding (Strict Mode)

Support was added for Engine 5 (E5) Fast Ethernet member interfaces in an EtherChannel link bundle.

Engine 5 Egress support was added so that the following features are now supported in an EtherChannel link bundle that consists of E5 Fast Ethernet or Gigabit Ethernet member interfaces:

Any Transport over MPLS (AToM: Layer 2 Quality of Service, Ethernet over MPLS—VLAN mode only, and Layer 2 Local Switching)

Border Gateway Protocol (BGP) policy accounting

Feature parity on VLAN and Stacked VLAN subinterfaces

Hot Standby Router Protocol (HSRP)

MAC Address Accounting

MPLS VPN

Multicast and Multicast VPN

Policy-Based Routing

Quality of Service (QoS), including:

Multicast Egress QoS

QoS hierarchical policing

QoS hierarchical shaping

Route Processor Redundancy Plus (RPR+)

Sampled and Aggregate NetFlow on input and output interfaces

Stacked VLAN (802.1Q-in-Q) Processing

Unicast Reverse Path Forwarding (Loose and Strict Mode)

VLAN ID-based mode of load balancing

VLAN scalability

Cisco IOS software feature parity between a POS Channel that consists of ISE, E4+, E5, or E6 member interfaces and EtherChannel bundles was added.

Stateful Switchover (SSO) support in link bundles was added.

In 12.0(33)S1, the Unicast RPF in Strict Mode feature was introduced on the Cisco 12000 series Internet router.

The Unicast RPF in Strict Mode on the Cisco 12000 Series Internet Router feature provides enhanced filtering capacity on incoming IPv4 traffic and greater protection from DoS attacks.

MPLS Traffic Engineering: BFD-Trigerred Fast Reroute Feature

Platform: Cisco 12000 series

The MPLS Traffic Engineering: BFD-trigerred Fast Reroute feature allows you to obtain link and node protection by using the Bidirectional Forwarding Detection (BFD) protocol to provide fast forwarding path failure detection times for all media types, encapsulations, topologies, and routing protocols. In addition to fast forwarding path failure detection, BFD provides a consistent failure detection method for network administrators.

New Hardware Features in Cisco IOS Release 12.0(33)S

This section describes new and changed features in Cisco IOS Release 12.0(33)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(33)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature.

NPE-G2 Network Processing Engine

Platform: Cisco 7200VXR routers

The Network Processing Engine NPE-G2 is the latest and highest performing routing engine with largest scalability within the network processing engines family for the Cisco 7200VXR Series. A new chip design on the NPE-G2 offers up to double of the performance compared to the NPE-G1 network processing engine. This great performance improvement with the NPE-G2 makes it an ideal Cisco 7200 solution for new aggregation services for the enterprise as well as service provider segment.

New Software Features in Cisco IOS 12.0(33)S

This section describes new and changed features in Cisco IOS Release 12.0(33)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(33)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature.

BFD Version 1 Support

Platform: Cisco 7200 series, Cisco 7500 series, Cisco 10720 router

Bidirectional Forwarding Detection (BFD) is a detection protocol designed to provide fast forwarding path failure detection times for all media types, encapsulations, topologies, and routing protocols. In addition to fast forwarding path failure detection, BFD provides a consistent failure detection method for network administrators. Because the network administrator can use BFD to detect forwarding path failures at a uniform rate, rather than the variable rates for different routing protocol hello mechanisms, network profiling and planning will be easier, and reconvergence time will be consistent and predictable.

Implementing IPv6 over Frame Relay

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-frame_relay.html

L2TPv3 Protocol Demultiplexing for IPv6 over HDLC

Platform: Cisco 7200 series and Cisco 7500 series

Upgrading a service provider network to support IPv6 is a long and expensive process. As an interim solution, the Protocol Demultiplexing for L2TPv3 feature introduces the ability to provide native IPv6 support by setting up a specialized IPv6 network and offloading IPv6 traffic from the IPv4 network. IPv6 traffic is transparently tunneled to the IPv6 network using L2TPv3 pseudowires without affecting the configuration of the CE routers. IPv4 traffic is routed as usual within the IPv4 network, maintaining the existing performance and reliability of the IPv4 network. Cisco IOS Release 12.0(33)S adds support for this feature over HDLC links.

L2TPv3 Protocol Demultiplexing for IPv6 over PPP

Platform: Cisco 7500 series

Upgrading a service provider network to support IPv6 is a long and expensive process. As an interim solution, the Protocol Demultiplexing for L2TPv3 feature introduces the ability to provide native IPv6 support by setting up a specialized IPv6 network and offloading IPv6 traffic from the IPv4 network. IPv6 traffic is transparently tunneled to the IPv6 network using L2TPv3 pseudowires without affecting the configuration of the CE routers. IPv4 traffic is routed as usual within the IPv4 network, maintaining the existing performance and reliability of the IPv4 network. Cisco IOS Release 12.0(33)S adds support for this feature over PPP links.

MPLS OAM Tools

Platform: Cisco 10720 router

Cisco IOS Release 12.0(33)S adds support for the following features:

LSP Ping: tests LSP connectivity for IPv4 Label Distribution Protocol (LDP) prefixes, traffic engineering (TE) forwarding equivalence classes (FECs), and AToM FECs between two provider edge (PE) routers.

LSP Traceroute: traces LSPs hop-by-hop for IPv4 LDP prefixes and TE tunnel FECs to localize faults in the network.

AToM Virtual Circuit Connection Verification (VCCV): allows you to test the pseudowire (PW) section of an AToM virtual circuit (VC), providing end-to-end fault detection and diagnostics. (The AToM VCCV feature can be applied to EoMPLS connections configured on the Cisco 10720 Internet router.)

MPLS Traffic Engineering: BFD-Triggered Fast Reroute Feature

Platform: Cisco 7200 series, Cisco 7500 series

The MPLS Traffic Engineering: BFD-triggered Fast Reroute feature allows you to obtain link and node protection by using the Bidirectional Forwarding Detection (BFD) protocol to provide fast forwarding path failure detection times for all media types, encapsulations, topologies, and routing protocols. In addition to fast forwarding path failure detection, BFD provides a consistent failure detection method for network administrators.

New Hardware Features in Cisco IOS Release 12.0(32)S12

There are no new hardware features in Cisco IOS Release 12.0(32)S12.

New Software Features in Cisco IOS Release 12.0(32)S12

This section describes new and changed features in Cisco IOS Release 12.0(32)S12. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(32)S12. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

BGP Support for 4-Byte ASN

Platform: Cisco 12000-GRP, Cisco 12000-PRP

The BGP Support for 4-Byte ASN feature introduces support for 4-byte autonomous system numbers. Because of increased demand for autonomous system numbers, in January 2009 the IANA will start to allocate 4-byte autonomous system numbers in the range from 65536 to 4294967295. The Cisco implementation of 4-byte autonomous system numbers uses asplain as the default output display format for autonomous system numbers, but you can configure 4-byte autonomous system numbers in both the asplain format and the asdot format as described in RFC 5396. In addition, the default format for matching 4-byte autonomous system numbers in regular expressions is asplain, so you must ensure that any regular expressions to match 4-byte autonomous system numbers are written in the asplain format. If you want to change the default show command output to display autonomous system numbers in the asdot format, use the bgp asnotation dot command under router configuration mode. When the asdot format is enabled as the default, any regular expressions to match 4-byte autonomous system numbers must be written using the asdot format, or else the regular expression match will fail. Cisco also supports RFC 4893, which was developed to allow BGP to support a gradual transition from 2-byte autonomous system numbers to 4-byte autonomous system numbers.

For detailed information about this feature, see the "Cisco BGP Overview" and "Configuring a Basic BGP Network" modules of the Cisco IOS IP Routing Protocols Configuration Guide and the Cisco IOS IP Routing Protocols Command Reference at the following URLs:

http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/irp_bgp_overview.html

http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/irp_bgp_basic_net.html

http://www.cisco.com/en/US/docs/ios/iproute/command/reference/irp_book.html

New Hardware and Software Features in Cisco IOS Release 12.0(32)S3 to Cisco IOS Release 12.0(32)S10

There are no new hardware or software features in Cisco IOS Release 12.0(32)S3 to Cisco IOS Release 12.0(32)S10.

New Hardware Features in Cisco IOS Release 12.0(32)S2

There are no new hardware features in Cisco IOS Release 12.0(32)S2.

New Software Features in Cisco IOS Release 12.0(32)S2

This section describes new and changed features in Cisco IOS Release 12.0(32)S2. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(32)S2. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Remark Precedence Feature

Platform: Cisco 12000 series

The hw-module slot 0 qos remark-precedence prec command has been introduced on the Cisco 12000 series router Engine 3 and Engine 5 line cards to support remarking non-important route processor generated traffic with a new precedence in Cisco IOS Release 12.0(32)S2.

For detailed information about this feature, see the L2/L3 QoS Computations and Remark Precedence for Cisco 12000 Series Router Multiservice Engine Line Cards document at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/l2l3comp.htm

Selective MVRF Download

Platform: Cisco 12000

The Selective MVRF Download feature allows Multicast Virtual Routing and Forwarding (MVRF) routing instances to be downloaded to line cards as needed instead of downloading to all line cards. The advantage is that this action saves line card memory by reducing the number of mroutes configured and lowers the use of the CPU by the line card.

This feature is set by default so the ip multicast command is modified with the addition of new keywords to bypass the feature if needed. The modified command is ip multicast mdfs download all. Two new commands show ip mds vrf vpn download interface slot and show ip mds vrf vpn download slot-list are added to monitor this feature.

Two show commands have been changed. For monitoring the MDFS Route Processor, use the show ip multicast command. For the MDFS line card, use the show ip mds vrf vrf_name summary command to display the multicast routes configured on a line card in the context of a VRF. This show command will display a flag indicating the feature was in effect on the line card.

New Hardware Features in Cisco IOS Release 12.0(32)S1

There are no new hardware features in Cisco IOS Release 12.0(32)S1.

New Software Features in Cisco IOS Release 12.0(32)S1

This section describes new and changed features in Cisco IOS Release 12.0(32)S1. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(32)S1. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

ATM CBR and VBR-rt Support

Platforms: Cisco 7200 series, Cisco 7500 series

The ATM CBR and VBR-rt Support feature is now available on the PA-A3-8E1IMA and PA-A3-8T1IMA port adapters. For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
cbrvb12s.htm

New Hardware Features in Cisco IOS Release 12.0(32)S

This section describes new and changed features in Cisco IOS Release 12.0(32)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(32)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

1-Port Enhanced ATM Port Adapter with Support for 8000 VCs

Platforms: Cisco 7200 series, Cisco 7500 series

Cisco IOS Release 12.0(32)S adds support for the PA-A6 port adapters and support for 8000 virtual circuits (VCs) on the PA-A6 port adapters. The PA-A6 is a series of single-width, single-port, ATM port adapters. With advanced ATM features, the PA-A6 port adapters supports broadband aggregation, WAN aggregation, and campus/MAN aggregation. The following PA-A6 port adapters are supported:

PA-A6-OC3MM: 1-port ATM OC-3c/STM-1 multimode port adapter, enhanced

PA-A6-OC3SMI: 1-port ATM OC-3c/STM-1 single-mode (IR) port adapter, enhanced

PA-A6-OC3SML: 1-port ATM OC-3c/STM-1 single-mode (LR) port adapter, enhanced

PA-A6-T3: 1-port ATM DS3 port adapter, enhanced

PA-A6-E3: 1-port ATM E3 port adapter, enhanced

For detailed information about these products, see the PA-A6 Port Adapter Installation and Configuration document:

http://www.cisco.com/univercd/cc/td/doc/product/core/7206/port_adp/atm_-pas/pa-a6/
index.htm

CWDM Pluggable Optics Support for the Cisco 12000 Series

Platform: Cisco 12000 series

For detailed information about these products, see the following documents:

Cisco CWDM GBIC and SFP Solution Data Sheet:

http://www.cisco.com/en/US/docs/routers/12000/gsr_linecards/enet_lc/installation/guide/enet_lc.html

Ethernet Line Card Installation and Configuration document:

http://www.cisco.com/en/US/docs/routers/12000/gsr_linecards/enet_lc/installation/guide/enet_lc.html

Shared Port Adapters (SPAs) and SPA Interface Processors (SIPS) for the Cisco 12000 Series

Platform: Cisco 12000 series

Cisco IOS Release 12.0(32)S introduces the following Shared Port Adapter (SPA) Interface Processors (SIPs):

12000-SIP-401: 12000 Series SPA Interface Processor-401
(also referred to as 2.5G Multiservice Engine SPA Interface Processor)

12000-SIP-501: 12000 Series SPA Interface Processor-501
(also referred to as 5G Multiservice Engine SPA Interface Processor)

12000-SIP-601: 12000 Series SPA Interface Processor-601
(also referred to as 10G Multiservice Engine SPA Interface Processor)

These SIPs support the following types of SPAs:

2 single-width, double-height, or

2 single-width, single-height, or

1 dual-width, double-height

Cisco IOS Release 12.0(32)S introduces the following SPAs:

SPA-1XCHSTM1/OC3: 1-port channelized OC-3/STM-1 Engine 5 SPA

SPA-2X1GE: 2-port Gigabit Ethernet Engine 5 SPA

SPA-8XCHT1/E1: 8-port Channelized T1/E1 Engine 5 SPA

SPA-8XFE: 8-port Fast Ethernet Engine 5 SPA

For detailed information about these products, see the Cisco 12000 series SIP and SPA installation and configuration guides at the following location:

Cisco 12000 Series Routers SIP and SPA Hardware Installation Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_hw/
index.htm

Cisco 12000 Series Router SIP and SPA Software Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_swcs/
index.htm

New Software Features in Cisco IOS Release 12.0(32)S

This section describes new and changed features in Cisco IOS Release 12.0(32)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(32)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

ACL IP Options Selective Drop

Platform: Cisco 10720

For detailed information about this feature (also referred to as IP Options Selective Drop), see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/
sel_drop.htm

Any Transport over MPLS (AToM)

Cisco IOS Release 12.0(32)S supports the following Any Transport over MPLS (AToM) features on Engine 5 line cards.

Any Transport over MPLS (AToM) Sequencing Support

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fsatom30.html

Any Transport over MPLS (AToM): Layer 2 QoS (Quality of Service)

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/12sl2qos.html

Any Transport over MPLS (AToM): Ethernet over MPLS (EoMPLS)

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

Any Transport over MPLS (AToM): Frame Relay over MPLS (FRoMPLS)

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

Any Transport over MPLS (AToM): HDLC over MPLS (HDLCoMPLS)

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

Any Transport over MPLS (AToM): PPP over MPLS (PPPoMPLS)

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

Any Transport over MPLS (AToM): VC Independence

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

AutoInstall Support on Dual Mode IEEE 802.17 RPR/SRP Uplink Cards

Platform: Cisco 10720

For information about this feature, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/
10720.htm

Bidirectional Forwarding Detection

Platform: Cisco 10720, Cisco 12000 series

For the Cisco 12000 series, Cisco IOS Release 12.0(32)S introduces support for Bidirectional Forwarding Detection (BFD) on shared port adaptors (SPAs) and SPA Interface Processors (SIPs).

For detailed information about this feature for both the Cisco 10720 and the Cisco 12000 series, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122sx/
12218sxe/fs_bfd.htm

For information about this feature in relation to the Cisco 10720, see the "Bidirectional Forwarding Detection" section in the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/
10720.htm

Cisco 7200 Series Routers Boot Images Information

Platforms: Cisco 7200 series

The c7200-mboot-mz image contains support for a small, specific set of port adapters and older I/O controllers. The c7200-mboot-mz image is small enough to fit on older I/O controller Flash (bootflash) memory.

For detailed information about this feature, see the Cisco 7200 Series Routers Boot Images Information document at the following URL:

http://www.cisco.com/en/US/docs/routers/7200/install_and_upgrade/7200_boot_image_info/3876b.html

Configuring 8 Queues per Interface on the 1-port Channelized OC12/STM-1 to DS1/E1 Line Card

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
8que_if.htm

Control Plane Policing (CPP)

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/
gtrtlimt.htm

DHCP-PD/DHCPv6

Platform: Cisco 12000 series

For more information on the DHCP-PD/DHCPv6 feature for Cisco 12000 series 10G ISE line cards, see the following document:

Start Here: Cisco IOS Software Release Specifics for IPv6 Features

http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-roadmap.html

Frame Relay Support on Engine 5 Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the Cisco 12000 Series Router SIP and SPA Software Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_swcs/index.htm

High Priority Traffic Jitter Improvement for Cisco 12000 Series Router, Cisco 12000 SIP-400, Shared Port Adapters

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
jitter.htm

IP Receive ACL

Platform: Cisco 12000 series

This feature was enhanced to filter IPv6 traffic on the Cisco 12000 series. For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
ft_ipacl.htm

IPv6 QoS Enhancements for 12000 Series Router, ISE Line Cards, and SPAs

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
ipv6qos.htm

L2/L3 QoS Computations for Cisco 12000 Series Router Engine 5 Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
l2l3comp.htm

L2VPN Interworking Features

Platform: Cisco 12000 series

Cisco IOS Release 12.0(32)S supports the following Layer 2 VPN (L2VPN) features:

L2VPN Interworking: Ethernet to VLAN Interworking

L2VPN Interworking: Ethernet VLAN to ATM AAL5

L2VPN Interworking: Ethernet VLAN to Frame Relay

L2VPN Interworking: Frame Relay to ATM AAL5

For detailed information about these features, see the L2VPN Interworking document:

http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_l2vpn_intrntwkg_external_docbase_0900e4b1805ddd73_4container_external_docbase_0900e4b1806a218a.html

Link Bundling on Cisco 12000 Series Routers

Platform: Cisco 12000 series

This feature was enhanced. For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/
lnkbndl.htm

Link Fragmentation and Interleaving for Multilink PPP

Platform: Cisco 12000 series

For detailed information about this feature, see the Cisco 12000 Series Router SIP and SPA Software Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_swcs/index.htm

MPLS VPN over IP Tunnels

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/
csgl3vpn.htm

Multicast Egress QoS Support on Cisco 12000 Series Router ISE SPAs

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/mcastqos.html

Multilink Frame Relay and Multilink PPP Support on Channelized SPAs on Engine 5 Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the Cisco 12000 Series Router SIP and SPA Software Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_swcs/1232s/
index.htm

Multilink Frame Relay over L2TPv3/AToM

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsmfrl2.htm

OSPF RFC 3623 Graceful Restart

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
gr_ospf.htm

Output Aggregate NetFlow

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
oaggnf.htm

Power Management

Platform: Cisco 12000 series

In Cisco IOS Release 12.0(31)S, the Power Management feature calculates the maximum possible power consumption of all chassis components and generates warning messages if the calculation indicates the possibility of an underpowered condition. In Cisco IOS Release 12.0(32)S, if the calculation indicates the possibility of an underpowered condition, the last card added will not power up. For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
12spower.htm

Protocol-Independent MAC ACL Filtering

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
macacl.htm

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet Services

Platform: Cisco 10720

For detailed information about this feature, see the "Pseudowire Emulation Edge-to-Edge MIBs" section in the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/
10720.htm

QoS: CBQoS MIB Index Enhancements

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124newft/124t/124t4/ht_cbqos.htm

QoS Ingress Hierarchical Policing for Cisco 12000 Series Router Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
hierpol.htm

Tofab QoS Queues per Egress ISE SPA or ISE Line Card on Cisco 12000 Series Routers

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
tofabqos.htm

Unified QoS-Locally Generated Packet Prioritization on Cisco 12000 Series Router ISE Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
unif_qos.htm

Virtual Private LAN Service over IP or MPLS on Cisco 12000 Series Router Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s32/
vpls_qos.htm

New Hardware and Software Features in Cisco IOS Release 12.0(31)S4 to Cisco IOS Release 12.0(31)S4

There are no new hardware or software features in Cisco IOS Release 12.0(31)S4 to Cisco IOS Release 12.0(31)S6.

New Hardware Features in Cisco IOS Release 12.0(31)S3

There are no new hardware features in Cisco IOS Release 12.0(31)S3.

New Software Features in Cisco IOS Release 12.0(31)S3

This section describes new and changed features in Cisco IOS Release 12.0(31)S3. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(31)S3. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Component Outage On-Line (COOL) Measurement

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
fscool12.htm

IPv6 Provider Edge Router over MPLS (Cisco 6PE) Enhancement

Platform: Cisco 12000 series

On an IPv6-enabled provider edge (6PE) Cisco 12000 series router, when the edge-facing line card is an IP Services Engine (ISE) line card and when the core-facing line card is an Engine 4, Engine 4+, or Engine 5 line card, disposition performed on 6PE-labeled packets has been accelerated. The acceleration is possible because 6PE-label disposition is now performed in the hardware of the edge-facing ISE line card instead of in the CPU of the core-facing Engine 4, Engine 4+, or Engine 5 line card.

The acceleration applies only to IPv6 6PE-labeled packets. Aggregate 6PE label disposition has not been accelerated, and remains bound by the CPU forwarding performance of the core-facing Engine 4, Engine 4+, or Engine 5 line card.

Support for accelerated disposition on 6PE-labeled packets on Engine 4 and Engine 4+ line cards was introduced in Cisco IOS Release 12.0(28)S. Release 12.0(31)S3 adds support for accelerated disposition on 6PE-labeled packets over VLANs or subinterfaces on Engine 5 line cards.

No new or modified Cisco IOS software commands are introduced with this feature.

New Hardware Features in Cisco IOS Release 12.0(31)S2

This section describes new and changed features in Cisco IOS Release 12.0(31)S2. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(31)S2. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

1-Port Channelized OC-3/STM-1 Engine 5 SPA

Platform: Cisco 12000 series

Cisco IOS Release 12.0(31)S2 introduces the following Shared Port Adapter (SPA):

SPA-2XOC48c: 2-port OC48/STM16 POS SMLR Optics SPA

For detailed information about this product, see the Cisco 12000 series SIP and SPA installation and configuration guides at the following location:

Cisco 12000 Series Routers SIP and SPA Hardware Installation Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_hw/
index.htm

Cisco 12000 Series Router SIP and SPA Software Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_swcs/
index.htm

New Software Features in Cisco IOS Release 12.0(31)S2

This section describes new and changed features in Cisco IOS Release 12.0(31)S2. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(31)S2. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Layer 2 Local Switching for Cisco 12000 Series IP Services Engine Line Cards

Platform: Cisco 12000 series

The Layer 2 Local Switching feature allows you to switch Layer 2 data between two interfaces on the same router, and in some cases to switch Layer 2 data between two circuits on the same interface port. Starting in Cisco IOS Release 12.0(31)S2, Layer 2 local switching is supported on customer-facing interfaces on IP Services Engine (ISE) line cards that are installed in a Cisco 12000 series Internet router and configured for a native L2TPv3 tunnel session or an L2TPv3 tunnel session using a tunnel server card.


Note Native L2TPv3 tunnel sessions on customer-facing ISE line cards can coexist with tunnel sessions that use a tunnel server card.


The ISE interface-to-interface switching combinations supported by the Layer 2 local switching feature are:

ATM to ATM

ATM to Ethernet

ATM to Frame-Relay

Ethernet to Ethernet VLAN

Frame Relay to Frame Relay (including Multilink Frame Relay)

On an ISE customer-facing interface, the following types of same-port Layer 2 local switching are also supported:

Same-Port Switching for ATM (PVC and PVP)

Same-Port Switching for Ethernet VLAN

Same-Port Switching for Frame Relay

For more information about this feature, see the Layer 2 Local Switching document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/
fslocal.htm

Layer 2 Tunnel Protocol Version 3 for Cisco 12000 Series IP Services Engine Line Cards

Platform: Cisco 12000 series

The Layer 2 Tunnel Protocol Version 3 (L2TPv3) feature expands on Cisco support of the Layer 2 Tunnel Protocol (L2TP) to tunnel any Layer 2 payload over an IP core network using Layer 2 virtual private networks (VPNs). L2TPv3 simplifies the deployment of VPNs without requiring Multiprotocol Label Switching (MPLS) in the core network.

Starting in Cisco IOS Release 12.0(31)S2, L2TPv3 tunnel sessions (either native L2TPv3 or an L2TPv3 tunnel session that uses a tunnel server card) are supported on customer-facing interfaces on IP Services Engine (ISE) line cards that are installed in a Cisco 12000 series Internet router and configured for Layer 2 local switching.


Note Native L2TPv3 tunnel sessions on customer-facing ISE line cards can coexist with tunnel sessions that use a tunnel server card.


For more information about how to configure and use L2TPv3 tunneling for Layer 2 VPNs, including Layer 2 local switching support in an L2TPv3 tunnel session on an ISE line card, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htm

New Hardware Features in Cisco IOS Release 12.0(31)S1

There are no new hardware features in Cisco IOS Release 12.0(31)S1.

New Software Features in Cisco IOS Release 12.0(31)S1

This section describes new and changed features in Cisco IOS Release 12.0(31)S1. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(31)S1. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

BGP Multipath Loadsharing for MPLS VPN over IP Tunnels for Cisco 12000 Series Engine 5 Line Cards

Platform: Cisco 12000 series

This release introduces BGP Multipath Load Sharing for MPLS VPN over IP Tunnels support on Engine 5 shared port adapters (SPAs) and SPA Interface Processors (SIPs) on the Cisco 12000 series. For details about this feature, see the Cisco documents at the following locations:

MPLS VPNs over IP Tunnels

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/csgl3vpn.html

BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN

http://www.cisco.com/en/US/docs/ios/12_2sx/feature/guide/fsxeibmp.html

Hierarchical Traffic Shaping for MPLS VPN over IP Tunnels

Platform: Cisco 12000 series

Detailed information about this feature will be available soon.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120sy/120sy32/
hiershap.htm

New Hardware Features in Cisco IOS Release 12.0(31)S

This section describes new and changed features in Cisco IOS Release 12.0(31)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(31)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Cisco 12810 and Cisco 12816 Internet Routers

Cisco IOS Release 12.0(31)S introduces support for the Cisco 12810 and Cisco 12816, both of which support 40-Gbps switch fabric. For detailed information about these platforms, see the Cisco documents at the following locations:

For the Cisco 12810:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/cis12x10/index.htm

For the Cisco 12816:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/cis12x16/index.htm

Shared Port Adapters (SPAs) and SPA Interface Processors (SIPS) for the Cisco 12000 Series

Platform: Cisco 12000 series

Cisco IOS Release 12.0(31)S introduces the following Shared Port Adapter (SPA) Interface Processors (SIPs):

12000-SIP-400: 12000 Series SPA Interface Processor-400
(also referred to as 2.5G ISE SPA Interface Processor)

This SIP supports the following types of SPAs:

4 single-width, single-height

12000-SIP-600: 12000 Series SPA Interface Processor-600
(also referred to as 10G Engine 5 SPA Interface Processor)

This SIP supports the following types of SPAs:

2 single-width, double-height, or

2 single-width, single-height, or

1 dual-width, double-height

Cisco IOS Release 12.0(31)S introduces the following SPAs:

SPA-2XT3/E3: 2-Port T3/E3 Serial SPA
(also referred to as the 2-port clear channel T3/E3 ISE SPA)

SPA-4XT3/E3: 4-Port T3/E3 Serial SPA
(also referred to as the 4-port clear channel T3/E3 ISE SPA)

SPA-2XCT3/DS0: 2-Port Channelized T3 to DS0 SPA
(also referred to as the 2-port channelized T3/E3 ISE SPA)

SPA-4XCT3/DS0: 4-Port Channelized T3 to DS0 SPA
(also referred to as the 4-port channelized T3/E3 ISE SPA)

SPA-1XTENGE-XFP: 1-Port 10-Gigabit Ethernet Engine 5 SPA

SPA-5X1GE: 5-Port Gigabit Ethernet Engine 5 SPA

SPA-10X1GE: 10-Port Gigabit Ethernet Engine 5 SPA

SPA-OC192POS-LR: 1-port OC192/STM64 POS/RPR SMLR Optics Engine 5 SPA

SPA-OC192POS-XFP: 1-port OC192/STM64 POS/RPR XFP Optics Engine 5 SPA

For detailed information about these products, see the Cisco 12000 series SIP and SPA installation and configuration guides at the following location:

Cisco 12000 Series Routers SIP and SPA Hardware Installation Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_hw/
index.htm

Cisco 12000 Series Router SIP and SPA Software Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_spa/spa_swcs/
index.htm

New Software Features in Cisco IOS Release 12.0(31)S

This section describes new and changed features in Cisco IOS Release 12.0(31)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(31)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

ATM CBR and VBR-rt Support

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
cbrvb12s.htm

AToM Support on 2-Port and 4-Port Clear Channel T3/E3 SPAs

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

AToM Support on 2.5G ISE 2/4-Port Channelized T3/E3 SPAs

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

AToM VC Independence

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htm

BGP Route-Map Continue Support for Outbound Policy

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the BGP Route-Map Continue document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
cs_brmcs.htm

Bidirectional Forwarding Detection (BFD) Standard Implementation

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122sx/12218sxe/fs_bfd.htm

Building Integrated Timing Source (BITS)

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
12s_bits.htm

Exclusive Configuration Change Access and Access Session Locking

Platform: Cisco 12000 series

For detailed information about this feature, see the Exclusive Configuration Change Access (Configuration Lock) document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_14/
gt_exclu.htm

IMA Dynamic Bandwidth

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
fsimadyb.htm

Inter-AS 10B Hybrid for MPLS VPN over IP Tunnels

Platform: Cisco 12000 series

Cisco 12000 series ISE line cards now support Inter-AS 10B Hybrid for MPLS VPN over IP Tunnels. This feature allows peering of two networks with different BGP autonomous systems when the core network is MPLS VPN over IP Tunnels.

For more information on the Inter-AS 10B Hybrid feature for MPLS VPN over IP Tunnels, see the following three feature modules:

MPLS VPNs over IP Tunnels feature module

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s30/csgl3vpn.htm

MPLS VPN Interautonomous Systems Support feature module

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s24/fsias24.htm

MPLS VPN—Inter-AS—IPv4 BGP Label Distribution feature module

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s24/fsiasl24.htm

IP Receive ACL

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
ft_ipacl.htm

IPv6 Multicast PxF Acceleration

Platform: Cisco 10720

For detailed information about this feature, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/
10720.htm

L2VPN Pseudowire Redundancy

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
fspseudo.htm

L2VPN Pseudowire Switching

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
fsstitch.htm

L2TPv3 Native Tunneling on 4-port GE ISE Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htm

Layer 2 VPN (L2VPN): Syslog, SNMP Trap, and show Command Enhancements for AToM and L2TPv3

Platform: Cisco 12000 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htm

MPLS VPN Carrier Supporting Carrier over IP Tunnels

Platform: Cisco 12000 series

The Carrier Supporting Carrier for MPLS VPN over IP Tunnels feature is now supported on Cisco 12000 series ISE line cards. For detailed information about this feature, see the following documents:

MPLS VPN—Carrier Supporting Carrier

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s24/fscsc24.htm

MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s29/fscscleb.htm

Native L2TPv3 Tunneling and MPLS VPN over IP Tunnels on Channelized E3 and T3 Shared Port Adaptors

Platform: Cisco 12000 series

For detailed information about these features, see the following documents:

For support of native L2TPv3 tunneling on the channelized E3 and T3 Shared Port Adaptors, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s31/l2tpv31s.htm

For support of MPLS VPNs over IP tunnels on the channelized E3 and T3 Shared Port Adaptors, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s30/csgl3vpn.htm

Native L2TPv3 Tunneling and MPLS VPN over IP Tunnels on Clear Channel E3 and T3 Shared Port Adaptors

Platform: Cisco 12000 series

For detailed information about these features, see the following documents:

For support of native L2TPv3 tunneling on the clear channel E3 and T3 Shared Port Adaptors, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s31/l2tpv31s.htm

For support of MPLS VPNs over IP tunnels on the clear channel E3 and T3 Shared Port Adaptors, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s30/csgl3vpn.htm

Power Management

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
12spower.htm

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet and Frame Relay Services

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
gspwe31s.htm

QoS: Partial Support for Ingress Hierarchical Policing for the Cisco 12000 4-Port GE Line Card

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
12stetpo.htm

Reverse Path Forwarding—Source Exists Only

Platform: Cisco 10720

For detailed information about this feature, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/
10720.htm

Single Router APS

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
12ssraps.htm

Unicast Reverse Path Forwarding for IPv6

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
urpf_gsr.htm

New Hardware and Software Features in Cisco IOS Release 12.0(30)S1 to Cisco IOS Release 12.0(30)S5

There are no new hardware or software features in Cisco IOS Release 12.0(30)S1 to Cisco IOS Release 12.0(30)S5.

New Hardware Features in Cisco IOS Release 12.0(30)S

This section describes new and changed features in Cisco IOS Release 12.0(30)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(30)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

1-Port Packet over SONET OC3c/STM1 Port Adapter

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about the 1-port Packet over SONET OC3c/STM1 port adapter (PA-POS-1OC3), see the following documents:

Cisco 1-Port OC-3/STM-1 Packet-Over-SONET Port Adapter data sheet:

http://www.cisco.com/en/US/partner/products/hw/routers/ps341/
products_data_sheet0900aecd80221d3d.html

PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide:

http://www.cisco.com/univercd/cc/td/doc/product/core/7301/73pa/73-son/6514_1oc/index.htm

Performance Route Processor 2 Enhancements

Platform: Cisco 12000 series

The Performance Route Processor 2 (PRP-2) now supports a 10/100/1000 Mbps Ethernet port and an optional 1-GB compact flash disk. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/routers/12000/12012/maintenance/guide/11656prp.html

New Software Features in Cisco IOS Release 12.0(30)S

This section describes new and changed features in Cisco IOS Release 12.0(30)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(30)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Any Transport over MPLS (AToM) Sequencing Support

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fsatom30.htm

ATM VC Class Support

Platform: Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fsatom28.htm

Any Transport over MPLS (AToM): Layer 2 QoS (Quality of Service)

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/12sl2qos.html

AToM: Remote Ethernet Port Shutdown

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/12s_resd.htm

Back-to-Back VRF Support for MPLS-VPNs over IP Tunnels

Platform: Cisco 12000 series

The Back-to-back VRF support for the MPLS-VPNs over IP Tunnels feature enables provider edge (PE) routers from separate service provider networks to exchange VRF routes that are sourced from the other provider network. In this configuration scenario, the edge router in the source provider network functions as the PE router, and the edge router in the receiving provider network functions as the customer edge (CE) router. The routing protocols supported in the PE to CE Virtual Private Network (VPN) configuration are eBGP, EIGRP, OSPF, RIP, and static routing.

Distributed Control Plane Policing

Platform: Cisco 12000 series

For detailed information about this feature, see the Control Plane Policing document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/gtrtlimt.htm

Disabling the RP Layer 3 Cache

Platform: Cisco 12000 series

For detailed information about this feature, see the Performance Route Processor (PRP) Software Configuration document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/prp.htm

IEEE 802.17 RPR Enhancements

Platform: Cisco 10720

For detailed information about the enhancements to the IEEE 802.17 RPR feature, see the IEEE 802.17 Resilient Packet Ring Feature Guide:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/rprswg.htm

For additional information, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

Inter-AS Support for Multicast VPN

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

The Inter-AS Support for Multicast VPN feature provides support for multiple autonomous systems (ASs) within a domain and support for VPNs that span multiple provider networks.

L2TPv3 Digest Secret Graceful Switchover

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/l2tpv30s.htm

Layer 2 Local Switching

Cisco IOS Release 12.0(30)S supports the following Layer 2 local switching features:

Layer 2 Local Switching—ATM to ATM
Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

Layer 2 Local Switching—ATM to ATM with Cell Packing
Platform: Cisco 12000 series

Layer 2 Local Switching—Same-Port Switching for ATM
Platform: Cisco 12000 series

Layer 2 Local Switching—Same-Port Switching for Ethernet VLAN
Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

Layer 2 Local Switching—Same-Port Switching for Frame Relay
Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about these features, see the Layer 2 Local Switching document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fslocal.htm

L2VPN Interworking

Platform: Cisco 12000 series

L2VPN Interworking: Ethernet to VLAN Interworking

L2VPN Interworking: Ethernet VLAN to ATM AAL5 Interworking

L2VPN Interworking: Ethernet VLAN to Frame Relay Interworking

L2VPN Interworking: Frame Relay to ATM AAL5 Interworking

For detailed information about these features, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsinterw.htm

Link Protection for GE Interface

Platform: Cisco 12000 series

For detailed information about this feature, see the MPLS Traffic Engineering (TE): Link and Node Protection with RSVP Hellos Support document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fslnph30.htm

Loopback Mode Detection Through OAM

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/lmd_oam.htm

Maximum Mask Aggregate Output NetFlow

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/maxmnf.htm

MPLS CoS Transparency Explicit Null Enhancements

Platform: Cisco 12000 series

MPLS Pipe Mode CoS Transparency enables an Internet Service Provider (ISP) to offer differentiated services to its customers and still preserve the internal Quality of Service (QoS) policies of its customers.

The explicit null enhancements for Cisco 12000 series Engine 3 line cards include the following:

Explicit null labels over MPLS VPN labels in the fast path

Explicit null labels over MPLS VPN deaggregate labels in the fast path

Explicit null labels over AToM labels in the fast path

Explicit null labels over MPLS VPN IPv6 labels in the fast path

MPLS Label Distribution MIB: MPLS LDP Trap Enhancement

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the MPLS Label Distribution Protocol MIB document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ldpmib13.htm

MPLS LDP Autoconfiguration

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fsldpaut.htm

MPLS LDP IGP Synchronization

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fsldpsyn.htm

MPLS LDP Session Protection

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fssespro.htm

MPLS Traffic Engineering (TE)—Fast Tunnel Interface Down Detection

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the MPLS Traffic Engineering (TE): Link and Node Protection with RSVP Hellos Support document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fslnph30.htm

MPLS Traffic Engineering (TE)—Path Protection

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_te_path_prot.html

MPLS VPN-MIB Support: MPLS VPN Trap Enhancement

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the MPLS VPN—MIB Support document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/fsvnmb25.htm

MPLS VPNs over IP Tunnels

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/csgl3vpn.htm

Multilink Frame Relay (FRF.16.1)

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/fs_mfr.htm

Multi Router APS on ISE ATM Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/12smraps.htm

Native L2TPv3 Tunneling

Platform: Cisco 12000 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/l2tpv30s.htm

OAM Segment Endpoint

Platforms: Cisco 7200 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/12soamse.htm

On-Board Failure Logging

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/12sobfl.htm

OSPF Sham-Link MIB Support

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/ospfslms.htm

PIM RPF Vector

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http:www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/pimrpfvr.htm

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet and Frame Relay Services

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/gspwe3fr.htm

PXF Accelerated IPv6 Quality of Service

Platform: Cisco 10720

For detailed information about this feature, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

QoS: Match ATM OAM

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/gsatmoam.htm

QoS: ATM CLP Queue-Limit

Platform: Cisco 12000 series

For detailed information about this feature (also referred to as QoS: ATM CLP-Based Queue Limit), see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/12sqatcl.htm

SNMP over IPv6

Platform: Cisco 12000 series

For detailed information about this feature, see the "Managing Cisco IOS Applications over IPv6" chapter in the Cisco IOS IPv6 Configuration Library:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_mgev6.htm

VLAN ID Rewrite

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fsatom28.htm

New Hardware and Software Features in Cisco IOS Release 12.0(29)S1

There are no new hardware or software features in Cisco IOS Release 12.0(29)S1.

New Hardware Features in Cisco IOS Release 12.0(29)S

This section describes new and changed features in Cisco IOS Release 12.0(29)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(29)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.


Note Cisco IOS Release 12.0(29)S does not support the Cisco 10000 series edge services routers and the Cisco 12000 series Internet routers.


Dual-Mode IEEE 802.17 RPR/SRP Uplink Module

Platform: Cisco 10720

For information about IEEE 802.17 RPR/SRP support via the new Dual-Mode IEEE 802.17 RPR/SRP uplink module, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

New Software Features in Cisco IOS Release 12.0(29)S

This section describes new and changed features in Cisco IOS Release 12.0(29)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(29)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.


Note Cisco IOS Release 12.0(29)S does not support the Cisco 10000 series edge services routers and the Cisco 12000 series Internet routers.


Any Transport over MPLS (AToM) Sequencing Support

Platform: Cisco 7200 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/fsatom30.htm

ATM Cell Packing over L2TPv3

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/l2tpv29s.htm

ATM Port Mode Cell Relay over L2TPv3

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/l2tpv29s.htm

ATM PVC Bundle Enhancement - MPLS-EXP Based PVC Selection

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/12satmvc.htm

AToM Graceful Restart

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fsgratom.htm

BGP Multicast IAS VPN

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/cs_bmiav.htm

BGP Support for Fast Peering Session Deactivation

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/cs_bsfda.htm

BGP Support for IP Prefix Import from Global Table into a VRF Table

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_14/gt_bgivt.htm

BGP Support for Next-Hop Address Tracking

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_14/gt_bnht.htm

Control Plane Policing

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/gtrtlimt.htm

EIGRP Prefix Limit Support

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/cs_epls.htm

IEEE 802.17 RPR

Platform: Cisco 10720

For detailed information about this feature, see the IEEE 802.17 Resilient Packet Ring Feature Guide:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/rprswg.htm

For additional information, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

Enabling OSPFv2 on an Interface Using the ip ospf area Command

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/ospfarea.htm

IS-IS Support for an IS-IS Instance per VRF for IP

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/vrf_isis.htm

L2TPv3 Control Message Hashing

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/l2tpv29s.htm

L2TPv3 Control Message Rate Limiting

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/l2tpv29s.htm

MPLS LDP Graceful Restart

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fsgr29s.htm

MPLS Traffic Engineering - AutoTunnel Mesh Groups

Platforms: Cisco 7200 series, Cisco 7500 series

This feature now supports Interior Gateway Protocol (IGP) flooding of AutoTunnel mesh groups. For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/gsamg2.htm

MPLS Traffic Engineering - Class-Based Tunnel Selection

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/gscbts.htm

MPLS Traffic Engineering - Inter-AS TE

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/gsintast.htm

MPLS Traffic Engineering - RSVP Graceful Restart

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/ha/configuration/guide/ha-mpls_rsvp_grrs.html

MPLS Traffic Engineering - RSVP Hello State Timer

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/gsrsvpht.htm

MPLS Traffic Engineering: Shared Risk Link Groups (SRLG)

Platforms: Cisco 7200 series, Cisco 7500 series

Support for OSPF was added to this feature. For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fs29srlg.htm

MPLS VPN - Loadbalancing Support for Inter-AS and CSC VPNs

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following three documents:

MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fscscleb.htm

MPLS VPN—Inter-AS—IPv4 BGP Label Distribution:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fsiasleb.htm

MPLS VPN—Interautonomous System Support:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fsiaseb.htm

Multicast Fast Switching Performance Improvement

Platform: Cisco 7200 series

The Multicast Fast Switching Performance Improvement feature provides improvement of up to 100 percent of the existing multicast path packet throughput. This feature targets software forwarding-based platforms for IPv4 multicast only.

Multicast VPN MIB

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/mcvpnmib.htm

N*DS0 BERT Support on PA-MC-8TE1+

Platforms: Cisco 7200 series, Cisco 7500 series

The N*DS0 bit error rate tester (BERT) capability allows BERT to run on a per channel-group/time-slot basis at a specified speed. PA-MC-8TE1+ is a single-width 8-port T1/E1 multichannel port adapter for the Cisco 7200 and Cisco 7500 series. Prior to this feature, BERT on the PA-MC-8TE1+ port adapter was enabled on all the channel groups/time slots.

New keywords have been added to the bert pattern interval command. Use the new timeslots and speed keywords with their associated arguments to specify the channel group/time slot and speed.

[no] bert pattern pattern interval time timeslots slot-number speed speed

The slot-number argument is in the range from 1 to 24 for a T1 line, and in the range from 1 to 31 for an E1 line. The speed argument can be either 56 kbps or 64 kbps, and the default is 64 kbps.

The show controllers e1 command and the show controllers t1 command will include time-slot and speed information for BERT only if either of the time-slot or speed arguments is not set to the default.

Protocol Demultiplexing for L2TPv3

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/l2tpv29s.htm

Pseudowire Emulation Edge-to-Edge MIBs for Ethernet Services

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/gspwe3mb.htm

Random Sampled NetFlow

Platform: Cisco 10720

For detailed information about this feature, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/
10720.htm

New Hardware and Software Features in Cisco IOS Release 12.0(28)S1 to Cisco IOS Release 12.0(28)S6

There are no new hardware or software features in Cisco IOS Release 12.0(28)S1 to Cisco IOS Release 12.0(32)S6.

New Hardware Features in Cisco IOS Release 12.0(28)S

This section describes new and changed features in Cisco IOS Release 12.0(28)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(28)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

NPE-G1

Platform: Cisco 7200 VXRrouters

The NPE-G1 is the first network processing engine for the Cisco 7200 VXR routers to provide the functionality of both a network processing engine and an I/O controller. If used without an I/O controller, an I/O blank panel must be in place.

While its design provides I/O controller functionality, it can also work with any I/O controller supported in the Cisco 7200 VXR routers. When installed with an I/O controller, the NPE-G1provides the primary input/out functionality; that is, the NPE-G1 input/out functionality enhances that of the existing I/O controller.

The NPE-G1 maintains and executes the system management functions for the Cisco 7200 VXR routers and also holds the system memory and environmental monitoring functions.

The NPE-G1 consists of one board with multiple interfaces. It is keyed so that it can be used only in the Cisco 7200 VXR routers.

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/npense/4448o5.htm

New Software Features in Cisco IOS Release 12.0(28)S

This section describes new and changed features in Cisco IOS Release 12.0(28)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(28)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

ATM AAL5 over L2TPv3

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature (also referred to as "ATM AAL5 SDU Mode over L2TPv3" and "OAM Cell Support"), see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/l2tpv328.htm

ATM Conditional Debug Support

Platform: Cisco 7200 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12satmdb.htm

ATM OAM AIS-RDI Monitoring

Platform: Cisco 10000 series, Cisco 10720

The ATM OAM AIS-RDI Monitoring feature extends the existing ATM virtual circuit Operation, Administration, and Maintenance (OAM) functionality to include monitoring of the Alarm Indication Signal-Remote Defect Indication (AIS-RDI). Once the feature is enabled, OAM AIS-RDI is monitored on the virtual circuit (VC).

If the number of consecutive OAM AIS-RDI cells received is greater than a configurable number, the VC is brought down. The VC is brought up when there are no OAM AIS-RDI cells received within a configurable interval.

Use the oam ais-rdi command to specify the number of consecutive OAM AIS-RDI cells that are to be received before the permanent virtual circuit (PVC) is brought down. The no form of the command returns the OAM AIS-RDI function to the default configuration.

[no] oam ais-rdi [down-count [up-count]]

The down-count argument is the number of consecutive OAM AIS-RDI cells received. The range is from 1 to 60, and the default is 1 OAM AIS-RDI cell.

The down-count argument is the number of consecutive OAM AIS-RDI cells received. The range is from 1 to 60, and the default is 1 OAM AIS-RDI cell.

The up-count argument is the number of seconds that are allowed to elapse with no OAM AIS-RDI cells received. The range is from 3 to 60 seconds, and the default is 3.

ATM VC Bundles to MPLS VRF

Platform: Cisco 12000 series

The ATM VC Bundles to MPLS VRF feature is an extension of the IP-to-ATM Class of Service feature suite. The IP to ATM Class of Service feature suite, using virtual circuit (VC) support and bundle management, maps quality of service (QoS) characteristics between IP and ATM. It provides customers who have multiple VCs (with varying qualities of service to the same destination) with the ability to build a QoS differentiated network.

The ATM VC Bundles to MPLS VRF feature enables use Multiprotocol Label Switching (MPLS) VPN routing and forwarding (VRF) as an additional selection criteria for packet forwarding. When a provider edge device learns an IP prefix from a customer edge device, it will assign a label to this route. All traffic with that prefix will now be mapped to this VPN label. This works with ATM bundles because the IP prefix associated with the bundle is used to create the VPN label. VPN forwarding takes place just as it does for nonbundled interfaces. The only difference is at the PE, when it switches to the bundle interface in the MPLS-to-IP path. At that point it uses the different VCs for the different precedence traffic as listed in its member adjacency table.

To enable ATM VC bundles to MPLS VRF, use the ip vrf command. The following example creates the VPN bundle on interface ATM0.35:

interface ATM0.35 point-to-point

ip address 10.10.10.10 255.255.255.252

ip vrf forwarding bundle_vpn

bundle vipnet

encapsulation aal5snap

oam-bundle manage 5

pvc-bundle 0/36

vbr-nrt 512 300

service-policy output data

precedence other

pvc-bundle 0/35

cbr 171

service-policy output voice

precedence 5

ATM VC Single Cell Relay over L2TPv3

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the "ATM VCC Cell Relay Mode" section in the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/l2tpv328.htm

AToM VC Mode Single Cell Relay Support for PA-A3-OC12 PA

Platform: Cisco 7500 series

The AToM VC Mode Single Cell Relay feature (also referred to as ATM Single Cell Relay: VC Mode) is now supported on the PA-A3-OC12 port adapter. For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fsatom28.htm

CNS Interactive CLI

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series

Network management applications can use Cisco Networking Services (CNS) agents to manage network routers. The CNS exec agent provides the capability to send commands to a router from a programmable source. The CNS Interactive CLI feature introduces a new XML interface that allows you to send interactive commands to a router, such as commands that generate prompts for user input. A benefit of this feature is that interactive commands can be aborted before they have been fully processed. For example, for commands that generate a significant amount of output, the XML interface can be customized to limit the size of the output or the length of time allowed for the output to accumulate. The capability to use a programmable interface to abort a command before its normal termination (similar to manually aborting a command) can greatly increase the efficiency of diagnostic applications that might use this functionality. The new XML interface also allows for multiple commands to be processed in a single session. The response for each command is packaged together and sent in a single response event.

Distributed ATM OAM Support (dOAM)

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sfrcdb.htm

Frame Relay Scalability Conditional Debug Support

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fmconde.htm

FRF.1.2 Annex A support

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

The FRF.1.2 Annex A Support feature is also known as Local Management Interface (LMI) segmentation and supports an enhancement to the Frame Relay LMI protocol where LMI full status messages are segmented because MTU constraints or large numbers of permanent virtual circuits (PVCs). This feature is useful when the MTU size cannot be increased but is insufficient to accommodate the large number of PVCs on the link. During Frame Relay internetworking with other Layer 2 protocols, the MTUs on each interface must match. In software without the FRF.1.2 Annex A Support feature, users cannot change the MTU size on the Frame Relay side and place all the PVC data into one LMI packet. With the FRF.1.2 Annex A Support functionality, this problem is solved.

The FRF.1.2 Annex A standard adds a new message type "Full status continued" to an LMI packet. When a DCE determines that it cannot fit all PVCs into one packet (enforced by the MTU size), the message type is set to "Full status continued." The DTE responds to "Full status continued" messages sent to this packet immediately instead of waiting for the T391 timer to expire. The DCE sends the remaining PVCs in one or more "Full status continued" messages until all the remaining PVCs can fit into one message. At this point, a normal "Full status" message is sent.

If the DTE receives a "Full status" or "Full status continued" STATUS message in response to a "Full status continued" STATUS ENQUIRY message, this exchange indicates a lower-valued data-link connection identifier (DLCI) than the previous "Full status continued" STATUS message and is considered to be an error event and PVC information elements (IEs) will not be processed. The next time the T391 timer expires, the "Full status" STATUS ENQUIRY procedure is reinitiated.

This feature follows the FRF1.2 implement agreement [1] and allows the Cisco IOS software to be compliant with the FRF1.2 standard. The implementation is platform-independent and applies to all platforms running Cisco IOS software that support Frame Relay. This feature interoperates only with existing Cisco IOS software releases where all PVCs can be reported in one packet. A router running the new functionality must be able to interoperate with routers running existing Cisco IOS software releases and with routers that support the new functionality using the continuation status request and reply frames. Only LMI types Q.933A and ANSI support the FRF.1.2 Annex A standard.

You can track "Full status continued" packets using the debug frame-relay lmi privileged EXEC command. An extra field, 04, has been added to the display output. The following example indicates where in the report to look for this field (text in bold for purpose of example):

17:42:39: Serial1(out): StEnq, myseq 126, yourseen 125, DTE up

17:42:39: datagramstart = 0x40058DA4, datagramsize = 13

17:42:39: FR encap = 0x00010308

17:42:39: 00 75 51 01 04 53 02 7E 7D

The string segment "active/inactive" in the show interface commands indicates whether the FRF.1.2 Annex A standard is triggered. The report indicates active when routers receive the "Full status continued" message; otherwise, the report indicates inactive.

Hardware CEF Resiliency on Cisco 12000 Series Engine 2 and ISE Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the Cisco Express Forwarding document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s15/cefcon.htm

IPv6 BSR

Platform: Cisco 12000 series

For detailed information about this feature, see the Implementing IPv6 Multicast document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_mcast.htm

L2TPv3 Distributed Sequencing

Platform: Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/l2tpv328.htm

L2TPv3 Support for PA-A3-8T1IMA PA and PA-A3-8E1IMA Port Adapters

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/l2tp328.htm

Layer 2 Protocol Tunneling

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/l2pt.htm

Low Latency Queueing with Priority Percentage Support

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sllqpc.htm

MPLS COS Multi-VC Mode

Platform: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10kfm/multiVC.htm

MPLS Traffic Engineering: Shared Risk Link Groups (SRLG)

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fssrlgis.htm

MPLS VPNs over IP Tunnels

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fssrlgis.htm

Multilink Frame Relay over L2TPv3/AToM

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fsmfrl2.htm

Multilink Frame Relay Stateful Switchover

Platform: Cisco 12000 series

For detailed information about this feature, see the Stateful Switchover document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s20/fssso20s.htm

Packet Classification Using the Frame Relay DLCI Number

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sdlci.htm

PIM Dense Mode Fallback Prevention in a Network Following RP Information Loss

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtautorp.htm

Policy Based Routing: Recursive Next Hop

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature (also referred to as PBR Recursive Next Hop), see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12s_pbr.htm

Port Mode Cell Relay Support

Platforms: Cisco 7200 series, Cisco 7500 series

The Port Mode Cell Relay Support feature consists of the following two features:

Port Mode Cell Relay Support for PA-A3-8T1 IMA PA and PA-A3-8E1 IMA PA

Port Mode Cell Relay Support for PA-A3-T3, PA-A3-E3, and PA-A3-OC3 PAs

For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fsatom28.htm

PPP/MLP MRRU Negotiation Configuration

Platform: Cisco 7200 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gtmpmrru.htm

Quality of Service (QoS) Features

QoS for IPv6

Platform: Cisco 12000 series

Starting in Cisco IOS Release 12.0(28)S, the following quality of service (QoS) features are supported in IP version 6 (IPv6) environments on IP Service Engine (ISE) line cards:

Packet classification

Traffic shaping

Traffic policing

Packet marking/remarking

Queueing

WRED-based drop


Note QoS policy propagation through the Border Gateway Protocol (QPPB) is not supported.


These IPv6 QoS features are supported only in hardware-based fast-path forwarding on ISE line cards. IPv6 QoS is not supported in slow-path forwarding.

IPv6 QoS is not supported on the following ISE line cards:

1-port channelized OC-12/STM-4 (DS1/E1)

2-port OC-12/STM-4 DPT

4-port OC-12/STM-4 ATM

All of the QoS features available for IPv6 environments are managed from the modular QoS CLI (MQC). The MQC is a command-line interface that allows you to define traffic classes, create and configure traffic policies (policy maps), and then attach those traffic policies to interfaces. For detailed information about how to use the MQC, see the Cisco IOS Quality of Service Solutions Configuration Guide, Release 12.3, at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/qos_vcg.htm

In addition to the existing MQC commands supported on the Cisco 12000 series Internet router, the following new and modified commands are also supported on ISE line cards in class-map configuration mode:

match protocol {ip | ipv6}

Specifies whether the IPv4 or the IPv6 protocol is to be used as match criteria for a traffic class. If you do not use the match protocol command, the traffic class matches both IPv4 and IPv6 packets.

match access-group name ipv6-access-group

Specifies the name of an IPv6 access list against whose contents packets are checked to determine if they belong to the traffic class.

match [ip] dscp dscp-value
match [ip] precedence precedence-value

Specifies a differentiated services code point (DSCP) or IP precedence value to be used as match criteria to classify packets in a traffic class.

If you specify the ip keyword, the IP precedence or DSCP value is used to match only IPv4 packets in a traffic class. If you do not specify the ip keyword, the IP precedence or DSCP value is used to match both IPv4 and IPv6 packets.


Note The IP DSCP value is the first six bits in the ToS byte, while the IP precedence value is the first three bits in the ToS value. The IP precedence value is actually part of the IP DSCP value. Therefore, both values cannot be matched simultaneously. If both values are set simultaneously, the packet is matched with the IP DSCP value.


The following modified command is supported on ISE line cards in policy-map configuration mode:

set [ip] dscp dscp-value
set [ip] precedence precedence-value

Sets the DSCP or IP precedence value in packet headers for a specified traffic class. Once the DSCP or IP precedence bits are set, other QoS services such as Weighted Random Early Detection (WRED) then operate on the bit settings.

The ip keyword is optional and supports backward compatibility with the IPv4 QoS commands. The set [ip] dscp and set [ip] precedence commands apply to both IPv4 and IPv6 traffic whether you enter the ip keyword or not.


Note The set precedence command cannot be used with the set dscp command to mark the same packet. The two values, DSCP and precedence, are mutually exclusive. A packet can have one value or the other, but not both.


For information about how to configure and use IPv6 QoS features, see "Implementing QoS for IPv6 for Cisco IOS" in the Cisco IOS IPv6 Configuration Library at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_qosv6.htm

QoS: ATM-CLP and L2-COS Based WRED

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12swred.htm

QoS: ATM Cell-Based Policer

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fscbp.htm

QoS: Classification of Locally Sourced Packets

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sclocp.htm

QoS: Enhancements to Single QoS Policy Definition for a Physical Interface (L3/1C/nD) Including Match FR DLCI

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sl31dd.htm

QoS: Enhancement to Sub-interface QoS Policy Definitions (L3/nC/nD) Including Proportional Bandwidth Allocation

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sl3ncd.htm

QoS: Implicit Queue Limit

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12simql.htm

QoS: L2 Overhead Specification for Shaping and Policing Parameters for Ethernet

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12sl2os.htm

QoS: Match on ATM CLP

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12smcatm.htm

QoS: Percentage-Based Policing

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature (including the QoS: Time-Based Parameters for Policing feature) see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12spctpg.htm

QoS: Percentage-Based and Time-Based Policing Parameters

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12spbtbp.htm

QoS: Percentage-Based Shaping

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature (including the QoS: Percentage-Based Shaping Parameters feature), see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12spctsg.htm

QoS: Time-Based Thresholds for WRED and Queue Limit

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12swrdql.htm

QoS: Time-Based Thresholds for WRED and Queue Limit for the Cisco 12000 Series Router

Platforms: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12stbwr.htm

QoS: Tunnel Marking for L2TPv3 Tunnels

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12stnlmk.htm

Scalability Enhancements on Cisco 12000 Series 4-Port ATM ISE Line Cards

Platform: Cisco 12000 series

The Cisco 12000 series router, 4-port OC-3c/STM-1 and 4-port OC-12c/STM-4c ATM IP Services Engine (ISE) line cards are enhanced so that quality of service (QoS) policy maps applied to virtual circuits (VCs) can optimize their use of Ternary Content Addressable Memory (TCAM) space. This enhancement provides the following performance improvements:

Reduction in the number of TCAM entries required, as individual TCAM entries are used for multiple VCs.

Reduction in the amount of Route Processor (RP) memory.

Reduction of overall merge time for TCAM entries.

Prior releases of the software provided for sharing of policy maps between VCs if all classes in the policy map could be shared. This greatly limited the use of the sharing, because if even one class in the policy map could not be shared, the entire policy map was unshared. This enhancement provides for sharing of individual classes between VCs.

When classes in a policy map are shared between VCs, the amount of TCAM space can be reduced in proportion to the number of VCs that use these classes. In many cases, this greatly reduces the amount of TCAM space required to store QoS policy maps applied to VCs.

Route Processor (RP) memory is reduced in proportion to the number of VCs that have shared classes. This is because a single instance of each class is stored on the RP and is used by all VCs on a line card that are configured with the same class.

In addition, the overall merge time for TCAM entries on all VCs that are configured with the same policy map in the same (ingress or egress) direction is reduced in proportion to the number of VCs using these TCAM entries.

A class in a policy map is shared, except in the following instances:

The class is part of a policy map that uses percentage-based policing. In this instance, all classes in the policy map are unshared between VCs with different available bandwidths. For more information on percentage-based policing, see QoS: Percentage-Based Policing at http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12spctpg.htm.

The class is part of an ingress policy map that contains at least one shape command. In this instance, all classes in the policy map are unshared.

The class contains at least one police statement.

Restriction

QoS statistics for shared classes, other than class-default, are available only on an egress traffic policy when the shared class has a bandwidth or priority command defined in the policy map. This is a result of the optimization of TCAM resources. Otherwise, the shared classes have no matched per-class statistics by default. QoS statistics will be available for class-default on an egress traffic policy if all of the other classes in the policy map have priority or bandwidth command defined for them or if class-default is unshared.

QoS statistics for shared classes are not available on an ingress traffic policy.

For a shared class in which QoS statistics are not available, you can disable the sharing and the optimization of TCAM entries for this class and thereby enable the QoS statistics. To enable QoS statistics for a traffic class in a shared class, it is recommended that you add a police command to the traffic class and configure the cir (committed information rate) parameter to its maximum value and the conform-action and exceed-action parameters as a transmit action. QoS statistics that were previously unavailable for a traffic class will now be displayed, however the class will be unshared. This applies to class-default as well.

The command syntax of the police (two rates) command is as follows:

Router(config-pmap-c)# police cir {cir_bps | percent cir_per} [bc conform-burst] {pir pir_bps} [be peak-burst] [conform-action action [exceed-action action [violate-action action]]]

For more information about the police command syntax, see the "police (two rates)" section at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/qos_r/qos_o1g.htm#1084420.

Stacked VLAN Processing

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/qinq.htm

Transparent Layer 2 Protocol Tunneling and Layer 2 PDU Filtering

Platform: Cisco 12000 series

For detailed information about this feature (also referred to separately as the Transparent Layer 2 Protocol Tunneling feature and the Layer 2 PDU Filtering feature), see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/l2pt.htm

Upgrade Secondary ROMmon CLI

Platform: Cisco 7200 VXR routers

For detailed information about this procedure, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12s28fur.htm

VP/VC Mode Packed Cell Relay Support

Platforms: Cisco 7200 series, Cisco 7500 series

The VP/VC Mode Packed Cell Relay Support feature (also referred to as ATM Packed Cell Relay: VP and VC Modes) is now supported on the PA-A3-8E1 IMA and PA-A3-8T1 IMA port adapters. For detailed information about this feature, see the Any Transport over MPLS document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/fsatom28.htm

New Hardware and Software Features in Cisco IOS Release 12.0(27)S1 to Cisco IOS Release 12.0(27)S5

There are no new hardware or software features in Cisco IOS Release 12.0(27)S1 to Cisco IOS Release 12.0(27)S5.

New Hardware Features in Cisco IOS Release 12.0(27)S

This section describes new and changed features in Cisco IOS Release 12.0(27)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(27)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card

Platform: Cisco 12000 series

There are no commands specific to the Cisco 1-port Channelized OC-12/STM-4 (DS1/E1) line card in Cisco IOS Release 12.0(27)S.

For detailed information about this feature, see the following documents:

1-Port Channelized OC-12c/STM-4c (DS1/E1) ISE Line Card Installation and Configuration at

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_chan/13921c12.htm

Cisco IOS Software Configuration for the Cisco 12000 Series 1-port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card at

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/12_0s/index.htm

2-Port OC-192c/STM-64 Packet over SONET Line Card

Platform: Cisco 12000 series

There are no commands specific to the Cisco 2-port OC-192c/STM-64 Packet over SONET line card in Cisco IOS Release 12.0(27)S.

For detailed information about this feature, see the following documents:

2-Port OC-192c/STM-64c and 8-Port OC-48c/STM-16c Packet over SONET Line Card Installation and Configuration at

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_pos/16025pos.htm

Cisco IOS Software Configuration for the Cisco 12000 Series Router 2-Port OC-192c/STM-64 Packet over SONET Line Card at

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/12_0s/index.htm

2-Port Packet over SONET OC3c/STM1 Port Adapter

Platforms: Cisco 7200 series, Cisco 7500 series

The 2-port Packet over SONET OC3c/STM1 port adapter (PA-POS-2OC3) provides two Packet-over-SONET (POS) ports in a single port adapter slot. The two ports function either as dual independent OC-3c/STM1 ports or as a single port with automatic protection switching (APS). The PA-POS-2OC3 is used as a direct connection between the supported router or switch and external networks.

For more information about the PA-POS-2OC3, see the Cisco documents at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/portadpt/sonet_pa/3028_2oc/index.htm

4-Port OC-3/STM-1 ATM ISE Line Card

Platform: Cisco 12000 series

If you configure a virtual circuit (VC) on a 4-Port OC-12/STM-4 ATM ISE interface with a peak cell rate (PCR) or sustainable cell rate (SCR) greater than OC-6 (using the ubr, vbr-nrt, vbr-rt, or cbr commands), and attach a service policy with MDRR (configured using the bandwidth command) to the interface for specified traffic classes, when traffic on the interface from the specified classes is equal to or greater than the configured PCR or SCR values, frequent queuing and dequeueing changes occur between the MDRR queues, which may result in decreased VC throughput. For more information about how to create a service policy and attach it to an interface, see the Modular Quality of Service Command-Line Interface at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/mcli.htm

8-port OC-48c/STM-16 Packet over SONET Line Card

Platform: Cisco 12000 series

There are no commands specific to the Cisco 8-port OC-48c/STM-16 Packet over SONET line card in Cisco IOS Release 12.0(27)S.

The Cisco 8-Port OC-48 POS line card, in conjunction with 40 Gbps per slot Cisco 12800 routers, achieves up to 50 Mpps per slot of forwarding capacity. It is fully interoperable with all existing Cisco 12000 series line cards.

The Cisco 8-Port OC-48 POS line card features a dedicated Layer 3 forwarding engine that offers a comprehensive IP/MPLS feature set, including advanced quality of service (QoS), accounting (sampled NetFlow), security and traffic control, and committed access rate (CAR)—all at 50 Mpps. The line card supports more than one million prefixes, up to 256,000 multicast groups, and more than 32,000 lines of access control lists (ACLs), both ingress and egress, at wire speed.

The Cisco 8-Port OC-48 POS line card is equipped with third-generation pluggable optics for improved component integration, power consumption, and maximum versatility. It is fully interoperable with standard OC-48c and STM-16c optical interfaces. Available pluggable optics include short reach (SR), intermediate reach (IR), and long reach (LR); optics of different types can be combined.

Cisco 12000 Series Routers Upgradeable Fabric

Platforms: Cisco 12006 and Cisco 12010 Routers with 2.5-Gbps Switch Fabric

In Cisco IOS Release 12.0(27)S, two new chassis models that use a 2.5-Gbps switch fabric are introduced in the Cisco 12000 series: Cisco 12006 and Cisco 12010 routers. The switch fabric consists of a clock scheduler card (CSC) and a switch fabric card (SFC). Each SFC or CSC provides a 2.5-Gbps full-duplex connection to each line card in the router.


Note Although you may install line cards that require more than 2.5 Gbps of bandwidth in a Cisco 12006 or Cisco 12010 router, the line cards are held in a disabled state.


For information about how to install and use the 2.5-Gbps switch fabric, see the following documents:

Cisco 12006 and Cisco 12406 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions

Cisco 12010, Cisco 12410, and Cisco 12810 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions

New Software Features in Cisco IOS Release 12.0(27)S

This section describes new and changed features in Cisco IOS Release 12.0(27)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(27)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

ATM Cell Relay, Cell Packing over MPLS

Platform: Cisco 12000 series

For detailed information about this feature, see the following documents:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fsatom27.htm

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/4atm_ise.htm

ATM Port Mode Packed Cell Relay over MPLS

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fsatom27.htm

ATM VP Shaping, NNI, and Port Mode Cell Packing for Cisco 12000 Series Routers

Platform: Cisco 12000 series

For detailed information about this feature, see the following documents:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fsatom27.htm

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/4atm_ise.htm

BGP Cost Community Support for EIGRP MPLS VPN PE-CE with Backdoor Links

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/s_bgcce.htm

BGP Support for Dual AS Configuration for Network AS Migrations

Platforms: Cisco 7200 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/fsbgpdas.htm

Bridging Support for FE ports on the Cisco 10720 4GE+8FE module

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

BGP Support for TTL Security Check

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http:www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/fsxebtsh.htm

Binding L2TPv3 Sessions to MLFR Interfaces on E0 Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/l2tpv325.htm#1136637

DiffServ Compliant Weighted Random Early Detection

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

Dynamic Time Slot Configuration

Platform: Cisco 10000 series

The Dynamic Time Slot Configuration feature automatically reconfigures an existing channel group with different time slot allocations. You no longer are required to remove and recreate the channel group with the desired allocation.

On the Cisco 10000 router, you can create channel groups using available time slots on the following channelized line cards:

Channelized T3

Channelized OC-12

Channelized STM-1

Channelized E1/T1

In previous releases, once you configure channel groups, you cannot modify their time slot allocations without first deleting the channel group. After recreating the channel group with the different time slot allocations, you then recreate the interface and subinterfaces associated with the channel group.

The Dynamic Time Slot Configuration feature eliminates the requirement for manual reconfiguration. Instead, the reconfiguration of time slots on channelized line cards occurs automatically.

EBGP Label Distribution

Platform: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/routers/10000/10008/configuration/guides/qos/qoscf.html

EIGRP MPLS VPN PE-CE Site of Origin (SoO)

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/s_mvesoo.htm

Enhanced RED Statistics

Platform: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/routers/10000/10008/configuration/guides/qos/qoscf.html

Fast-Flooding IS-IS LSPs Using the fast-flood Command

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fstfld.htm

Frame Relay over L2TPv3 QoS on E0 Line Cards

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/l2tpv325.htm

Integrated IS-IS Global Default Metric

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtisglob.htm

Integrated IS-IS Protocol Shutdown Support Maintaining Configuration Parameters

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtisprot.htm

IPv6 Multicast on Cisco 12000 Series Line Cards

Platform: Cisco 12000 series

In Cisco IOS Release 12.0(27)S, IPv6 Multicast is supported on all Cisco 12000 series line cards, except for the following line cards that will not support IPv6 Multicast:

Engine 1:

8-port Fast Ethernet

1-port Gigabit Ethernet

Engine 2:

3-port Gigabit Ethernet


Note Note: The 1-port CHOC12-DS1 line card does not support IPv6 or IPv6 Multicast in Cisco IOS Release 12.0(27)S.


For more information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_mcast.htm

IPv6 Provider Edge Router over MPLS (Cisco 6PE) Enhancement

Platform: Cisco 12000 series

On an IPv6-enabled provider edge (6PE) Cisco 12000 Series Internet Router, when the edge-facing line card is IP Services Engine (ISE) and the core-facing line card is Engine 4 or Engine 4+, disposition performed on 6PE-labeled packets has been accelerated. The acceleration is possible because 6PE-label disposition is now performed on the hardware of the edge-facing ISE line card instead of on the CPU of the core-facing Engine 4 or Engine 4+ line card.

The acceleration applies only to IPv6 6PE-labeled packets. Aggregate 6PE label disposition has not been accelerated, and remains bound by the CPU forwarding performance on the core-facing Engine 4 or Engine 4+ line card.

No new or modified Cisco IOS software commands are introduced with this feature.

IS-IS Local RIB Support for Redistributed Routes

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/isredrib.htm

Layer 2 Local Switching—ATM to ATM

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fslocal.htm

Layer 2 Local Switching—ATM to Ethernet

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fslocal.htm

Layer 2 Local Switching—ATM to Frame Relay

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fslocal.htm

Layer 2 Local Switching—Frame Relay to Frame Relay

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fslocal.htm

L2TPv3 Distributed Sequencing

Platform: Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/l2tpv325.htm

MB RP Memory Support for Cisco 10720 Internet Router

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

MPLS Embedded Management—LSP Ping/Traceroute and AToM VCCV

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/gslsppt.htm

MPLS Traffic Engineering Autotunnel

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/gsautotn.htm

MPLS Traffic Engineering Autotunnel Mesh Groups

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/gsmeshgr.htm

MPLS VPN—eBGP Multipath Support for CSC and InterAS MPLS VPNs

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following documents:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fscscmlp.htm

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fsiasmlp.htm

MPLS VPN—Explicit Null Label Support with BGP IPv4 Label Session

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/gsxnlbsp.htm

MPLS VPN—VPN Aware LDP MIB

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fs27ldp8.htm

MSDP Compliance with IETF RFC 3618

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt_msdp.htm

Multicast Heartbeat

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

The Multicast Heartbeat feature provides a way to monitor the status of IP multicast delivery and be informed when the delivery fails via Simple Network Management Protocol (SNMP) traps. For more information about this feature, see the "Using IP Multicast Heartbeat" section in the chapter "Configuring IP Multicast Routing" in the Cisco IOS IP Configuration Guide, Release 12.3, at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ip_vcg.htm

Multicast State Enhancements for Engine 2 and Engine 3 Line Cards on the Cisco 12000 Series

Platform: Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/mcast.htm

Multicast-VPN: Multicast Support for MPLS VPN

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

Online Offline Diagnostics (OOD)—Field Diagnostics

Platform: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/tblshoot/index.htm

OSPF per-Interface Link-Local Signaling (LLS)

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/ospflls.htm

OSPF Link State Database Overload Protection

Platforms: Cisco 7200 series, Cisco 7500 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/ospfopro.htm

OSPF Support for Unlimited Software VRFs per Provider Edge (PE) Router

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtospfvf.htm

Percent-Based Policing

Platforms: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/config/qos/index.htm

Policy Map Scaling

Platforms: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/config/qos/index.htm

RED with Queue Limit

Platforms: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/config/qos/index.htm

RFC 2495/96 Support for DS1-MIB/DS3-MIB

Platform: Cisco 12000 series

The DS1-MIB and DS3-MIB have been enhanced to include support for new MIB variables and traps, as defined by RFC 2495 and RFC 2496, for the following Cisco 12000 series line cards:

1-Port Channelized OC-12 (DS3)

6-Port Channelized T3 (T1)

6-Port DS3

6-Port E3

12-Port DS3

12-Port E3

The DS1-MIB contains definitions of managed objects for the DS1, E1, DS2, and E2 interfaces, as defined by RFC 2495. The DS3-MIB contains definitions of managed objects for DS3/E3 interfaces, as defined by RFC 2496.

No new or modified Cisco IOS commands are associated with these MIBs. For details on managed objects within the DS1-MIB and DS3-MIB, see the DS1-MIB.my and DS3-MIB.my MIB files. Information on MIBs can be found at MIB Locator.

http://tools.cisco.com/ITDIT/MIBS/servlet/index

Router Security Audit Logs

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtaudlog.html

SNMP over IPv6

Platform: Cisco 12000 series

SNMP can be configured over IPv6 transport so that Cisco IOS devices can be managed from a notification server configured with only IPv6. An IPv6 host can perform SNMP queries and receive SNMP notifications from a device running Cisco IOS IPv6.

The following MIBs are supported for IPv6:

CISCO-FLASH MIB

CISCO-CONFIG-COPY-MIB

CISCO-CONFIG-MAN-MIB

CISCO-DATA-COLLECTION-MIB

EXPRESSION-MIB

ENTITY-MIB

NOTIFICTAION-LOG-MIB

SNMP-TARGET-MIB

see the Cisco IOS Configuration Fundamentals Configuration Guide for detailed information about SNMP, MIBs, and managing Cisco networks in Cisco IOS.

This feature is described in Managing Cisco IOS Applications over IPv6 at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_mgev6.htm

The commands descriptions are located in the Cisco IOS IPv6 Command Reference at this URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_r/index.htm

Source Specific Multicast (SSM)—Mapping

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtssmma.html

SRP—Layer 3 Fast Notification

Platform: Cisco 10720

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

Three-Level Policy Maps

Platforms: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/config/qos/index.htm

Unique Device Identifier (UDI)

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtpepudi.htm

VC Oversubscription

Platforms: Cisco 10000 series

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/config/qos/index.htm

New Hardware and Software Features in Cisco IOS Release 12.0(26)S1 to Cisco IOS Release 12.0(26)S6

There are no new hardware or software features in Cisco IOS Release 12.0(26)S1 to Cisco IOS Release 12.0(26)S6.

New Hardware Features in Cisco IOS Release 12.0(26)S

There are no new hardware features in Cisco IOS Release 12.0(26)S.

New Software Features in Cisco IOS Release 12.0(26)S

This section describes new and changed features in Cisco IOS Release 12.0(26)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(26)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Any Transport over MPLS

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsatom26.htm

ATM PVC Bundle Enhancement—MPLS EXP-Based PVC Selection

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10kfm/atm.htm

APS Stateful Switchover

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/12s_apsm.htm

ATM PVC F5 OAM Recovery Traps

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/26srctrp.htm

BECN and FECN Marking for Frame Relay over MPLS

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsfecn.htm

Byte-Based Weighted Random Early Detection

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsbyte.htm

Cisco 10720—New Features

In Cisco IOS Release 12.0(26)S, the Cisco 10720 supports new features that are documented in the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

The following new features are supported:

L2TPv3 Ethernet-to-VLAN internetworking; for information, see the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm#15456

MQC hierarchical class maps; for information, see the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm#1386722

MQC strict priority queue; for information, see the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm#1417317

Starting in Cisco IOS Release 12.0(26)S, the following IP version 6 (IPv6) features use Parallel Express Forwarding (PXF) for accelerated, fast path forwarding on the Cisco 10720:

PXF accelerated IPv6

PXF accelerated IPv6-6PE

PXF accelerated IPv6 extended ACLs

For information about these three features, see the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm#1384431

Cisco 12000 Series 4-Port OC-12c/STM-4c DPT ISE Line Card Enhancements

Platform: Cisco 12000 series

New software features have been added to the Cisco 12000 series 4-port OC-12c/STM-4c Dynamic Packet Transport (DPT) IP Services Engine (ISE) line card. Starting in Cisco IOS Release 12.0(26)S, the following software features are now supported on the 4-port OC-12c/STM-4c DPT ISE line card:

Stateful Switchover (SSO)

IPv6

Error Recovery Enhancements

MPLS Functionality

Multicast Forwarding

Stateful Switchover (SSO)


Note The Stateful Switchover (SSO) feature was introduced in Cisco IOS Release 12.0(22)S. This release introduces the feature on the 4-port OC-12c/STM-4c DPT ISE line card.


The Stateful Switchover (SSO) feature is an incremental step within an overall program to improve the availability of networks constructed with Cisco IOS routers. SSO is particularly useful at the network edge. Traditionally, core routers protect against network faults using router redundancy and mesh connections that allow traffic to bypass failed network elements. SSO provides protection for network edge devices with dual Route Processors (RPs) that represent a single point of failure in the network design, and where an outage might result in loss of service for customers.

In specific Cisco networking devices that support dual RPs, SSO takes advantage of RP redundancy to increase network availability. The SSO feature takes advantage of RP redundancy by establishing one of the RPs as the active processor while the other RP is designated as the standby processor, and then synchronizing critical state information between them. Following an initial synchronization between the two processors, SSO dynamically maintains RP state information between them.

A switchover from the active to the standby processor occurs when the active RP fails, is removed from the networking device, or is manually taken down for maintenance.

SSO is used with the Cisco Nonstop Forwarding (NSF) feature. Cisco NSF allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. With Cisco NSF, peer networking devices do not experience routing flaps, thereby reducing loss of service outages for customers.

For more information about the Stateful Switchover feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/sso24s.htm

IPv6


Note IP version 6 (IPv6) was introduced in Cisco IOS Release 12.0(22)S. This release introduces IPv6 on the 4-port OC-12c/STM-4c DPT ISE line card.


IP is a packet-based protocol used to exchange data, voice, and video traffic over digital networks. IP handles addressing, fragmentation, reassembly, and protocol demultiplexing. It is the foundation on which all other IP protocols (collectively referred to as the IP Protocol suite) are built. As a network-layer protocol, IP contains addressing and control information that allows data packets to be routed. IPv6, formerly called IPng (next generation), is the latest version of IP and offers many benefits, such as a larger address space, over the previous version of IP (version 4).

For more information, see the IPv6 for Cisco IOS Software document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm

Error Recovery Enhancements

Error recovery on 4-port OC-12c/STM-4c DPT ISE line cards has been enhanced to include more comprehensive hardware failure detection and an improved recovery process. The boot time following hardware failures has also been minimized.

MPLS Functionality

In addition to MPLS Virtual Private Networks on the 4-Port OC-12c/STM-4c DPT ISE Line Card, which was introduced in Cisco IOS Release 12.0(25)S, the following Multiprotocol Label Switching (MPLS) features are now supported on the 4-port OC-12c/STM-4c DPT ISE line card:

MPLS Quality of Service (QoS)

The MPLS Quality of Service (QoS) feature was introduced in Cisco IOS Release 12.0(22)S. This release introduces the MPLS Quality of Service (QoS) feature on the 4-port OC-12c/STM-4c DPT ISE line card.

The MPLS Quality of Service (QoS) feature enables service providers to set the MPLS experimental field value without modifying the value of the IP precedence field in IP packets that are transported through an MPLS core network. By choosing different values for the MPLS experimental field, service providers can mark packets according to their characteristics, such as rate or type, so that packets have the priority that they require during periods of congestion.

For more information about how to use and configure the MPLS Quality of Service (QoS) feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st14mct/1214t.htm

MPLS Time To Live (TTL) Propagation from IP

The MPLS Time To Live (TTL) Propagation from IP feature was introduced in Cisco IOS Release 12.0(24)S for Engine 4+ DPT line cards. This release introduces the MPLS Time To Live (TTL) Propagation from IP feature on the 4-port OC-12c/STM-4c DPT ISE line card.

To control the generation of the time to live (TTL) field in the MPLS header when labels are first added to an IP packet, the 4-port OC-12c/STM-4c DPT ISE line card supports the use of the mpls ip propagate-ttl global configuration command.

For more information about this command, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122sup/122csum/csum2/122csswt/xsfscmd3.htm

Multicast Forwarding


Note The Multicast Forwarding feature was introduced in Cisco IOS Release 12.0(21)S. This release introduces the Multicast Forwarding feature on the 4-port OC-12c/STM-4c DPT ISE line card.


The Multicast Forwarding feature on the 4-port OC-12c/STM-4c DPT ISE line card allows hardware-based fast forwarding of IP version 4 (IPv4) multicast traffic, resulting in high throughputs and performance.

For more information about the hardware forwarding of IP multicast packets and how to enable hardware forwarding on DPT ISE line cards, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/mcast.htm

Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card Enhancements

Platform: Cisco 12000 series

Starting in Cisco IOS Release 12.0(26)S, the following software features are now supported on Cisco 12000 series 8-port OC-3/STM-1 ATM line cards:

ATM AAL5 and ATM Cell Relay Supported on the Same Port on Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Cards

IP Packet Precedence Marking on Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Cards

Sampled NetFlow and MPLS-aware NetFlow on Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Cards

ATM AAL5 and ATM Cell Relay Supported on the Same Port on Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Cards

Cisco 12000 series 8-port OC-3/STM-1 ATM line cards now support, by default, the Any Transport over MPLS (AToM): ATM Cell Relay over MPLS feature in both virtual circuit (VC) mode and virtual path (VP) mode and the configuration of the Any Transport over MPLS: ATM AAL5 over MPLS feature on the same port. In this section, both the Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VC Mode feature and the Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VP Mode feature are referred to as the ATM Cell Relay over MPLS: Single Cell Relay feature.

Starting in Cisco IOS Release 12.0(26)S, you no longer need to use the atm mode cell-relay interface configuration command to enable an 8-port OC-3/STM-1 ATM interface to send and receive ATM packets as part of the ATM Cell Relay over MPLS: Single Cell Relay feature.

Another restriction that has been removed from configuring the ATM Cell Relay over MPLS: Single Cell Relay feature on an 8-port OC-3/STM-1 ATM line card is that a corresponding port is no longer reserved for this feature. For example, in Cisco IOS Release 12.0(25)S, if you configure the ATM Cell Relay over MPLS: Single Cell Relay feature on port 0, port 1 is also reserved. Likewise, ports 2 and 3, ports 4 and 5, and ports 6 and 7 are reserved when you configure the ATM Cell Relay over MPLS: Single Cell Relay feature on either port in the pair.

In addition, in Cisco IOS Release 12.0(25)S, if you configure an 8-port OC-3/STM-1 ATM port for the Any Transport over MPLS: ATM AAL5 over MPLS feature and then configure the ATM Cell Relay over MPLS: Single Cell Relay feature on that port, the VCs and VPs for AAL5 on the port and its corresponding port were removed. Starting in Cisco IOS Release 12.0(26)S, this behavior no longer occurs. The Any Transport over MPLS: ATM AAL5 over MPLS feature and the ATM Cell Relay over MPLS: Single Cell Relay feature are supported on the same port.

Any Transport over MPLS (AToM) transports Layer 2 packets over a Multiprotocol Label Switching (MPLS) backbone. ATM single cell relay is one type of Layer 2 traffic that can be transported using AToM over an MPLS network core. For information about how to configure the ATM Cell Relay over MPLS: Single Cell Relay feature and the restrictions that existed in earlier Cisco IOS software releases, see the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

IP Packet Precedence Marking on Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Cards


Note The IP Packet Precedence Marking feature was introduced in Cisco IOS Release 12.0(22)S on the Cisco 12000 series Engine 2 Packet-over-SONET (POS) line cards. This release introduces the feature on Cisco 12000 series 8-port OC-3/STM-1 ATM line cards.


The IP Packet Precedence Marking feature is supported on 8-port OC-3/STM-1 ATM line cards. This feature is implemented in the Packet Switching ASIC (PSA) for fast path forwarding and in the line card switching software for slow path forwarding.

In the modular QoS CLI (MQC), you use the set ip precedence ip-precedence-value policy-map configuration command to set the precedence value in IP headers for a specified traffic class.


Note On 8-port OC-3/STM-1 ATM line cards, you can use the set ip precedence ip-precedence-value policy-map configuration command in a quality of service (QoS) policy configuration only with the default traffic class.


Usage Guidelines

On 8-port OC-3/STM-1 ATM line cards, IP packet precedence marking is implemented as follows:

IP packet precedence marking is performed on an individual virtual circuit (VC) basis in the ingress direction. IP packets received on the VC are marked irrespective of the packet switching behavior of the egress port. The QoS treatment of the packet is based on the new precedence bits set with the set ip precedence ip-precedence-value policy-map configuration command, not the original precedence bits received in the packet.

If a received IP packet is forwarded on an MPLS label-switched path (LSP), the experimental bits in the MPLS label are given the value of the precedence bit configured with the set ip precedence ip-precedence-value policy-map configuration command.

IP packet precedence marking is disabled by default. VC traffic is forwarded "as is" with no special QoS action.

Restrictions

The following restrictions apply to IP packet precedence marking on 8-port OC-3/STM-1 ATM line cards:

You can configure the IP precedence bit with the set ip precedence ip-precedence-value policy-map configuration command only on a per-PVC basis.

The set ip precedence ip-precedence-value policy-map configuration command is not supported on a PVC configured as l2transport.

Configuration Example

The following example shows how to set the precedence value in IP headers to 5 for the service policy ip_color1 configured for the default traffic class, and then attach the policy to an ATM virtual circuit on an 8-port OC-3/STM-1 ATM line card.

router(config)# policy-map ip_color1

router(config-pmap)# class class-default

router(config-pmap-c)# set ip precedence 5

router(config-pmap-c)# end

!

router(config)# interface atm 3/0.1 point-to-point

router(config-subif)# pvc 10/10

router(config-if-atm-vc)# service-policy input ip_color1

router(config-if-atm-vc)# end

For more information about how to use MQC to configure IP packet precedence marking in a QoS policy and attach the service policy to an interface or ATM virtual circuit, see Configuring the Modular Quality of Service Command-Line Interface at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt8/qcfmcli2.htm

Sampled NetFlow and MPLS-aware NetFlow on Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Cards

Cisco 12000 series 8-port OC-3/STM-1 ATM line cards now support the Sampled NetFlow and Multiprotocol Label Switching (MPLS)-aware NetFlow features.


Note The Sampled Netflow feature was introduced in Cisco IOS Release 12.0(11)S; the MPLS-aware NetFlow feature was introduced in Cisco IOS Release 12.0(24)S.


The Sampled NetFlow feature enables you to sample one out of many IP packets that are being forwarded to an interface. Sampled packets are accounted for in the NetFlow flow cache of the router. Sampling packets substantially decreases the CPU utilization that is needed to account for NetFlow packets, by allowing the majority of the packets to be switched faster because they do not require additional NetFlow processing. For information about how to configure and use Sampled NetFlow, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s11/12s_sanf.htm

MPLS-aware NetFlow is an extension of the NetFlow feature. NetFlow traditionally provides statistics for IP version 4 (IPv4) traffic. MPLS-aware NetFlow provides per-flow statistics for traffic in MPLS-enabled networks. The network administrator can turn on MPLS-aware NetFlow inside an MPLS cloud on a subset of provider (P) backbone routers. These routers can export MPLS-aware NetFlow data in real time to an external NetFlow collector device for further processing or to a data terminal for analysis. MPLS-aware NetFlow statistics can be used for detailed MPLS traffic studies and analysis. For additional information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/fsmnf24.htm

Cisco 12000 Series ISE and E4+ Line Card MQC Enhancements

Platform: Cisco 12000 series

Cisco 12000 series IP Services Engine (ISE) and Engine 4 Plus (E4+) line cards now support an enhanced set of modular QoS CLI (MQC) commands for the following line card types:

Packet-over-SONET (POS) ISE

Gigabit Ethernet (GE) ISE

ATM ISE

E4+ POS

E4+ GE

New Commands

Table 8 lists and describes the new MQC commands supported on ISE and E4+ line cards.

Table 8 MQC Commands Supported on Cisco 12000 Series ISE and E4+ Line Cards 

MQC Command
Description

match ip dscp

Configures a specific IP differentiated service code point (DSCP) value as a match criterion.

match mpls experimental

Configures a class map to use the specified value of the EXP field as a match criterion.

match qos-group

Configures a specific QoS group value as a match criterion.

random-detect discard-class-based

Enables weighted random early detection (WRED) so that it is based on the discard class value of a packet.

set discard-class

Marks a packet with a discard-class value that describes its per-hop behavior (PHB) for dropping traffic.

set ip dscp

Marks a packet by setting the IP differentiated services code point (DSCP) in the type of service (ToS) byte.

set ip precedence

Configures the precedence value in the IP header.

set mpls experimental imposition1

Configures the value of the Multiprotocol Label Switching (MPLS) EXP field in all imposed label entries at an input interface.

set mpls experimental topmost

Configures the MPLS EXP field value in the topmost MPLS label header at an input and/or output interface.

set qos-group2

Configures a group ID so that it can be used later to classify packets.

1 The set mpls experimental imposition command is supported only on the input interfaces of POS ISE, GE ISE, ATM ISE, ES+ POS, and E4+ Ethernet line cards.

2 The set qos-group command is supported only on the input interfaces of ISE and E4+ line cards. Up to eight QoS groups are supported per line card. The valid values for the set qos-group command are from 0 to 7; 0 is the default for the qos-group keyword.


The enhanced MQC command set is implemented in the following ways on Cisco 12000 series ISE and E4+ line cards:

Although E4+ line cards support MQC QoS configuration only on physical interfaces, an E4+ Ethernet line card can support input access control lists (ACLs) for a VLAN.

Packet-over-SONET and Gigabit Ethernet ISE line cards support MQC QoS configuration on both physical interfaces and subinterfaces. ATM ISE line cards support MQC QoS configuration on virtual circuits (VCs).

When a Cisco 12000 series is used as a Provider Edge (PE) router, the set qos-group and set discard-class commands support pipe mode on output interfaces only for the following combinations of output interfaces:

Core-Facing Interface
Customer Network-Facing Interface

E2

ISE

ISE

ISE

E4+

ISE

E4+

E4+


Restrictions

The following restrictions apply to pipe mode between Cisco 12000 series output interfaces:

If the core-facing output interface is E4+, you must configure the set qos-group ID as a value between 0 and 7.

Pipe mode is only partially supported between E2 core-facing and ISE customer-facing output interfaces. The only parameter that is sent from the E2 to the ISE interface is the set qos-group value (the set discard-class value is not sent), which is identically mapped to the E2 exp-value of the exposed label. On the ISE interface, scheduling is performed using the match qos-group command.

On ISE and E4+ line cards, the MPLS experimental (EXP) value is automatically propagated from the null label to the exposed label.

On ISE line cards, the set discard-class command is supported as one of the possible traffic policing actions that you can configure with the police command.

On ISE and E4+ line cards, the set mpls experimental imposition and set mpls experimental topmost commands are supported as possible traffic policing actions that you can configure with the police command.

Eight levels of quality of service are provided for ISE ToFab queues, instead of only two levels supported in earlier releases.

ToFab queue and output queue selection is based on the remarked packets.

Weighted Random Early Detection (WRED) enabled on an output interface is based on the remarked packets sent to the output interface.

More Information

For more information about MQC command syntax and how to use these MQC commands on Cisco 12000 series ISE and E4+ line cards, see the following publications:

Cisco IOS Quality of Service Solutions Command Reference at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123tcr/123tqr/index.htm

Modular Quality of Service Command-Line Interface at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/mcli.htm

MPLS DiffServ Tunneling Modes

The following MQC commands are supported on Cisco 12000 series ISE and E4+ line cards to configure the MPLS DiffServ Tunneling Modes feature:

match qos-group

set discard-class

set mpls experimental imposition

set mpls experimental topmost

set discard-class

The MPLS DiffServ Tunneling Modes feature allows service providers to manage the quality of service that a router will provide to a Multiprotocol Label Switching (MPLS) packet in an MPLS network. The MPLS DiffServ Tunneling Modes feature conforms to the IETF draft standard for Uniform, Short Pipe, and Pipe modes. It also conforms to Cisco-defined extensions for scalable command-line interface (CLI) management of those modes at customer edge, provider edge, and core routers.

For more information about how to configure and use the MPLS DiffServ Tunneling Modes feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftdtmode.htm

CISCO-ATM-EXT-MIB

Platform: Cisco 12000 series

The CISCO-ATM-EXT-MIB has been enhanced to include support for Operation, Administration, and Maintenance (OAM) parameters used to manage ATM permanent virtual circuits (PVCs). OAM ensures that no packets are lost by allowing a PVC to go down if there is a disruption along its path, such as if network connectivity is lost. A new table is added to the CISCO-ATM-EXT-MIB that contains OAM configuration and PVC state information.

No new or modified Cisco IOS commands are associated with this MIB. For details on managed objects within the CISCO-ATM-EXT-MIB, see the CISCO-ATM-EXT-MIB.my MIB file, available from the Cisco MIB FTP site at the following location:

http://tools.cisco.com/Support/SNMP/do/BrowseMIB.do?local=en&step=2

Class-Based Marking

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsmark26.htm

Class-Based Policing

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fspolic.htm

Class-Based Shaping

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsshp26p.htm

Class-Based Weighted Fair Queueing and Weighted Random Early Detection

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fswfq26.htm

CNS Config Notify

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/s_cnscn.htm

CPU Threshold Notification

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/cs_cput.htm

Digital-link Subrate Scramble for Cisco 12000 Series 6-Port E3 and 12-Port E3 Line Cards

Platform: Cisco 12000 series

The 6-port E3 (6E3-SMB) and 12-port E3 (12E3-SMB) line cards for the Cisco 12000 series now support interoperating with the Cisco 7200 series and Cisco 7500 series 1-port E3 serial port adapter (PA-E3) and 2-port E3 serial port adapter (PA-2E3) when subrate and scrambling are enabled in digital-link mode. The Digital-link Subrate Scramble feature enhances interoperability between the 6E3-SMB and 12E3-SMB line cards and the PA-E3 and PA-2E3 port adapters. Subrate means that the configured bandwidth of the interface is less than the full default rate of 34,010 kbps.

To implement the Digital-link Subrate Scramble feature, enter the scramble before subrate processing interface configuration command. The before subrate processing option performs scrambling before the data has gone through subrate processing.

The configuration scenarios that are shown in Table 9 should be used when attempting interoperability between the 6E3-SMB and 12E3-SMB line cards and the PA-E3 and PA-2E3 port adapters.

Table 9 Interoperability Configuration—Cisco 12000 Series 6E3-SMB and 12E3-SMB Line Cards and Cisco 7000 Series E3 Port Adapters 

Mode
Cisco 7000 Series Configuration 1
Cisco 12000 Series Configuration 2

Digital-link: subrate and scrambling required

dsu mode 0
dsu bandwidth <y>
scramble

dsu mode digital-link
dsu bandwidth <y>
scramble before subrate processing

Digital-link: subrate required, no scrambling required

dsu mode 0
dsu bandwidth <y>

dsu mode digital-link
dsu bandwidth <y>

Digital-link: scrambling required, no subrate required

dsu mode 0
dsu bandwidth 34010
scramble

dsu mode digital-link
dsu bandwidth 34010
scramble

Digital-link: no subrate, no scrambling required

dsu mode 0

dsu mode digital-link

Kentrox mode: subrate and scrambling required

Kentrox mode: subrate required, no scrambling required

dsu mode 1
dsu bandwidth <x>3

dsu mode kentrox
dsu bandwidth <x>

Kentrox mode: scrambling required, no subrate required

dsu mode 1
dsu bandwidth 34010
scramble

dsu mode kentrox
dsu bandwidth 34010
scramble

Kentrox mode: no subrate, no scrambling required

dsu mode 1
dsu bandwidth 34010

dsu mode kentrox
dsu bandwidth 34010

1 Interface configuration on PA-E3 or PA-2E3.

2 Interface configuration on 6E3-SMB or 12E3-SMB.

3 x is between 1000 and 24,500 kbps.


Embedded Event Manager 1.0

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsioseem.htm

Enhanced SNMP for Stateful Switchover

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/ssomibs3.htm

Ethernet VLAN Interworking

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsinterw.htm

Ethernet VLAN to ATM AAL5 Interworking

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsinterw.htm

Ethernet VLAN to Frame Relay Interworking

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsinterw.htm

Frame Relay PVC Bundles with QoS Support for IP and MPLS

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/wan/configuration/guide/wan_fr_pvcbnd_qos_ps6922_TSD_Products_Configuration_Guide_Chapter.html

Frame Relay to ATM AAL5 Interworking

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsinterw.htm

Frame Relay to PPP Interworking

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsinterw.htm

Image Verification

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/gt_image.htm

Integrated IS-IS Multitopology Support for IPv6

Platforms: Cisco 10720, Cisco 12000 series

The Integrated IS-IS Multitopology Support for IPv6 feature enables Intermediate System-to-Intermediate System (IS-IS) to maintain a set of independent topologies within a single area or domain. This mode removes the restriction that all interfaces on which IS-IS is configured must support the identical set of network address families. It also removes the restriction that all routers in the IS-IS area (for Level 1 routing) or domain (for Level 2 routing) must support the identical set of network layer address families. Because multiple shortest path first (SPF) calculations are performed, one for each configured topology, it is sufficient that connectivity exists among a subset of the routers in the area or domain for a given network address family to be routable.

For additional information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_isis6.htm

IP Source Tracker

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/ipst.htm

IPMROUTE-STD-MIB

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

This feature introduces support for the IPMROUTE-STD-MIB in Cisco IOS Release 12.0(26)S. The IPMROUTE-STD-MIB, as defined in RFC 2932, is a module for management of IP multicast routing in a manner independent of the specific multicast routing protocol in use. Support for this MIB replaces the draft form of the IPMROUTE-MIB.

The IPMROUTE-STD-MIB supports all the MIB objects of the IPMROUTE-MIB and in addition supports the following four new MIB objects:

ipMRouteEntryCount

ipMRouteHCOctets

ipMRouteInterfaceHCInMcastOctets

ipMRouteInterfaceHCOutMcastOctets

The ipMRouteScopeNameTable MIB object is not supported as it is not relevant to multicast routers.

IPv6 Multicast on Cisco 12000 Series Routers

Platform: Cisco 12000 series

Traditional IP and IP version 6 (IPv6) communication enables a host to send packets to a single host (unicast transmission) or to all hosts (broadcast transmission). IPv6 multicast provides a third scheme, allowing a host to send a single data stream to a subset of all hosts (group transmission) at about the same time.

The multicast environment consists of senders and receivers. Any host, regardless of whether it is a member of a group, can send to a group. However, only the members of a group receive the message. Packets delivered to group members are identified by a single multicast group address. Multicast packets are delivered to a group using best-effort reliability, just like IPv6 unicast packets.

IPv6 Multicast Features

In Cisco IOS Release 12.0(26)S, the following IPv6 multicast features are supported on the Cisco 12000 series:

Multicast Listener Discovery (MLD) protocol for IPv6, Versions 1 and 2—MLD is used by IPv6 routers to discover multicast listeners on directly attached links. There are two versions of MLD: MLD version 1 is based on version 2 of the Internet Group Management Protocol (IGMP) for IP version 4 (IPv4), and MLD version 2 is based on version 3 of the IGMP for IPv4. IPv6 multicast for Cisco IOS software uses both MLD version2 and MLD version 1.

MLD access group—The MLD access group provides receiver access control in Cisco IOS IPv6 multicast routers. This feature limits the list of groups a receiver can join, and it allows or denies sources used to join Source Specific Multicast (SSM) channels.

Protocol Independent Multicast sparse mode (PIM-SM)—IPv6 multicast provides support for intradomain multicast routing using PIM-SM. PIM-SM uses unicast routing to provide reverse-path information for multicast tree building, but it is not dependent on any particular unicast routing protocol.

Protocol Independent Multicast Source Specific Multicast (PIM-SSM)—PIM-SSM is the routing protocol that supports the implementation of SSM and is derived from PIM-SM. However, unlike PIM-SM where all multicast sources are sent when there is a PIM join, the SSM feature forwards datagram traffic to receivers from only those multicast sources that the receivers have explicitly joined, thus optimizing bandwidth utilization and denying unwanted Internet broadcast traffic.

Protocol Independent Multicast (PIM) embedded Route Processor (RP) support—Embedded RP allows the router to learn RP information (such as the RP address and group-to-RP mappings) using the multicast group destination address instead of the statically configured RP.

IPv6 multicast over IPv4 tunnels—IPv6 multicast is supported only over IPv4 tunnels in Cisco IOS Release 12.0(26)S.

Static rendezvous point (RP) configuration—To select a static RP over an embedded RP, the specific embedded RP group range or mask must be configured in the access list of the static RP.

Multicast scope boundaries—IPv6 includes support for global and nonglobal addresses. A scope zone, or a simply a zone, is a connected region of topology of a given scope. For example, the set of links connected by routers within a particular site, and the interfaces attached to those links, comprise a single zone of site-local scope.

Multicast Routing Information Base (MRIB)—The MRIB is a protocol-independent repository of multicast routing entries instantiated by multicast routing protocols (routing clients). Its main function is to provide independence between routing protocols and the Multicast Forwarding Information Base (MFIB).

IPv6 multicast process switching and fast switching—In process switching, the Route Processor must examine, rewrite, and forward each packet. IPv6 multicast fast switching stores information in several data structures instead of in a route cache for efficient packet forwarding performance in IPv6 multicast switching.

IPv6 static multicast routes (mroutes) for IPv6—IPv6 static mroutes share the same database as IPv6 static routes and are implemented by extending static route support.

IPv6 multicast address family support for multiprotocol Border Gateway Protocol (BGP)—The multiprotocol BGP for the IPv6 multicast address family feature provides multicast BGP (MBGP) extensions for IPv6 and supports the same features and functionality as IPv4 BGP. IPv6 enhancements to MBGP include support for an IPv6 multicast address family and network layer reachability information (NLRI) and next hop (the next router in the path to the destination) attributes that use IPv6 addresses.

Reverse Path Forwarding (RPF) flooding of bootstrap router (BSR) packets—Cisco IOS IPv6 routers provide support for the RPF flooding of BSR packets so that a Cisco IOS IPv6 router will not disrupt the flow of bootstrap messages (BSMs).

IPv6 Protocol Independent Multicast (PIM) accept register—IPv6 multicast supports PIM-SM register message filtering at the RP. The user can match an access list or compare the autonomous system (AS) path for the registered source with the AS path specified in a route map.

Routable address hello option—When an IPv6 interior gateway protocol is used to build the unicast routing table, the procedure to detect the upstream router address assumes the address of a PIM neighbor is always same as the address of the next-hop router, as long as they see the same router. However, it may not be the case when a router has multiple addresses on a link. The routable address hello option allows the PIM protocol avoid such situation by adding a PIM hello message option that includes all the addresses on the interface on which the PIM hello message is advertised.

For additional information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_mcast.htm

IPv6 Multicast on Cisco 12000 Series Line Cards

In Cisco IOS Release 12.0(26)S, IPv6 multicast is supported on the Cisco 12000 series on the following line cards:

IP Services Engine (ISE) line cards:

4-port Gigabit Ethernet ISE

4-port OC-3c/STM-1c POS/SDH ISE

8-port OC-3c/STM-1c POS/SDH ISE

16-port OC-3c/STM-1c POS/SDH ISE

4-port OC-12c/STM-4c POS/SDH ISE

1-port OC-48c/STM-16c POS/SDH ISE

Engine 4 Plus (E4+) Packet-over-SONET (POS) line cards:

4-port OC-48c/STM-16c POS/SDH

1-port OC-192c/STM-64c POS/SDH


Note In future Cisco IOS software releases, IPv6 Multicast will be supported on other Cisco 12000 series line cards. IPv6 Multicast will not, however, be supported on the 8-port Fast Ethernet and 1-port Gigabit Ethernet Engine 1 line cards and the 3-port Gigabit Ethernet Engine 2 line card.


Forwarding of IPv6 multicast traffic is hardware-based on Cisco 12000 series IP Services Engine (ISE) line cards and software-based on all other supported Cisco 12000 series line cards.

IPv6 Multicast on Cisco 12000 Series ISE Line Cards

On Cisco 12000 series ISE line cards, IPv6 multicast is implemented so that if the number of IPv6 multicast routes exceeds the hardware capacity of the ternary content addressable memory (TCAM), the following error message is displayed to describe how to increase the TCAM hardware capacity for IPv6 multicast routes:

EE48-3-IPV6_TCAM_CAPACITY_EXCEEDED: IPv6 multicast pkts will be software switched.

To support more IPv6 multicast routes in hardware:

Get current TCAM usage with: show controllers ISE <slot> tcam

In config mode, reallocate TCAM regions e.g. reallocate Netflow TCAM to IPv6 Mcast

hw-module slot <num> tcam carve rx_ipv6_mcast <v6-mcast-percent>

hw-module slot <num> tcam carve rx_top_nf <nf-percent>

Verify with show command that sum of all TCAM regions = 100%

Reload the linecard for the new TCAM carve config to take effect

WARNING: Recarve may affect other input features(ACL,CAR,MQC,Netflow)

TCAM is used for IPv6 Multicast forwarding lookups. To increase TCAM capacity for handling IPv6 Multicast routes, you must use the hw-module slot number tcam carve rx_ipv6_mcast v6-mcast-percentage privileged EXEC command, in which the v6-mcast-percentage argument specifies the percentage of TCAM hardware that is used by the IPv6 Multicast prefix.

For example, you can change the IPv6 Multicast region from 1 percent (default) to 16 percent of the TCAM hardware by reallocating the NetFlow region from 35 percent (default) to 20 percent as follows:

Router# hw-module slot 3 tcam carve rx_ipv6_mcast 16

Router# hw-module slot 3 tcam carve rx_nf 20

Configuring IPv6 Multicast

For information about how to configure and use IPv6 multicast, see the Implementing IPv6 Multicast document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_vcg.htm

IS-IS Local RIB Support for Faster IP Prefix RIB Installation

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fslocrib.htm

Link Bundling on Cisco 12000 Series Internet Routers

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/lnkbndl.htm

Logging to Local Non-Volatile Storage (ATA Disk)

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/cs_sysls.htm

Low Latency Queueing

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsllq26.htm

Modular Quality of Service Command-Line Interface

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsqos26.htm

MPLS—Aware NetFlow

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsmnf26.htm

MPLS—LDP Inbound Label Binding Filtering

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fsinbd4.html

MPLS—VRF Aware Static Labels

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_vrf_aware_static.html

MPLS Fast Reroute Link Protection

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fslinkpt.htm

MPLS Traffic Engineering Fast Reroute—Link Protection

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fslinkpt.htm

MPLS Traffic Engineering—Fast Reroute MIB

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/frr_mib.htm

MPLS Traffic Engineering LSP Attributes

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fslspatt.htm

MPLS Traffic Engineering—Verbatim Path Support

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsvbmlsp.htm

MPLS Virtual Private Networks (VPNs)

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsmvpn26.htm

MPLS VPN—Route Target Rewrite

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsrtrw.htm

MPLS VPN—VRF Selection based on Source IP Address

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/fsvrf24.htm

Multicast-VPN—IP Multicast Support for MPLS VPNs

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/fs_mvpn.htm

Multirouter Automatic Protection Switching (APS)

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/12s_apsm.htm

NetFlow BGP Next Hop Support

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/nfbgpnxt.htm

Optical Power Monitor on Cisco 12000 Series ISE and Engine 4 DPT Line Cards

Platform: Cisco 12000 series

You can monitor the optical power that is received and that is transmitted from Spatial Reuse Protocol (SRP) ports using the show controllers srp EXEC command. This feature is available on the following Cisco 12000 series Dynamic Packet Transport (DPT) line cards:

4-port OC-12c/STM-4c DPT ISE

4-port OC-48c/STM-16 DPT

1-port OC-192c/STM-64 DPT

For more information on the show controllers srp EXEC command and for sample output, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/srpapsgs.htm

OSPF MIB Support of RFC 1850 and Latest Extensions

This release updates the OSPF MIB support to the latest RFC 1850 and adds the latest draft extensions. For more information regarding the definitions of the draft extensions, see the CISCO-OSPF-MIB.my and CISCO-OSPF-TRAP-MIB.my files that are available through the Cisco MIB FTP site. MIB information is available at the following URL

http://tools.cisco.com/ITDIT/MIBS/servlet/index

For routers that are running Cisco IOS Release 12.0(26)S and later releases, the OSPF MIB and CISCO OSPF MIB will be supported only for the first OSPF process (except for MIB objects that are related to virtual links and sham links). SNMP traps will be generated for OSPF events that are related to any of the OSPF processes. There is no workaround for this situation.

The CISCO-OSPF-MIB.my is a read-only MIB.

Output Sampled Netflow

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/12soutfl.htm

Packet Classification Using the Frame Relay DLCI Number

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/ftdlc26i.htm

Policer Enhancement: Multiple Actions

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsmu26s.htm

PVC Bundle Selection over ATM and FR

For detailed information about this feature, see the following documents:

ATM PVC Bundle Enhancement—MPLS EXP-Based PVC Selection:

http://www.cisco.com/en/US/docs/routers/10000/10008/configuration/guides/qos/10qovrvu.html#wp1104545

Frame Relay PVC Bundles with QoS Support for IP and MPLS:

www.cisco.com/en/US/docs/routers/10000/10008/configuration/guides/qos/10qovrvu.html#wp1104545

QoS: Color-Aware Policer

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/12s_cap.htm

Quality of Service on Aggregate VLAN Traffic

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/aggvlan.htm

Random Sampled NetFlow

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/nfstatsa.htm

Regex Engine Performance Enhancement

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/s_rexpe.htm

RSVP Message Authentication

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsrsvpma.htm

RSVP Refresh Reduction and Reliable Messaging

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/fsrsvp26.htm

Sampled NetFlow

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s11/12s_sanf.htm

Service Assurance Agent (SAA) MPLS VPN Operation

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft1csaa.htm

SNMP—IP Precedence and DSCP Support

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/12s_prec.htm

Source Specific Multicast (SSM) - Mapping

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/gtssmma.htm

Two-Rate Policer

For detailed information about this feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/ft2plc26.ht

New Hardware and Software Features in Cisco IOS Release 12.0(25)S1 to Cisco IOS Release 12.0(25)S4

There are no new hardware or software features in Cisco IOS Release 12.0(25)S1 to Cisco IOS Release 12.0(25)S4.

New Hardware Features in Cisco IOS Release 12.0(25)S

This section describes new and changed features in Cisco IOS Release 12.0(25)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(25)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

4-Port Gigabit Ethernet ISE Line Card

Platform: Cisco 12000 series

The 4-port Gigabit Ethernet IP Services Engine (ISE) line card provides a Cisco 12000 series with four optical Gigabit Ethernet interfaces on a single line card, while providing full edge engine capabilities. Because the total ingress bandwidth of all four ports (4 Gbps) exceeds the throughput capabilities of the line card (2.5 Gbps), a series of plim qos input commands were introduced into Cisco IOS software to identify high-priority traffic and pass it to the high-priority queues.

The line card provides high-speed interconnections to other network devices, such as other Cisco 12000 series, other routers, or Layer 2 and Layer 3 switches that support Gigabit Ethernet interfaces. For information about how to configure and use software features on the 4-port Gigabit Ethernet ISE line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/4ge_ise.htm

4-Port OC-12c/STM-4c ATM ISE Line Card

Platform: Cisco 12000 series

The 4-port OC-12c/STM-4c ATM IP Services Engine (ISE) line card provides four 622-Mbps ATM interfaces and brings enhanced Layer 3 processing and high bandwidth ATM capabilities to the Cisco 12000 series.

The 4-port OC-12c/STM-4c ATM ISE line card supports IP services engine (ISE) features, including extensive traffic queueing, shaping, and congestion management features at a sustained full duplex throughput of 5.66 million cells per second. The line card also delivers a robust set of edge packet processing features, such as access control lists (ACLs), extended access control lists (EACLs), committed access rate (CAR), NetFlow, and Multicast with incorporated Modified Deficit Round Robin (MDRR), Weighted Random Early Detection (WRED), and backpressure congestion avoidance mechanism.

For information about how to configure and use these software features on the 4-port OC-12c/STM-4c ATM ISE line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/4atm_ise.htm

New Software Features in Cisco IOS Release 12.0(25)S

This section describes new and changed features in Cisco IOS Release 12.0(25)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(25)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS

The following sections describe the various Any Transport over MPLS (AToM): ATM Cell Relay over Multiprotocol Label Switching (MPLS) features:

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: Packed Cell Relay

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: Port Mode

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VC Mode

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VP Mode

Table 10 shows the platforms that support the new ATM cell relay features.

Table 10 Platforms That Support the ATM Cell Relay Features 

Transport Type
Mode
Cisco 7200 Series
Cisco 7500 Series
Cisco 12000 Series

ATM Cell Relay over MPLS:
Packed Cell Relay

VC mode

Yes

Yes

No

VP mode

Yes

Yes

No

ATM Cell Relay over MPLS:
Single Cell Relay

Port mode

No

No

Yes

VC mode

Yes

Yes

Yes

VP mode

Yes

Yes

Yes



Note The following restriction pertains to the ATM Cell Relay over MPLS feature.
Traffic engineering (TE) tunnels: If you have TE tunnels that are running between provider edge (PE) routers, you must enable label distribution protocol (LDP) on the tunnel interfaces.


Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: Packed Cell Relay

Platforms: Cisco 7200 series, Cisco 7500 series

The packed cell relay feature allows you to insert multiple concatenated ATM cells in an MPLS packet. The packed cell relay feature is more efficient than single cell relay, because each ATM cell is 52 bytes, and each AToM packet is at least 64 bytes. You configure the packed cell relay feature in ATM virtual path (VP) or virtual circuit (VC) mode.

For more information, see the "Configuring ATM Cell Relay over MPLS: Packed Cell Relay" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: Port Mode

Platform: Cisco 12000 series

Port mode cell relay allows a single cell that comes into an ATM interface to be packed into an MPLS packet and transported over the MPLS backbone to an egress ATM interface.

To configure port mode, enter the xconnect command from an ATM main interface and specify the destination address and the virtual circuit (VC) ID. The syntax and semantics of the xconnect command are the same as for all other transport types. Each ATM port is associated with one unique pseudowire VC label.

For more information, see the "Configuring ATM Cell Relay over MPLS: Port Mode" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VC Mode

Platform: Cisco 12000 series

ATM Cell Relay over MPLS in virtual circuit (VC) mode enables you to configure ATM circuits on permanent virtual circuits (PVCs). This feature was introduced in Cisco IOS Release 12.0(23)S for the Cisco 7200 series and Cisco 7500 series. Release 12.0(25)S introduces this feature for the Cisco 12000 series.

For the Cisco 12000 series, label imposition is supported on all Engine 0 ATM line cards and on the Engine 2 8-port OC-3/STM-1 ATM line card. Label disposition is supported on all line cards.

For more information, see the "Configuring ATM Cell Relay over MPLS: VC Mode" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VP Mode

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

Virtual path (VP) mode allows cells that come into a predefined permanent virtual path (PVP) on the ATM interface to be transported over the MPLS backbone to a predefined PVP on the egress ATM interface. You can use VP mode to send single cells or packed cells over the MPLS backbone.

To configure VP mode, you must specify the following:

The VP is for transporting cell relay cells.

The IP address of the peer provider edge (PE) router and the virtual circuit (VC) ID.

For more information, see the "Configuring ATM Cell Relay over MPLS: VP Mode" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Any Transport over MPLS (AToM): Distributed Mode for Frame Relay, PPP, and HDLC over MPLS

Platforms: Cisco 7500 series, Cisco 12000 series


Note Distributed Cisco Express Forwarding (CEF) is the only forwarding model supported on the Cisco 12000 series and is enabled by default. Disabling distributed CEF on the Cisco 12000 series disables forwarding.


Distributed Versatile Interface Processor (VIP) switching is supported on the Cisco 7500 series for Frame Relay, High-Level Data Link Control (HDLC), and PPP. In distributed VIP switching, the switching process occurs on the VIPs that support switching.

Distributed CEF mode is supported on the Cisco 7500 series for Frame Relay, High-Level Data Link Control (HDLC), and PPP. In distributed CEF mode, the switching process occurs on the VIPs that support switching. When distributed CEF is enabled, VIP port adapters maintain identical copies of the Forwarding Information Base (FIB) and adjacency tables. The port adapters perform the express forwarding between port adapters, relieving the Route Switch Processor (RSP) from performing the switching. Distributed CEF uses an interprocess communications (IPC) mechanism to ensure synchronization of FIBs and adjacency tables between the RSP and port adapters.

To enable distributed CEF on the Cisco 7500 series, enter the ip cef distributed global configuration command.

For more information, see the "How to Configure Distributed CEF Mode" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Any Transport over MPLS (AToM): Ethernet over MPLS: Port Mode

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series


Note The Any Transport over MPLS (AToM): Ethernet over MPLS feature in VLAN mode was introduced in Cisco IOS Release 12.0(22)S for the Cisco 10720 and the Cisco 12000 series and in Release 12.0(23)S for the Cisco 7200 series and Cisco 7500 series. Release 12.0(25)S introduces the Any Transport over MPLS (AToM): Ethernet over MPLS: Port Mode feature. The Cisco 10720 has supported the Any Transport over MPLS (AToM): Ethernet over MPLS feature in both VLAN mode and Port mode since the introduction of the feature in Release12.0(22)S.


The Any Transport over MPLS (AToM): Ethernet over MPLS: Port Mode feature enables a frame that is coming into an interface to be packed into a Multiprotocol Label Switching (MPLS) packet and transported over the MPLS backbone to an egress interface. The entire Ethernet frame without the preamble or frame check sequence (FCS) is transported as a single packet. To configure port mode, use the xconnect command in main interface mode and specify the destination address and the virtual circuit (VC) ID. The syntax and semantics of the xconnect command are the same as for all other transport types. Each interface is associated with one unique pseudowire VC label.

For more information, see the "Configuring Ethernet over MPLS: Port Mode" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Any Transport over MPLS (AToM): Tunnel Selection

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10720, Cisco 12000 series


Note The Cisco 10720 supports the Any Transport over MPLS (AToM): Tunnel Selection feature in an Ethernet over MPLS (EoMPLS) configuration.


The Any Transport over MPLS (AToM): Tunnel Selection feature enables you to specify the path that traffic uses. You can specify either a Multiprotocol Label Switching (MPLS) traffic engineering (TE) tunnel or a destination IP address/DNS name.

You also have the option of specifying whether virtual circuits (VCs) should use the default path (the path that label distribution protocol [LDP] used for signaling) if the preferred path is unreachable. This option is enabled by default; you must explicitly disable it.

For more information, see the "How to Configure Tunnel Selection" section in the Any Transport over MPLS document at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/atom25s.htm

Cisco 12000 Series 4-Port OC-12c/STM-4c DPT ISE Line Card Enhancements

Platform: Cisco 12000 series

Starting in Cisco IOS Release 12.0(25)S, the following software features are now supported on Cisco 12000 series 4-port OC-12c/STM-4c DPT IP Services Engine (ISE) line cards:

MPLS Virtual Private Networks on the 4-Port OC-12c/STM-4c DPT ISE Line Card

FPGA Updates Using Field Diagnostics on the 4-Port OC-12c/STM-4c DPT ISE Line Card

MPLS Virtual Private Networks on the 4-Port OC-12c/STM-4c DPT ISE Line Card

The Cisco 12000 series 4-port OC-12c/STM-4c DPT ISE line card now supports the IP Virtual Private Network (VPN) feature for Multiprotocol Label Switching (MPLS). An MPLS VPN allows a Cisco IOS network to deploy scalable IPv4 Layer 3 VPN backbone services.

An IP VPN is the foundation companies use for deploying or administering value-added services including applications and data hosting network commerce, and telephony services to business customers. In private LANs, IP-based intranets have fundamentally changed the way companies conduct their business. Companies are moving their business applications to their intranets to extend over a WAN. Companies are also embracing the needs of their customers, suppliers, and partners by using extranets (an intranet that encompasses multiple businesses). With extranets, companies reduce business process costs by facilitating supply-chain automation, electronic data interchange (EDI), and other forms of network commerce. To take advantage of this business opportunity, service providers must have an IP VPN infrastructure that delivers private network services to businesses over a public infrastructure.

For information about how to configure and use the MPLS VPN feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fsvpn23.htm

FPGA Updates Using Field Diagnostics on the 4-Port OC-12c/STM-4c DPT ISE Line Card

You can use the diag slot-number update-fpga command in privileged EXEC mode to update Flash memory with field-programmable gate array (FPGA) images from the current field diagnostics download image in a Cisco 12000 series 4-port OC-12c/STM-4c DPT ISE line card.

When you update Flash memory with an FPGA image, note the following restrictions:

This diag option limits your field diagnostics session to one task: updating the FPGA images in Flash memory on the line card. No other testing is performed during this session.

This diag option updates all FPGA images in Flash memory. This process is nonselective in cases in which a line card contains multiple FPGAs.

For more information about how to update FPGA images in Flash memory, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/diag.htm

Distributed Frame Relay Switching

Platform: Cisco 7500 series

The Distributed Frame Relay Switching feature enables Frame Relay switching, modular quality of service (QoS) command-line interface (CLI) (MQC) traffic shaping, MQC policing, and end-to-end FRF.12 fragmentation to occur locally on the Versatile Interface Processor (VIP) line cards. Enabling these processes to occur locally relieves the Route Switch Processor (RSP) of involvement in the switching and packet-handling operation.

Ethernet MDI/MDI-X Support on the Cisco 10720

Platform: Cisco 10720

The Ethernet MDI/MDI-X Support on the Cisco 10720 feature is documented in the following two sections:

Revision B Ethernet Access Card

media-type Command on the Cisco 10720

Revision B Ethernet Access Card

The combined 4-port Gigabit Ethernet 8-port 10/100 Ethernet TX access module that is used in the Cisco 10720 router is now available in a new revision—Revision B.

The Revision B Ethernet access module provides a configurable option for Fast Ethernet TX ports on the Cisco 10720 router. You can configure an Ethernet TX port on the Revision B access module for a media-dependent interface (MDI) or media-dependent interface crossed-over (MDI-X) cable connection. Also, you can configure a Fast Ethernet TX port to autosense the connection type (MDI or MDI-X) and autoconfigure the port to the right mode.

Ethernet ports on servers normally use an MDI connector. Ethernet ports on a hub normally use an MDI-X connector. An Ethernet straight-through cable (commonly available) is used to connect an MDI to an MDI-X port. A cross-over cable (less commonly available) is used to connect an MDI to an MDI port, or an MDI-X to an MDI-X port.

The PHY chips used on the Revision B Ethernet access module provide support for the following types of cable connections on a Fast Ethernet TX port:

Cross-over cable to connect a media-dependent interface (MDI) port to a 10720 Fast Ethernet TX port in MDI mode.

Cross-over cable to connect a media-dependent interface crossed-over (MDI-X) port to a 10720 Fast Ethernet TX port in MDI-X mode.

Straight-through cable to connect an MDI port to a Cisco 10720 Fast Ethernet TX port in MDI-X mode, or an MDI-X port to a Cisco 10720 Fast Ethernet TX port in MDI mode.

The Revision B Ethernet access module provides the flexibility to configure an Ethernet TX port on the Cisco 10720 router as MDI or MDI-X according to the network device connected to the port, therefore allowing for the use of a straight-through cable for all combinations.

media-type Command on the Cisco 10720

To configure the type of cable connector used on a Fast Ethernet TX interface on the combined 4-port Gigabit Ethernet 8-port 10/100 Ethernet TX access module, use the media-type {auto | mdi | mdix} command in interface configuration mode.

The media-type command allows you to configure a media-dependent interface (MDI) connection, a media-dependent interface crossed-over interface (MDI-X) connection, or an autoconfiguration mode that automatically configures the required type of cable connector setting.

For the Revision A Ethernet access card, the default cable connector setting is mdix, except in Japan where it is possible to use the media-type command to change the cable connection type. On the Revision B Ethernet access card, the default setting for a Fast Ethernet TX interface is auto.

For more detailed information about how to use the media-type command, see the "Command Reference" section in the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

IPv6 Hardware-Assisted Enhancements on Cisco 12000 IP Services Engine (ISE) Line Cards

Platform: Cisco 12000 series

The following software features are now processed in the hardware of Cisco 12000 series ISE line cards:

IPv6 Extended Access Control Lists on IP Services Engine (ISE) Line Cards

IPv6 Provider Edge Router over MPLS (Cisco 6PE) on IP Services Engine (ISE) Line Cards

Hardware-assisted IPv6 extended access controls lists (ACLs) and Cisco 6PE are supported on the following Cisco 12000 series ISE line cards:

4-port OC-3c/STM-1c POS/SDH ISE line card

8-port OC-3c/STM-1c POS/SDH ISE line card

16-port OC-3c/STM-1c POS/SDH ISE line card

4-port OC-12c/STM-4c POS/SDH ISE line card

1-port OC-48c/STM-16c POS/SDH ISE line card

4-port Channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

1-port Channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c, OC-12c/STM-4c) POS/SDH line card

4-port Gigabit Ethernet ISE line card


Note In Cisco IOS Release 12.0(25)S, hardware-assisted IPv6 extended ACLs and Cisco 6PE are not supported on the 4-port OC-12c/STM-4c ATM ISE line card.


For complete information about how to configure and use these IPv6 features, see the IPv6 for Cisco IOS Software documents at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm

IPv6 Extended Access Control Lists on IP Services Engine (ISE) Line Cards

On Cisco 12000 series ISE line cards, standard IPv6 access control list (ACL) functionality is used for basic traffic filtering functions—traffic filtering is based on source and destination addresses, inbound and outbound to a specific interface, and with an implicit deny statement at the end of each access list (which is functionally similar to standard ACLs in IP version 4 [IPv4]).

IPv6 ACLs are defined and their deny and permit conditions are set by using the ipv6 access-list command with the deny and permit keywords in global configuration mode.

Starting in Cisco IOS Release 12.0(25)S, the standard IPv6 ACL functionality is extended to support—in addition to traffic filtering based on source and destination addresses—filtering of traffic based on IPv6 option headers, flow label, and optional, upper-layer protocol type information for finer granularity of control (functionality similar to extended ACLs in IPv4). IPv6 ACLs are defined by using the ipv6 access-list command in global configuration mode and their permit and deny conditions are set by using the deny and permit commands in IPv6 access list configuration mode. (Configuring the ipv6 access-list command places the router in IPv6 access list configuration mode, from which permit and deny conditions can be set for the defined IPv6 ACL.)

For more information about IPv6 extended access control lists, see the "IPv6 Access Control Lists" section in the "IPv6 for Cisco IOS Software, File 1 of 3: Overview" chapter of the IPv6 for Cisco IOS Software document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/ftipv6o.htm

IPv6 Provider Edge Router over MPLS (Cisco 6PE) on IP Services Engine (ISE) Line Cards

The IPv6 Provider Edge Router over MPLS (Cisco 6PE) feature enables service providers that are running an MPLS/IPv4 infrastructure to offer IPv6 services on an MPLS network. A Cisco 6PE-enabled backbone allows IPv6 domains to communicate with each other over an MPLS IPv4 core network. A Cisco 6PE implementation requires no backbone infrastructure upgrades and no reconfiguration of core routers, because forwarding is based on labels rather than on the IPV6 header itself.

Additionally, the inherent Virtual Private Network (VPN) and Traffic Engineering (TE) services available within an MPLS environment allow IPv6 networks to be combined into VPNs or extranets over an infrastructure that supports IPv4 VPNs and MPLS-TE.

The provider edge (PE) routers at each end of the MPLS network must be IPv6-enabled. The PE routers apply an appropriate label for the address in the packet to reach the other side of the MPLS backbone. This is similar to tunneling because it allows IPv6 traffic to be transported over MPLS without the routers in the backbone being aware of the IPv6 traffic. An MPLS packet enters and exits the MPLS network on different routers, and each router must be IPv6- and 6PE-enabled.

For more information about the IPv6 Provider Edge Router over MPLS (Cisco 6PE) feature, see the "IPv6 Provider Edge Router over MPLS" section in the "IPv6 for Cisco IOS Software, File 1 of 3: Overview" chapter of the IPv6 for Cisco IOS Software document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/ftipv6o.htm

IS-IS Limit on Number of Redistributed Routes

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

The IS-IS Limit on Number of Redistributed Routes feature provides a user-defined maximum number of prefixes that are allowed to be redistributed into Intermediate System-to-Intermediate System (IS-IS) from other protocols or other IS-IS processes. Such a limit could help prevent the router from being flooded by too many redistributed routes.

For more information about the IS-IS Limit on Number of Redistributed Routes feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/fsiredis.htm


Note Support for the IS-IS Limit on Number of Redistributed Routes feature is introduced on the Cisco 10000 series in Cisco IOS Release 12.0(25)S1.


Layer 2 Tunnel Protocol Version 3 on Cisco 12000 Series 1-Port Channelized OC-12 (DS3) Line Cards

Platform: Cisco 12000 series

Starting in Cisco IOS Release 12.0(25)S, Layer 2 Tunnel Protocol version 3 (L2TPv3) is supported on Cisco 12000 series 1-port channelized OC-12 (DS3) line cards.


Note L2TPv3 support on Cisco 12000 series 1-port channelized OC-12 (DS3) line cards is also included in Release 12.0(23)S3 and Release 12.0(24)S1.


For information about how to configure and use L2TPv3, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/l2tpv325.htm

Link Fragmentation and Interleaving

Platform: Cisco 10000 series


Note This section describes the Link Fragmentation and Interleaving for Multilink PPP feature and the Frame Relay Fragmentation (FRF.12) feature. These two features are also referred to as the Link Fragmentation and Interleaving (LFI) feature.


Interactive traffic (Telnet, Voice on IP, and the like) is susceptible to increased latency and jitter when the network processes large packets (LAN-to-LAN FTP transfers that traverse a WAN link, for example), especially as they are queued on slower links.

The Link Fragmentation and Interleaving (LFI) feature reduces delay and jitter on slower-speed links by breaking up large datagrams and interleaving low-delay traffic packets (such as voice) with the smaller packets that result from the fragmented datagram. LFI was designed especially for lower-speed links in which serialization delay is significant.

LFI Benefit

The Cisco 10000 series implementation of LFI provides the following benefits:

Supports the following encapsulation protocols:

Multilink PPP (MLP)

Frame Relay (FRF.12) end-to-end

Supports LFI on up to 1000 Cisco 10000 series interfaces.

Prioritized traffic is always sent intact, while all other traffic is subject to fragmentation.

During packet reassembly, the Cisco 10000 series detects and discards any packets that are missing fragments.

Cisco 10000 Series LFI Limitations and Restrictions

The following limitations and restrictions apply to the Cisco 10000 series implementation of LFI:

Multilink LFI is restricted to 1-link bundles only.

MLP must be enabled on an interface that has interleaving turned on.

To enable LFI on an MLP interface, use the ppp multilink interleave command.

MLP over ATM (MLPoATM) is not supported.

The show frame-relay fragment command does not support the following statistics:

fragments received (in_frag)

fragments dropped (drop_frag)

fragments transmitted (out_frag)

The show frame-relay fragment interface command does not support the following statistics:

in fragmented pkts

in fragmented bytes

in dropped reassembling packets

in timeouts

out interleaved packets

out fragmented pkts

out fragmented bytes

out dropped fragmenting pkts

Further Information

For further information about the Link Fragmentation and Interleaving feature, see the "Link Fragmentation and Interleaving" section of the Release Notes for the Cisco 10000 Series ESR for Cisco IOS Release 12.0(23)SX at the following Cisco location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10krn/rn_23sx.htm


Note Support for the Link Fragmentation and Interleaving feature is introduced on the Cisco 10000 series in Cisco IOS Release 12.0(25)S1.


MQC Bandwidth in Absolute Values on the Cisco 10720

Platform: Cisco 10720

In Cisco IOS Release 12.0(24)S and earlier releases, the Cisco 10720 router supported only the percent percentage parameter in the bandwidth, priority, and shape modular QoS CLI (MQC) commands.

Starting in Cisco IOS Release 12.0(25)S, the Cisco 10720 router also supports the bandwidth-kbps parameter so that the command syntax in policy-map class configuration mode is as follows:

bandwidth {percent percentage | bandwidth-kbps}

priority {percent percentage | bandwidth-kbps}

shape {percent percentage | bandwidth-kbps}

Syntax Description

percent percentage

Percentage of available bandwidth assigned to a specified class of traffic (bandwidth), set aside for a priority class. (priority) or used in each interval of shaped traffic (shape). Valid values are from 1 to 100.

bandwidth-kbps

Amount of bandwidth, in kilobits per second (kbps), assigned to a specified class of traffic (bandwidth), as guaranteed bandwidth for the priority traffic (priority), or used in each interval of shaped traffic (shape). Valid values are from 1 to 2488320.


On the Cisco 10720, the bandwidth, priority, and shape commands are implemented so that, when you enter a bandwidth value in kilobits per second (bandwidth-kbps), the kbps value is internally converted to a number between 0 and 1023, where 1023 represents the full bandwidth in kbps of the interface or subinterface.

For more detailed information about how to use the bandwidth, priority, and shape commands on the Cisco 10720 router, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm

For more information about standard MQC command usage, see the Cisco documents at the following locations:

bandwidth command:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_r/qrfcmd1.htm

priority command:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_r/qrfcmd6.htm

shape command:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_r/qrfcmd9.htm

MPLS Quality of Service Enhancements on Cisco 12000 Series Engine 2 Line Cards

Platform: Cisco 12000 series


Note MPLS Class of Service is now referred to as MPLS Quality of Service. This transition reflects the growth of Multiprotocol Label Switching (MPLS) to encompass a wider meaning in the Any Transport over MPLS (AToM) product set.


The MPLS Quality of Service (QoS) enhancement allows service providers to set the MPLS experimental field value without modifying the value of the IP precedence field in IP packets that are transported through an MPLS core network. By choosing different values for the MPLS experimental field, service providers can mark packets based on their characteristics, such as rate or type, so that packets have the priority that they require during periods of congestion.

The following Cisco 12000 series Engine 2 (E2) line cards now support the setting of the MPLS experimental field value:

1-port OC-48c/STM-16c POS/SDH

3-port Gigabit Ethernet

4-port OC-12c/STM-4c POS/SDH

8-port OC-3c/STM-1c POS/SDH

16-port OC-3c/STM-1c POS/SDH

When a customer transmits IP packets from one site to another, the IP precedence field (the first three bits of the differentiated services code point [DSCP] field in the header of an IP packet) specifies the quality of service. Based on the IP precedence marking, the packet is given the desired treatment such as the latency or the percent of bandwidth allowed for that quality of service. If the service provider network is an MPLS network, the IP precedence bits are copied into the MPLS experimental (EXP) field at the edge of the network. However, the service provider might want to set an MPLS packet's QoS to a different value determined by the service offering.

This feature allows the service provider to set the MPLS experimental field instead of overwriting the value in the customer's IP precedence field. The IP header remains available for the customer's use; the IP packet's QoS is not changed as the packet travels through the MPLS network.

As implemented on Cisco 12000 series Engine 2 line cards in Cisco IOS Release 12.0(25)S, the MPLS QoS enhancement is not supported on the 4-port OC-12/STM-c ATM and 8-port OC-3/STM-1c ATM line cards. The MPLS QoS enhancement is implemented in the Packet Switching ASIC (PSA) for fast path packet-forwarding operations.

For more information about how to use and configure MPLS QoS, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st14/mct1214t.htm

Multicast-VPN—IP Multicast Support for MPLS VPNs

Platform: Cisco 10000 series

The Multicast-VPN—IP Multicast Support for MPLS VPNs feature enables a service provider to configure and support multicast traffic in a Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) environment. This feature supports routing and forwarding of multicast packets for each individual VPN routing and forwarding (VRF) instance, and it also provides a mechanism to transport VPN multicast packets across the service provider backbone.

The Multicast-VPN—IP Multicast Support for MPLS VPNs feature in Cisco IOS software provides the ability to support the multicast feature over a Layer 3 VPN. As enterprises extend the reach of their multicast applications, service providers can accommodate these enterprises over their MPLS core network. IP multicast is used to stream video, voice, and data to an MPLS VPN network core.

A VPN is network connectivity across a shared infrastructure, such as an Internet service provider (ISP). Its function is to provide the same policies and performance as a private network, at a reduced cost of ownership, thus creating many opportunities for cost savings through operations and infrastructure.

Historically, IP in IP generic routing encapsulation (GRE) tunnels was the only way to connect through a service provider network. Although such tunneled networks tend to have scalability issues, they represent the only means of passing IP multicast traffic through a VPN.

MPLS was derived from tag switching and various other vendor methods of IP-switching support enhancements in the scalability and performance of IP-routed networks by combining the intelligence of routing with the high performance of switching. MPLS is now used for VPNs, which is an appropriate combination because MPLS decouples information used for forwarding of the IP packet (the label) from the information carried in the IP header.

A Multicast-VPN allows an enterprise to transparently interconnect its private network across the network backbone of a service provider. The use of a Multicast-VPN to interconnect an enterprise network in this way does not change the way that enterprise network is administered, nor does it change general enterprise connectivity.

Because MPLS VPNs support only unicast traffic connectivity, deploying the Multicast-VPN feature in conjunction with MPLS VPN allows service providers to offer both unicast and multicast connectivity to MPLS VPN customers.

For more information about the Multicast-VPN—IP Multicast Support for MPLS VPNs feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/fs_mvpn.htm


Note Support for the Multicast-VPN—IP Multicast Support for MPLS VPNs feature is introduced on the Cisco 10000 series in Cisco IOS Release 12.0(25)S1.


OSPF Limit on Number of Redistributed Routes

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

The OSPF Limit on Number of Redistributed Routes feature provides a user-defined maximum number of prefixes (routes) that are allowed to be redistributed into Open Shortest Path First (OSPF) from other protocols or other OSPF processes. Such a limit could help prevent the router from being flooded by too many redistributed routes.

For more information about the OSPF Limit on Number of Redistributed Routes feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/fsoredis.htm


Note Support for the OSPF Limit on Number of Redistributed Routes feature is introduced on the Cisco 10000 series in Cisco IOS Release 12.0(25)S1.


OSPF Link-State Advertisement (LSA) Throttling

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

The OSPF Link-State Advertisement (LSA) Throttling feature provides a dynamic mechanism to slow down LSA updates in Open Shortest Path First (OSPF) during times of network instability. It also allows faster OSPF convergence by providing LSA rate-limiting in milliseconds.

For more information about the OSPF Link-State Advertisement (LSA) Throttling feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/fsolsath.htm


Note Support for the OSPF Link-State Advertisement (LSA) Throttling feature is introduced on the Cisco 10000 series in Cisco IOS Release 12.0(25)S1.


Single Rate 3-Color Marker for Traffic Policing

Platforms: Cisco 10000 series, Cisco 10720

The Single Rate 3-Color Marker for Traffic Policing feature meters an IP packet stream and marks its packets with different colors, based on the Committed Information Rate (CIR) and two associated burst sizes: Committed Burst Size (CBS) and Excess Burst Size (EBS). CIR is measured in bytes of IP packets per second (and it includes the IP header, but not link-specific headers). CBS and EBS are measured in bytes.

In earlier releases, the Cisco 10000 series and the Cisco 10720 supported a single rate, 2-color marker. The single rate, 3-color marker allows the Cisco 10000 series and the Cisco 10720 to classify packets that violate the EBS. This feature is useful, for example, for ingress policing of a service, where service eligibility is determined only by the length of the burst, and not by the peak rate of the burst.

The single rate 3-color marker uses the following colors to classify packets:

Green (conforming)—Packet size is less than or equal to the CBS value and within the CIR allowance.

Yellow (exceeding)—Packet size is greater than the CIR allowance but is less than or equal to the EBS value and within the available surplus.

Red (violating)—Packet size is greater than both the CIR allowance and the available surplus. This is either because the packet size exceeds the EBS or because a previous packet used some of the surplus and the traffic since then has not slowed sufficiently to acquire the surplus needed for the current packet.

The marker starts with a surplus equal to the EBS and replenishes the surplus by the amount of unused CIR allowance until the surplus reaches the EBS.

The 3-color marker can be used to mark a packet stream in a service in which different, decreasing levels of assurances (either absolute or relative) are given to packets which are green, yellow, or red. For example, a service might do the following:

Discard or deny all red packets because they exceed both the committed and excess burst sizes.

Forward green packets because they are guaranteed for delivery.

Configuring the Single Rate 3-Color Marker for Traffic Policing Feature on the Cisco 10000 Series

To configure the Single Rate 3-Color Marker for Traffic Policing feature, do the following:

Use the police command to set the feature's mode and to assign values for the CIR, CBS, and EBS:

Router(config-pmap-c)# police CIR CIR_bps burst-normal burst-max conform-action action exceed-action action violate-action action

For conform, exceed, and violate action, you can specify one of the following actions: transmit, set-dscp-transmit, set-prec-transmit, set-mpls-exp-transmit, or set-qos-transmit.

Configuring the Single Rate 3-Color Marker for Traffic Policing Feature on the Cisco 10720

For information about how to configure the Single Rate 3-Color Marker for Traffic Policing feature on the Cisco 10720, see the "police" section in the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/10720.htm


Note Support for the Single Rate 3-Color Marker for Traffic Policing feature is introduced on the Cisco 10000 series in Cisco IOS Release 12.0(25)S1.


New Hardware and Software Features in Cisco IOS Release 12.0(24)S1 to Cisco IOS Release 12.0(24)S6

There are no new hardware or software features in Cisco IOS Release 12.0(24)S1 to Cisco IOS Release 12.0(24)S6.

New Hardware Features in Cisco IOS Release 12.0(24)S

This section describes new and changed features in Cisco IOS Release 12.0(24)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(24)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

4-Port OC-12c/STM-4c DPT ISE Line Card

Platform: Cisco 12000 series

The 4-Port OC-12c/STM-4c DPT ISE line card provides connections for two complete OC-12c/STM-4c SRP nodes through the use of four full-duplex, single-mode, duplex LC connections.

The line card is available in the following versions:

Intermediate-reach (IR) 1310 nm with a typical reach of 9.3 miles (15 km)

Extended-reach (XR) 1550 nm with a typical reach of 49.7 miles (80 km)

For information about how to install and configure the line card, see the document at the following location:

https://www.cisco.com/en/US/products/hw/modules/ps2710/ps3146/index.html

New Software Features in Cisco IOS Release 12.0(24)S

This section describes new and changed features in Cisco IOS Release 12.0(24)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(24)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

ATM OAM Support for F5 Continuity Check

Platform: Cisco 12000 series

The ATM OAM Support for F5 Continuity Check feature introduces Operation, Administration, and Maintenance (OAM) support for the use of F5 segment and end-to-end continuity check (CC) cells to detect connectivity failures at the ATM layer. This feature also introduces new Simple Network Management Protocol (SNMP) notifications that are generated when CC cells indicate virtual circuit (VC) connectivity failure.

ATM OAM F5 CC cells provide an in-service tool optimized to detect connectivity problems at the VC level of the ATM layer. CC cells are sent between a router designated as the source location and a router designated as the sink location. The local router can be configured as the source, as the sink, or as both the source and the sink.

This feature implements two types of OAM cells: CC cells for fault management and CC cells for activation and deactivation. Fault management cells detect connectivity failures. Activation and deactivation cells initiate the activation or deactivation of continuity checking.

BGP Configuration Using Peer Templates

The BGP Configuration Using Peer Templates feature introduces a new mechanism that groups distinct neighbor configurations for Border Gateway Protocol (BGP) neighbors that share common policies. This type of policy configuration has been traditionally configured with BGP peer-groups. However, peer-groups have certain limitations because peer-group configuration is bound to update grouping and specific session characteristics. Configuration templates provide an alternative to peer-group configuration and overcome some of the limitations of peer-groups.

Configuration templates are configured and stored separately from update groups. Update grouping occurs automatically with the BGP Dynamic Update Peer-Group feature. There are two types of configuration templates: peer-policy templates and peer-session templates. Peer-policy templates are used to configure policy-related commands and do not allow session commands. Peer-session templates are used for the configuration of general session commands. General session commands that are common for neighbors that are configured in different address families can be configured within the same peer-session template. Configuration templates also support inheritance. Peer-policy templates can inherit up to five templates, whereas peer-session templates can inherit only one template.

With the configuration of the BGP Configuration Using Peer Templates feature and the support of the BGP Dynamic Update Peer-Groups feature, the network operator no longer needs to configure peer-groups in BGP and can benefit from improved configuration flexibility and system performance. However, peer-groups are still supported and do not conflict with this feature.

see the following document for additional information:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/s_bgpct.htm

BGP Cost Community

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10720, Cisco 12000 series

The BGP Cost Community feature introduces a new Border Gateway Protocol (BGP) extended community attribute called the cost community. The cost community is a nontransitive extended community attribute that is passed to internal BGP (iBGP) and confederation peers but not to external BGP (eBGP) peers. The cost community allows the network operator to customize the local route preference and influence best path selection process for specific paths. The cost community is applied to and configured for specific paths with set clauses in route maps. Multiple instances of the cost community can be configured for separate paths within the same autonomous system or confederation. The route with the lowest cost community ID will be preferred in this case.

see the following document for additional information:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/s_bgpcc.htm

BGP Dynamic Update Peer-Groups

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The BGP Configuration Using Peer Templates feature introduces a new mechanism that groups distinct neighbor configurations for Border Gateway Protocol (BGP) neighbors that share common policies. This type of policy configuration has been traditionally configured with BGP peer-groups. However, peer-groups have certain limitations because peer-group configuration is bound to update grouping and specific session characteristics. Configuration templates provide an alternative to peer-group configuration and overcome some of the limitations of peer-groups.

see the following document for additional information:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/s_bgpdpg.htm

BGP Link Bandwidth

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The Border Gateway Protocol (BGP) Link Bandwidth feature is used to advertise the bandwidth of an autonomous system exit link as an extended community. The BGP Link Bandwidth feature is supported by the internal BGP (iBGP) and external BGP (eBGP) multipath features. The link bandwidth extended community indicates the preference of an autonomous system exit link in terms of bandwidth. The link bandwidth extended community attribute may be propagated to all iBGP peers and used with the BGP multipath features to configure unequal cost load balancing. When a router receives a route from a directly connected external neighbor and advertises this route to iBGP neighbors, the router may advertise the bandwidth of that link.

see the following document for additional information:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftbgplb.htm

BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The BGP Multipath Load Sharing for eBGP and iBGP feature allows you to configure multipath load balancing with both external BGP (eBGP) and internal BGP (iBGP) paths in Border Gateway Protocol (BGP) networks that are configured to use Multiprotocol Label Switching (MPLS) Virtual Private Networks (VPNs). This feature provides improved load-balancing deployment and service-offering capabilities and is useful for multihomed autonomous systems and provider edge (PE) routers that import both eBGP and iBGP paths from multihomed and stub networks.

see the following document for additional information:

http://www.cisco.com/en/US/docs/ios/iproute_bgp/configuration/guide/irg_ebgp_ibgp_ps6922_TSD_Products_Configuration_Guide_Chapter.html

BGP Route-map Continue

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The BGP Route-map Continue feature introduces the continue clause to Border Gateway Protocol (BGP) route-map configuration. The continue clause allows for more programmable policy configuration and route filtering and introduces the capability to execute additional entries in a route map after an entry is executed with successful match and set clauses. Continue clauses allow the network operator to configure and organize more modular policy definitions so that specific policy configurations need not be repeated in different route maps. Only inbound route maps are supported.

see the following document for additional information:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/gt_brmcs.htm

Cisco 12000 Series Engine 4 Plus DPT Line Card Enhancements

New software features have been added to Cisco 12000 Series Engine 4 Plus (E4+) Dynamic Packet Transport (DPT) line cards such as the following:

Cisco 12000 Series Four-Port OC-48c/STM-16c DPT line card

Cisco 12000 Series One-Port OC-192c/STM-64c DPT line card

Starting in Cisco IOS Release 12.0(24)S, the following software features are now supported on Cisco 12000 Series E4+ DPT line cards:

MPLS Virtual Private Networks (VPNs)

MPLS Quality of Service (QoS)

MPLS Time To Live (TTL) Propagation from IP

DPT Mapping to SRP Priority

Multicast Forwarding

Modular Quality of Service Command-Line Interface

MPLS Virtual Private Networks (VPNs)

The IP Virtual Private Network (VPN) feature for Multiprotocol Label Switching (MPLS) allows a Cisco IOS network to deploy scalable IPv4 Layer 3 VPN backbone services. An IP VPN is the foundation companies use for deploying or administering value-added services including applications and data hosting network commerce and telephony services to business customers.

For more information about how to configure and use a VPN, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/fsvpn22.htm

MPLS Quality of Service (QoS)

MPLS Class of Service (CoS) functionality enables network administrators to provide differentiated services across an MPLS network. Network administrators can satisfy a wide range of networking requirements by specifying the class of service applicable to each transmitted IP packet. Different classes of service can be established for IP packets by setting the IP precedence bit in the header of each packet.

Starting in Cisco IOS Release 12.0(24)S, the following MPLS CoS features are supported on Cisco 12000 Series E4+ DPT line cards:

Packet classification using committed access rate (CAR). Packets are classified at the edge of the network before labels are assigned.

Congestion avoidance using weighted random early detection (WRED). Packet classes are differentiated on the basis of drop probability.

Congestion management using modified deficit round robin (MDRR) for Cisco 12000 series Internet routers. Packet classes are differentiated on the basis of bandwidth requirements and finite delay characteristics.


Note MPLS Class of Service is now referred to as MPLS Quality of Service (QoS). This transition reflects the growth of MPLS to encompass a wider meaning and highlight the path towards future enhancements.


For more information about how to configure MPLS CoS/QoS features, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/fs22cos.htm

MPLS Time To Live (TTL) Propagation from IP

To control the generation of the time to live (TTL) field in the MPLS header when labels are first added to an IP packet, E4+ DPT line cards support the use of the mpls ip propagate-ttl global configuration command. For more information on this command, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122sup/122csum/csum2/122csswt/xsfscmd3.htm

DPT Mapping to SRP Priority

Cisco 12000 Series E4+ DPT line cards support the use of the srp priority-map transmit min-tos-value command to set the priority map used for transmitting data packets, where the min-tos-value argument indicates the minimum type of service (ToS) value used to forward packets to the high-priority transmit queue.

For information about how to use this command to configure the Spatial Reuse Protocol (SRP) priority map, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/srpapsgs.htm#xtocid12

Multicast Forwarding

The Multicast Forwarding feature on Cisco 12000 Series E4+ DPT line cards allows hardware-based fast forwarding of IPv4 multicast traffic, resulting in high throughputs and performance.

For more information about the hardware forwarding of IP multicast packets and how to enable it on E4+ DPT line cards, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/mcast.htm

Modular Quality of Service Command-Line Interface

The modular quality of service (QoS) feature allows you to specify a traffic class independently of QoS policies. You use the modular QoS command-line interface (MQC) to configure (QoS) policies that you apply to an E4+ DPT interface. In Cisco IOS Release 12.0(24)S, QoS policies configured with MQC are supported only in the outbound direction on Cisco 12000 Series E4+ DPT interfaces.

For complete documentation on MQC configuration commands and tasks, and how to use MQC, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/

Cisco 12000 Series IP Services Engine (ISE) Line Card Enhancements

New software features have been added to Cisco 12000 Series IP Services Engine (ISE) line cards such as the following:

Cisco 12000 Series Four-Port OC-3c/STM-1c POS/SDH ISE line card

Cisco 12000 Series Eight-Port OC-3c/STM-1c POS/SDH ISE line card

Cisco 12000 Series Sixteen-Port OC-3c/STM-1c POS/SDH ISE line card

Cisco 12000 Series Four-Port OC-12c/STM-4c POS/SDH ISE line card

Cisco 12000 Series One-Port OC-48c/STM-16c POS/SDH ISE line card

Cisco 12000 Series Four-Port Channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

Cisco 12000 Series One-Port Channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

Starting in Cisco IOS Release 12.0(24)S, the following software features are now supported on Cisco 12000 Series ISE line cards:

MPLS Traffic Engineering Fast Reroute (FRR)

MPLS VPN—VRF Selection based on Source IP Address

Source based BGP Policy Accounting Release

Stateful Switchover (SSO)

Cisco Nonstop Forwarding (NSF)

MPLS Traffic Engineering Fast Reroute (FRR)

The MPLS Traffic Engineering Fast Reroute (FRR) — Link Protection feature is supported on Cisco 12000 Series ISE line cards. The Fast Reroute feature provides link protection to label-switched paths (LSPs).

Regular MPLS traffic engineering automatically establishes and maintains label-switched paths across the backbone using the Resource Reservation Protocol (RSVP). The path used by a given LSP at any point in time is based upon the LSP resource requirements and available network resources such as bandwidth.

Available resources are flooded via extensions to a link-state based Interior Gateway Protocol (IGP), such as Intermediate System-to-Intermediate System (IS-IS) or Open Shortest Path First (OSPF). Paths for LSPs are calculated at the LSP headend. Under failure conditions, the headend determines a new route for the LSP. Recovery at the headend provides for the optimal use of resources. However, because of messaging delays, the headend cannot recover as fast as possible by making a repair at the point of failure.

By providing link protection to LSPs, the Fast Reroute feature enables all traffic carried by LSPs that traverse a failed link to be rerouted around the failure. The reroute decision is completely controlled locally by the router interfacing the failed link. The headend of the tunnel is also notified of the link failure through IGP or RSVP; the headend then attempts to establish a new LSP that bypasses the failure.

For more information about the MPLS FRR feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fs_frrnd.htm

MPLS VPN—VRF Selection based on Source IP Address

The VPN Routing and Forwarding (VRF) Selection feature allows a Cisco 12000 series ISE interface on a provider edge (PE) router to route packets to different Virtual Private Networks (VPNs) on the basis of the source IP address of the packet. This feature is an improvement over using a policy-based router to route packets to different VPNs.

The VRF Selection feature allows packets that arrive on an interface to be switched into the appropriate VRF table on the basis of the source IP address of the packets. Once the packets have been "selected" into the correct VRF routing table, they are processed normally on the basis of the destination address and forwarded through the rest of the Multiprotocol Label Switching (MPLS) VPN.

For more information about the MPLS VPN - VRF Selection feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/vrfselec.htm

Source based BGP Policy Accounting Release

The BGP policy accounting feature allows you to account for IP traffic differentially by assigning counters based on community list, autonomous system (AS) number, and/or AS-path on a per input interface basis. For the policy accounting feature to work, you must enable BGP and Cisco Express Forwarding/distributed Cisco Express Forwarding (CEF/dCEF) on the Cisco 12000 series Internet router.

Using BGP policy accounting, you can account for traffic (and apply billing) according to the route it traverses. For example, you can account for traffic that is routed by domestic, international, terrestrial, or satellite routes. In this way, you can identify and account for all traffic on a per-customer basis.

Cisco 12000 series ISE line cards support source-based BGP policy accounting in addition to destination-based BGP accounting. In source-based BGP policy accounting, the source IP address of routed traffic is used instead of the destination IP address to classify traffic according to the configured BGP accounting policy and to update the counters for a given traffic category.

On Cisco 12000 series ISE line cards, BGP policy accounting supports the Stateful Switchover (SSO)/Nonstop Forwarding (NSF) features.

For more information about the BGP policy accounting feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/s_bgppax.htm

Stateful Switchover (SSO)

The Stateful Switchover (SSO) feature is an incremental step within an overall program to improve the availability of networks constructed with Cisco IOS routers. SSO is particularly useful at the network edge. Traditionally, core routers protect against network faults using router redundancy and mesh connections that allow traffic to bypass failed network elements. SSO provides protection for network edge devices with dual Route Processors (RPs) that represent a single point of failure in the network design, and where an outage might result in loss of service for customers.

In specific Cisco networking devices that support dual RPs, SSO takes advantage of RP redundancy to increase network availability. The SSO feature takes advantage of RP redundancy by establishing one of the RPs as the active processor while the other RP is designated as the standby processor, and then synchronizing critical state information between them. Following an initial synchronization between the two processors, SSO dynamically maintains RP state information between them.

A switchover from the active to the standby processor occurs when the active RP fails, is removed from the networking device, or is manually taken down for maintenance.

SSO is used with the Cisco Nonstop Forwarding (NSF) feature. Cisco NSF allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. With Cisco NSF, peer networking devices do not experience routing flaps, thereby reducing loss of service outages for customers.

For more information about the Stateful Switchover feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/sso24s.htm

Cisco Nonstop Forwarding (NSF)

Cisco Nonstop Forwarding (NSF) works with the Stateful Switchover (SSO) feature in Cisco IOS software. SSO is a prerequisite of Cisco NSF. NSF works with SSO to minimize the amount of time a network is unavailable to its users following a switchover. The main objective of Cisco NSF is to continue forwarding IP packets following a Route Processor (RP) switchover.

Usually, when a networking device restarts, all routing peers of that device detect that the device went down and then came back up. This transition results in what is called a routing flap, which could spread across multiple routing domains. Routing flaps caused by routing restarts create routing instabilities, which are detrimental to the overall network performance. Cisco NSF helps to suppress routing flaps in SSO-enabled devices, thus reducing network instability.

Cisco NSF allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. With Cisco NSF, peer networking devices do not experience routing flaps. Data traffic is forwarded through intelligent line cards or dual Forwarding Processors (FPs) while the standby RP assumes control from the failed active RP during a switchover. The ability of line cards and FPs to remain up through a switchover and to be kept current with the Forwarding Information Base (FIB) on the active RP is key to Cisco NSF operation.

For more information about the Nonstop Forwarding feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/nsf24s.htm

CISCO-APS-EXT-MIB

Platform: Cisco 12000 series

The Cisco SONET Linear Automatic Protection Switching (APS) allows switchover of Packet-over-SONET (POS) circuits in case of circuit failure. APS is a mechanism in which the protect POS interface acts as a backup to the working POS interface.

The CISCO-APS-EXT-MIB module extends the CISCO-APS-MIB by adding the following objects:

cApsChanConfigExtTable—augments cApsChanConfigTable in the CISCO-APS-MIB.

cApsChanAssociationTable—provides the associated working or protection channel IP address for all protection and working channels.

No new or modified Cisco IOS commands are associated with this MIB. For details on managed objects within the Cisco SONET Linear APS MIB, see the CISCO-APS-MIB.my MIB file. MIB information is available at the following location:

http://tools.cisco.com/ITDIT/MIBS/servlet/index

Cisco ATM QoS MIB

The new Cisco ATM QoS MIB (CISCO-ATM-QOS-MIB) and its defined objects support quality of service (QoS) parameters configured for a virtual channel (VC) over an ATM interface through use of the following features:

Shaping traffic on a per-VC basis

Shaping traffic on a per-virtual path (VP) basis

Configuring Weighted Random Early Detection (WRED) parameters per VC


Note This is a read-only MIB.


For details, see the CISCO-ATM-QOS-MIB.my file, available through the Cisco MIB FTP site at the following location:

http://tools.cisco.com/ITDIT/MIBS/servlet/index

CISCO-ENHANCED-WRED-MIB Support for Cisco 12000 Series Internet Routers

Cisco Weighted Random Early Detection (WRED)/Drop is a method that avoids traffic congestion on an output interface. Congestion is detected by computing the average output queue size against queue thresholds, which can be configured per IP precedence or can be based on differentiated services code point (DSCP). WRED support is on the IP fast switching and IP flow switching only. It does not apply to IP process switching.

The purpose of the CISCO-ENHANCED-WRED-MIB is to provide Weighted Random Early Detection/Drop packet configuration and packet filtering information. This MIB provides the WRED information about the transmit (Tx) side and receive (Rx) side of the modules, for the managed systems that support WRED on both transmit side and receive side.

This feature supports the CISCO ENHANCED WRED MIB on Cisco 12000 series Internet routers and is implemented on the basis on the legacy CoS CLI used on Cisco 12000 series Internet routers.

Cisco Extension to the Interfaces MIB (CISCO-IF-EXTENTION-MIB)

The Cisco Extension to the Interfaces MIB (CISCO-IF-EXTENTION-MIB) feature introduces support for the Cisco Extension to the Interfaces (IF) MIB. The CISCO-IF-EXTENTION-MIB implements Cisco specific extensions to the Interface MIB (RFC 2233). These extensions are, specifically, two tables that provide information about interface packet statistics and interface properties. Details on these extensions can be found in the MIB file CISCO-IF-EXTENTION-MIB.my { ciscoMgmt 276 }.

No new or modified Cisco IOS commands are associated with this feature.

CISCO-FABRIC-C12K-MIB

Platform: Cisco 12000 series

The CISCO-FABRIC-C12K-MIB module is used to manage and track Cisco 12000 series Internet router fabric entities and fabric-related configuration, as well as status and statistics information.

The Cisco 12000 series Internet router fabric architecture is based on NxN nonblocking crossbar switch fabric, where N stands for the maximum number of line cards that can be supported in the chassis, including the Route Processor. Connections through the switch fabric are controlled by a clock scheduler card (CSC). The CSC accepts transmission requests from line cards, issues grants to access the fabric, and provides a reference clock to all the cards in the system to synchronize data transfer across the crossbar.

The basic components and entities related to fabric in the Cisco 12000 series Internet router are the following:

ToFabFIA—To Fabric Interface ASIC that transmits data from the line card to the fabric.

FrFabFia—From Fabric Interface ASIC that receives data from the fabric.

SCA—Scheduler Control ASIC that resides on each CSC and is used to arbitrate among the line card requests to transmit CiscoCells through the switch fabric.

XBAR—Crossbar Switch ASIC that resides on each fabric card and provides the functionality of a crossbar switch.

The CISCO-FABRIC-C12K-MIB provides information regarding these fabric entities. The MIB is divided into three basic groups for each fabric entity:

Generic information that is common across pre-OC192 and OC192 fabric entities.

Information about pre-OC192 fabric entities.

Information pertaining to OC192 fabric entities.

The following Cisco IOS commands have been modified for use with this MIB:

snmp-server enable traps c12k-fabric to enable traps for the CISCO-FABRIC-C12K-MIB.

snmp-server host host-addr traps version {1 | 2c | 3 [auth | noauth | priv]} public c12k-fabric to specify the recipient of the SNMP notifications (traps) generated by the CISCO-FABRIC-C12K-MIB, where version {1 | 2c | 3 [auth | noauth | priv]} is the SNMP version used to send the traps.

For more detailed information about the snmp-server enable traps and snmp-server host command syntax and usage, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/fun_r/frprt3/frd3001.htm

For details on managed objects within the CISCO-FABRIC-C12K-MIB, see CISCO-FABRIC-C12K-MIB.my MIB file.

Cisco Nonstop Forwarding with Stateful Switchover on Cisco 12000 Series Line Cards

Support for the Cisco Nonstop Forwarding with Stateful Switchover (NSF/SSO) feature has been added to the following Cisco 12000 Series line cards:

Engine 1

Cisco 12000 Series 2-Port OC-12/STM-4c DPT line card

Engine 2

Cisco 12000 Series 1-Port OC-48/STM-16c DPT line card

Cisco 12000 Series 8-Port OC-3/STM-1c ATM line card

IP Services Engine (ISE)

Cisco 12000 Series Four-Port OC-3c/STM-1c POS/SDH ISE line card

Cisco 12000 Series Eight-Port OC-3c/STM-1c POS/SDH ISE line card

Cisco 12000 Series Sixteen-Port OC-3c/STM-1c POS/SDH ISE line card

Cisco 12000 Series Four-Port OC-12c/STM-4c POS/SDH ISE line card

Cisco 12000 Series One-Port OC-48c/STM-16c POS/SDH ISE line card

Cisco 12000 Series Four-Port Channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

Cisco 12000 Series One-Port Channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c) POS/SDH, OC-12c/STM-4c ISE line card

The Stateful Switchover (SSO) feature is an incremental step within an overall program to improve the availability of networks constructed with Cisco IOS routers. SSO is particularly useful at the network edge. Traditionally, core routers protect against network faults using router redundancy and mesh connections that allow traffic to bypass failed network elements. SSO provides protection for network edge devices with dual Route Processors (RPs) that represent a single point of failure in the network design, and where an outage might result in loss of service for customers.

In specific Cisco networking devices that support dual RPs, SSO takes advantage of RP redundancy to increase network availability. The SSO feature takes advantage of RP redundancy by establishing one of the RPs as the active processor while the other RP is designated as the standby processor, and then synchronizing critical state information between them. Following an initial synchronization between the two processors, SSO dynamically maintains RP state information between them.

A switchover from the active to the standby processor occurs when the active RP fails, is removed from the networking device, or is manually taken down for maintenance.

SSO is used with the Cisco Nonstop Forwarding (NSF) feature. Cisco NSF allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. With Cisco NSF, peer networking devices do not experience routing flaps, thereby reducing loss of service outages for customers.

The Cisco Nonstop Forwarding with Stateful Switchover feature was introduced in Cisco IOS Release 12.(22)S. In Cisco IOS Release 12.0(24)S, this feature is ported to Cisco 12000 Series 2-Port OC-12 DPT, 1-Port OC-48 DPT, 8-Port OC-3 ATM, and IP Services Engine (ISE) line cards.

For more information about the Stateful Switchover feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/sso24s.htm

For more information about the Cisco Nonstop Forwarding feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/nsf24s.htm

CISCO-PSA-MICROCODE-MIB

Platform: Cisco 12000 series

The CISCO-PSA-MICROCODE-MIB contains information about the microcode bundles on Engine 2 line cards in the Cisco 12000 series Internet router.

The Packet Switching ASIC (PSA) is used in Cisco 12000 series Engine 2 line cards for IP and Multiprotocol Label Switching (MPLS) packet forwarding. PSA supports features such as basic IP forwarding, basic MPLS forwarding, Per Interface Rate Control (PIRC), extended access control lists (EACLs), and so on.

Note that all features are not supported simultaneously on an Engine 2 line card. Each microcode bundle supports one or a limited number of features. Each bundle has a priority. When a feature is enabled through the command-line interface, the higher priority feature/bundle takes precedence over the lower priority features/bundles. The microcode bundle for the lower priority is removed and cleaned up. The higher priority microcode is loaded. Later, if the higher priority feature is removed, the lower priority microcode will be loaded again.

The following Cisco IOS commands have been modified for use with this MIB:

snmp-server enable traps psa to enable traps for the CISCO-PSA-MICROCODE-MIB.

snmp-server host host-addr traps version {1 | 2c | 3 [auth | noauth | priv]} public psa to specify the recipient of the SNMP notifications (traps) generated by the CISCO-PSA-MICROCODE-MIB, where version {1 | 2c | 3 [auth | noauth | priv]} is the SNMP version used to send the traps.

For more detailed information about the snmp-server enable traps and snmp-server host command syntax and usage, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/fun_r/frprt3/frd3001.htm

For details on managed objects within the CISCO-PSA-MICROCODE-MIB, see the CISCO-PSA-MICROCODE-MIB.my MIB file, available from the Cisco MIB FTP site at the following location:

http://tools.cisco.com/Support/SNMP/do/BrowseMIB.do?local=en&step=2

Class-Based QoS MIB for the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

Platform: Cisco 12000 series

The Class-Based Quality of Service (QoS) MIB is now supported on the Cisco 12000 series 8-Port OC-3/STM-1 ATM line card. The Class-Based QoS MIB contains statistical information about the per-VC (virtual circuit) CoS (class of service) queues in the line card.

To configure quality of service on the 8-Port OC-3/STM-1 ATM line card, use the modular QoS command-line interface (MQC). For complete documentation on MQC configuration commands and tasks and for general information on how to configure the MQC, see the Modular Quality of Service Command-Line Interface at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/mcli.htm

The following Cisco IOS command has been modified for use with this MIB:

show atm pvc vpi/vci queue-stats

Where vpi/vci are the ATM virtual path identifier (VPI) and virtual circuit identifier (VCI) numbers.

Use the show atm pvc vpi/vci queue-stats command to display the CoS queue statistics associated with the VCs identified by the vpi/vci combination. The CoS queue statistics include current queue depth, maximum current queue depth, current average queue depth, queue output packet counter, and queue drop packet count.

For more detailed information about the show atm pvc command syntax and usage, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/wan_r/wroampvc.htm

Because the 8-Port OC-3/STM-1 ATM line card supports only a subset of the MQC features, the Class-Based QoS MIB used with the 8-Port OC-3/STM-1 ATM line card supports only certain MQC objects. For details on the objects managed within the Class-Based QoS MIB, see the CISCO-CLASS-BASED-QOS-MIB.my MIB file, available from the Cisco MIB FTP site at the following location:

http://tools.cisco.com/Support/SNMP/do/BrowseMIB.do?local=en&step=2

Distributed Link Fragmentation and Interleaving over Leased Lines

Platform: Cisco 7500 series

The Distributed Link Fragmentation and Interleaving (dLFI) over Leased Lines feature introduces distributed link fragmentation and interleaving functionality on the VIP-enabled Cisco 7500 series routers to leased lines.

The dLFI feature supports the transport of real-time traffic, such as voice, and non-real-time traffic, such as data, on leased lines without causing excessive delay to the real-time traffic.

This feature is implemented using multilink PPP (MLP) over leased lines on VIP-enabled Cisco 7500 series routers. The feature enables delay-sensitive real-time packets and non-real-time packets to share the same link by fragmenting the large data packets into a sequence of smaller data packets (fragments). The fragments are then interleaved with the real-time packets. On the receiving side of the link, the fragments are reassembled and the packet reconstructed.

The dLFI feature is often useful in networks that send real-time traffic using Distributed Low Latency Queueing, such as voice, but have bandwidth problems that delay this real-time traffic because of the transport of large, less time-sensitive data packets. The dLFI feature can be used in these networks to disassemble the large data packets into multiple segments. The real-time traffic packets can then be sent between these segments of the data packets. In this scenario, the real-time traffic does not experience a lengthy delay waiting for the low-priority data packets to traverse the network. The data packets are reassembled at the receiving side of the link, so the data is delivered intact.

The ability to configure Quality of Service (QoS) using the Modular QoS CLI while also using distributed MLP (dMLP) is also introduced as part of the dLFI feature. This ability was not supported prior to the introduction of the dLFI feature.

Distributed Multilink Frame Relay

Platform: Cisco 7500 series

The Multilink Frame Relay feature introduces functionality based on the Frame Relay Forum Multilink Frame Relay UNI/NNI Implementation Agreement (FRF.16). This feature provides a cost-effective way to increase bandwidth for particular applications by enabling multiple serial links to be aggregated into a single bundle of bandwidth. Multilink Frame Relay is supported on User-to-Network Interfaces (UNIs) and Network-to-Network Interfaces (NNIs) in Frame Relay networks.

Hierarchical Policy Map

Platform: Cisco 10720

You can use a hierarchical policy map to specify a parent shaper for a given interface or subinterface (802.1Q). Under the parent shaper, you can specify a child policy map to configure multiple user queues such as shaped, fair, priority and default.

Use this feature to offer fractional bandwidth service on a Gigabit Ethernet or Fast Ethernet access interface. When you configure an interface with fractional bandwidth, the packet dequeue rate does not exceed the configured fractional value.

IP Receive ACL

Platform: Cisco 7500 series


Note Support for the IP Receive ACL feature was introduced on the Cisco 12000 series Internet router in Cisco IOS Release 12.0(22)S.


The IP Receive ACL feature provides basic filtering capability for traffic that is destined for the router; that is, the router can protect high-priority routing protocol traffic from an attack because the filtering occurs after any input access control list (ACL) on the ingress interface.

This feature may be implemented in a security solution to protect a router from remote intrusions. Access to the router can be restricted to known, trusted sources and expected traffic profiles.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/ft_ipacl.htm

IP Version 6 on the Cisco 10720 Internet Router

IP version 6 (IPv6), formerly called IPng (next generation), is the latest version of IP that offers many benefits, such as a larger address space, over the previous version of IP (version 4). On the Cisco 10720 Internet Router, IPv6 is implemented so that packets are routed through the Route Processor and, therefore, take the slow path.

For complete information about the IPv6 features supported on the Cisco 10720 Internet router, including IPv6 provider edge router over MPLS (Cisco 6PE), see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/10720.htm

IPv6 Provider Edge Router over MPLS (Cisco 6PE) on the Cisco 10720 Internet Router

The IPv6 Provider Edge Router over MPLS (Cisco 6PE) feature allows service providers that are running an MPLS/IPv4 infrastructure to offer IPv6 services on an MPLS network. A Cisco 6PE-enabled backbone allows IPv6 domains to communicate with each other over an MPLS IPv4 core network. A Cisco 6PE implementation requires no backbone infrastructure upgrades and no reconfiguration of core routers, because forwarding is based on labels rather than on the IP header itself.

Additionally, the inherent Virtual Private Network (VPN) and Traffic Engineering (TE) services available within an MPLS environment allow IPv6 networks to be combined into VPNs or extranets over an infrastructure that supports IPv4 VPNs and MPLS-TE.

The provider edge (PE) routers at each end of the MPLS network must be IPv6-enabled. The PE routers apply an appropriate label for the address in the packet to reach the other side of the MPLS backbone. This is similar to tunneling because it allows IPv6 traffic to be transported over MPLS without the routers in the backbone being aware of the IPv6 traffic. An MPLS packet enters and exits the MPLS network on different routers, and each router must be IPv6- and 6PE-enabled.

For more information about the IPv6 Provider Edge Router over MPLS (Cisco 6PE) feature, see the following document:

http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/iosip_an.htm

IS-IS Incremental SPF

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series,
Cisco 12000 series

Intermediate System-to-Intermediate System (IS-IS) can be configured to use an incremental Shortest Path First (SPF) algorithm for calculating the SPF routes. Incremental SPF is more efficient, thereby allowing IS-IS to converge faster on a new routing topology in reaction to a network event.

L2TPv3 Enhancements on the Cisco 10720 Internet Router

Starting in Cisco IOS Release 12.0(24)S, the Cisco 10720 Internet router supports the following features:

Path MTU Discovery

IS-IS Packet Fragmentation

IP ToS Reflection

Don't Fragment (DF) Bit Reflection

Variable Cookie Size

For more detailed information about how these L2TPv3 features are supported on the Cisco 10720 Internet router, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/10720.htm

Path MTU Discovery

The Path MTU Discovery feature allows you to use the ip pmtu command to enable the discovery of an L2TPv3 path's maximum transmission unit (MTU). All packets (except IS-IS packets) that are sent in an L2TPv3 tunneling session having a size larger than the PMTU of the session are dropped. If an IP packet is dropped, an Internet Control Message Protocol (ICMP) unreachable message is sent back to the originator of the packet.

IS-IS Packet Fragmentation

The fragmentation of Intermediate System-to-Intermediate System (IS-IS) packets occurs in an L2TPv3 session if the size of the IS-IS packet exceeds the configured MTU of the L2TPv3 tunnel. IS-IS protocol packet fragmentation is supported only for dynamic L2TPv3 sessions.

IP ToS Reflection

The IP Type of Service (ToS) Reflection feature allows you to use the ip tos command to have the ToS byte in the outer headers of L2TPv3 tunneled packets reflected from the inner IP header of the encapsulated packet.

Don't Fragment (DF) Bit Reflection

In an L2TPv3 session, the destination of encapsulated packets in the provider edge (PE) network is the decapsulation router. To avoid congestion caused by the reassembly of fragments at the decapsulation router, you can use the ip dfbit set command to enable the DF bit on the encapsulating IP header. The DF bit results in packets being dropped in the provider network whenever the packet size exceeds the maximum transmission unit (MTU).

Variable Cookie Size

The L2TPv3 header contains a control channel cookie field that is similar to the UTI control channel key field. However, on the Cisco 10720 Internet router, the control channel cookie field has a variable length of 0, 4, or 8 bytes for packet encapsulation to a remote PE router. The Cisco 10720 Internet router supports only an 8-byte cookie locally for packet decapsulation.

You can manually configure the control channel cookie length for static sessions using the l2tp cookie remote command, or you can allow it to be dynamically determined for dynamic sessions.

L2TPv3 Enhancements on the Cisco 12000 Series Internet Router

In Cisco IOS Release 12.0(24)S, the following L2TPv3 enhancements are supported on Packet-over-SONET (POS) and Ethernet interfaces on the Cisco 12000 series Internet router using an Engine 2 (E2) tunnel server card:

Variable Cookie Size for Packet Decapsulation

Sequence Number Support

Quality of Service Using ToS Reflection

VLAN Support Using VLAN ID Rewrites

Don't Fragment (DF) Bit Reflection

Packet Fragmentation at Customer-Facing Interface (CFI)

For more information about how to configure and use Layer 2 Tunneling Protocol Version 3 on Cisco 12000 series Internet routers, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/l2tpv3.htm

Layer 2 Tunnel Protocol Version 3 Fragmentation

Platforms: 7200 series, 7500 series, 12000 series

The Layer 2 Tunnel Protocol Version 3 Fragmentation feature expands on Cisco support of Layer 2 Tunnel Protocol Version 3 (L2TPv3). Previous Cisco IOS releases contained only limited support of L2TPv3. L2TPv3 control plane support and new commands for configuring both static and dynamic L2TPv3 sessions were introduced in Cisco IOS Release 12.0(23)S. Cisco IOS Release 12.0(24)S introduces support of IP packet fragmentation before the packets enter the pseudo wire, forcing the reassembly of fragmented packets to occur in the customer edge (CE) network rather than in the service provider network.

L2TPv3 is an Internet Engineering Task Force (IETF) working group draft that provides several enhancements to tunnel any Layer 2 payload over L2TP. Specifically, L2TPv3 defines the L2TP protocol for tunneling Layer 2 payloads over an IP core network using Layer 2 Virtual Private Networks (VPNs).

Leased Line SNMP MIB Enhancements

MIB capabilities on the Cisco 10000 series ESR have been enhanced as follows:

The CISCO-ENTITY-EXT-MIB and CISCO-OAM-MIB were added.

Support was verified for the following MIBs:

ATM-MIB

CISCO-AAL5-MIB

CISCO-ATM-EXT-MIB

SONET-MIB, RFC1315-MIB

CISCO-FRAME-RELAY-MIB

CISCO-RF-MIB

Support was added for MPLS-LSR-MIB mplsInSegmentOctets.

The IF-MIB was enhanced to support MPLS.

MIBs were enhanced to support the ESR high-availability feature.

For more information about ESR MIB capabilities, see the Cisco 10000 Series ESR Leased Line MIB Specifications Guide (version 3) at the following URL:

http://cisco.com/univercd/cc/td/doc/product/aggr/10000/10kmibs/llguides/llgdv3/index.htm

Microcode Bundle Manager on Cisco 12000 Series Engine 2 Line Cards

The Microcode Bundle Manager provides an enhancement to the mechanism currently used to load and unload microcode bundles on the packet-switching ASIC (PSA) of Engine 2 (E2) line cards on the Cisco 12000 series Internet router. The Microcode Bundle Manager has the following benefits:

Provides a simpler way to manage the complexity of the increasing number of software features supported on E2 line cards.

Ensures that the correct microcode bundle is consistently and reliably loaded (or unloaded) when you enable (or disable) a software feature on an E2 line card.

MPLS COS Transparency on Cisco 12000 E4+ DPT Line Cards

MPLS COS Transparency is supported on the 1-port OC-192/STM-64 E4+ DPT line card and on the 4-port OC-48/STM-16 E4+ DPT line card.

MPLS LDP MIB Version 8 Upgrade

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) MIB Version 8 Upgrade feature enhances the LDP MIB to support the Internet Engineering Task Force (IETF) draft version 8.

MPLS Traffic Engineering Fast Reroute on the Cisco 10720 Internet Router

The MPLS Traffic Engineering Fast Reroute (FRR) feature is supported on the Cisco 10720 2-Port OC-48c/STM-16c POS/DPT uplink card in POS mode only. The Fast Reroute feature provides link protection to label-switched paths (LSPs).

Regular MPLS traffic engineering automatically establishes and maintains label-switched paths across the backbone using the Resource Reservation Protocol (RSVP). The path used by a given LSP at any point in time is based upon the LSP resource requirements and available network resources such as bandwidth.

For more information about the MPLS FRR feature, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fs_frrnd.htm

MPLS VPN—Carrier Supporting Carrier on the Cisco 10720 Internet Router

The MPLS VPN Carrier Supporting Carrier (CsC) feature enables one MPLS VPN-based service provider to allow other service providers to use a segment of its backbone network. The Cisco 10720 Internet router now supports the Carrier Supporting Carrier feature with IPv4 BGP label distribution.

The MPLS VPN CsC feature with IPv4 BGP label distribution allows you to configure your carrier supporting carrier network to enable Border Gateway Protocol (BGP) to transport routes and Multiprotocol Label Switching (MPLS) labels between the backbone carrier provider edge (PE) routers and the customer carrier customer edge (CE) routers. Previously you had to use Label Distribution Protocol (LDP) to carry the labels and an interior gateway protocol to carry the routes between PE and CE routers to achieve the same goal.

For more information about how to use the Carrier Supporting Carrier feature with IPv4 BGP label distribution, see the following document: http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/fscsc22.htm

MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution

The MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution feature enables you to configure your carrier supporting carrier network to enable Border Gateway Protocol (BGP) to transport routes and Multiprotocol Label Switching (MPLS) labels between the backbone carrier provider edge (PE) routers and the customer carrier customer edge (CE) routers. Previously you had to use Label Distribution Protocol (LDP) to carry the labels and an interior gateway protocol to carry the routes between PE and CE routers to achieve the same goal.

For additional information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/fscscl24.htm

MPLS VPN—Inter-AS—IPv4 BGP Label Distribution

The MPLS VPN—Inter-AS—IPv4 BGP Label Distribution feature enables you to set up a Virtual Private Network (VPN) service provider network so that the autonomous system boundary routers (ASBRs) exchange IPv4 routes with Multiprotocol Label Switching (MPLS) labels of the provider edge (PE) routers. Route reflectors (RRs) exchange VPNv4 routes by using multihop, multiprotocol, Exterior Border Gateway Protocol (EBGP). This configuration saves the ASBRs from having to store all the VPNv4 routes. Using the route reflectors to store the VPNv4 routes and forward them to the PE routers results in improved scalability.

For additional information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/fsiasl24.htm

MPLS VPN—Interautonomous System Support

The MPLS VPN—Interautonomous System Support feature allows Multiprotocol Label Switching Virtual Private Network (MPLS VPN) to span service providers and autonomous systems. Separate autonomous systems from different service providers can communicate by exchanging IPv4 Network Layer Reachability Information (NLRI) in the form of VPN-IPv4 addresses. The autonomous systems' border edge routers use Exterior Border Gateway Protocol (EBGP) to exchange that information. Then, an interior gateway protocol distributes the network layer information for VPN-IPv4 prefixes throughout each VPN and each autonomous system.

An MPLS VPN with interautonomous system support allows a service provider to provide to customers scalable Layer 3 VPN services, such as web hosting, application hosting, interactive learning, electronic commerce, and telephony service. A VPN service provider supplies a secure, IP-based network that shares resources on one or more physical networks.

For additional information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/fsias24.htm

MPLS-aware NetFlow

Platform: Cisco 12000 series

Multiprotocol Label Switching (MPLS)-aware NetFlow is an extension of the NetFlow feature. NetFlow traditionally provides statistics for IPv4 traffic. MPLS-aware NetFlow provides per-flow statistics for traffic in MPLS-enabled networks. The network administrator can turn on MPLS-aware NetFlow inside an MPLS cloud on a subset of provider (P) backbone routers. These routers can export MPLS-aware NetFlow data in real time to an external NetFlow collector device for further processing or to a data terminal for analysis. MPLS-aware NetFlow statistics can be used for detailed MPLS traffic studies and analysis.

For additional information, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/fsmnf24.htm

MQC Enhancements on the Cisco 10720 Internet Router

Starting in Cisco IOS Release 12.0(24)S, the Cisco 10720 Internet router supports the following modular quality of service (QoS) features that you configure using the modular QoS command-line interface (MQC):

Fractional Bandwidth

Per-VLAN Queuing

Distribution of Remaining Bandwidth

Turbo QoS Classifier

For more information about how these MQC features are supported on the Cisco 10720 Internet router, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/10720.htm

Fractional Bandwidth

You can use MQC to configure the output bit rate of a Cisco 10720 Ethernet, POS, or SRP port to be a fractional percentage of its maximum output. When you configure an interface with fractional bandwidth, the packet dequeue rate does not exceed the configured fractional value. Also, as long as the Cisco 10720 Internet router does not experience system-wide congestion, traffic on the interface is serviced at the specified fractional bandwidth.

Per-VLAN Queuing

You can use MQC to configure output packet queues for an 802.1q VLAN on a Cisco 10720 Ethernet interface. When you configure a VLAN queue, you must specify the amount of bandwidth reserved for the VLAN. Once VLAN queuing is configured, the packet dequeue rate does not exceed the specified rate. Also, as long as the Cisco 10720 Internet router does not experience system-wide congestion, traffic on the VLAN interface is serviced at the specified bandwidth.

Distribution of Remaining Bandwidth

You can use MQC to specify how the "remaining" bandwidth is distributed among the output queues on a Cisco 10720 Ethernet interface or subinterface. "Remaining" bandwidth is the available bandwidth left on an Ethernet interface or subinterface after all guaranteed traffic is accounted for. The amount of remaining bandwidth available for use is determined by the excess information rate (EIR) configured for the queue.

Turbo QoS Classifier

MQC match statements are normally searched sequentially to find a matching rule. Because of the increasing needs and requirements for better packet classification, the MQC matching process can expand to the point that searching through MQC class maps adds a significant amount of PXF feedback when packets are being forwarded.

The Turbo Quality of Service (QoS) Classifier feature compiles the MQC class maps into a set of lookup tables, similar to the Turbo ACL feature. Packet headers are used to access these tables in a small, fixed number of lookups, independently of the existing number of class-map entries. This feature dramatically reduces the need for feedback on the Cisco 10720 as a single lookup is needed per lookup table.

OSPF Forwarding Adjacency

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The Open Shortest Path First (OSPF) Forwarding Adjacency feature adds OSPF support to the Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Forwarding Adjacency feature, which allows a network administrator to handle a traffic engineering, label-switched path (LSP) tunnel as a link in an Interior Gateway Protocol (IGP) network based on the Shortest Path First (SPF) algorithm. An OSPF forwarding adjacency can be created between routers in the same area.

OSPF Incremental SPF

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

Open Shortest Path First (OSPF) can be configured to use an incremental Shortest Path First (SPF) algorithm for calculating the SPF routes. Incremental SPF is more efficient, thereby allowing OSPF to converge faster on a new routing topology in reaction to a network event.

OSPF Route Map-Based Filtering

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

Users can define a route map to prevent Open Shortest Path First (OSPF) routes from being added to the routing table. In the route map, the user can match on any attribute of the OSPF route.

OSPF for IPv6

Platforms: Cisco 10700 series, Cisco 12000 series

The Open Shortest Path First (OSPF) for IPv6 feature provides support for IPv6 routing prefixes. OSPF for IPv6 runs alongside the current OSPF in networks with both IPv4 and IPv6. In OSPF for IPv6, some commands used to configure OSPF are in interface configuration mode rather than in router configuration mode.

Output Sampled NetFlow on IP Services Engine (ISE) Line Cards

Platform: Cisco 12000 series

The existing Sampled NetFlow feature on input interfaces allows you to collect NetFlow statistics for a subset of incoming IPv4 traffic, processing only one of "N" sequential packets, where "N" is a user-configurable parameter. Traffic sampling substantially reduces consumption of the router resources while providing valuable NetFlow statistics. Starting in Cisco IOS Release 12.0(24)S, Cisco 12000 series IP Services Engine (ISE) line cards also support Sampled NetFlow as an output feature, providing NetFlow statistics for outgoing traffic.

To enable Output Sampled NetFlow on a Cisco 12000 Series ISE interface, use the ip route-cache flow sampled [input | output] command in interface configuration mode, where:

input—Enables NetFlow sampling on incoming IPv4 traffic on the ISE interface.

output—enables NetFlow sampling for outgoing IPv4 traffic on the ISE interface.

For more information about how to configure and use Sampled NetFlow, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s24/12soutfl.htm

Periodic MIB Data Collection and Transfer Mechanism

Platform: Cisco 12000 series

The Periodic MIB Data Collection and Transfer Mechanism feature provides the ability to periodically transfer selected MIB data from Cisco IOS based devices to specified Network Management Stations (NMSs). Using the command line interface (CLI), data from multiple MIBs can be grouped into lists, and a polling interval (frequency of data collection) can be configured. All the MIB objects in a list are periodically polled using this specified interval. The collected data from the lists can then be transferred to a specified NMS at a user-specified transfer interval (frequency of data transfer) using TFTP, RCP, or FTP.

QA Error Recovery for the Cisco 7500

Platform: Cisco 7500 series

The QA Error Recovery for the Cisco 7500 feature helps the networking device to recover quickly from problems known as QAERRORs. These QAERRORs can be caused by hardware or software issues. When a QAERROR occurs, the device can hang while it tries to recover from the problem. On fully loaded devices, hang times following QAERRORs can be up to five minutes (300 seconds). With the QAERROR recovery enabled, the hang time can be a little as one second.

In Cisco IOS Release 12.0(24)S1, Release 12.0(24)S2, and Release 12.0(24)S3, you must enable QA Error Recovery for the Cisco 7500 feature by entering the following global configuration command:

hw-module main-cpu qaerror-recovery-enable


Note In releases following Cisco IOS Release 12.0(24)S3—that is, from Cisco IOS Release 12.0(25)S on—the QA Error Recovery for the Cisco 7500 feature is enabled by default.


You can tell that recovery from an error was successful because a message reporting a successful recovery will appear on the console screen. Additionally, the number of QAERROR recoveries is displayed in the output of the show controllers cbus command.

The following example shows the output of the console or show logs when QAERROR happened. Although the example indicates both the point at which the feature begins trying to recover from the QAERROR and the point at which the device recovers from the error, the networking device may display many additional messages that can help service technicians diagnose the actual cause of the problem.

%QA-3-DIAG:Trying to recover from QA ERROR.

%QA-3-DIAG:Removing buffer header 0xE360 from all queues

%QA-3-DIAG:Buffer 0xE360 is element 155 on queue 0x2E

%QA-3-DIAG:Queue 0x2E (48000170) has 154 elements

%QA-3-DIAG:Buffer 0xE360 is element 1 on queue 0x340

%QA-3-DIAG:Queue 0x340 (48001A00) has 0 elements

%QA-3-DIAG:At least one QA queue is broken

%QA-3-DIAG:Recovered from QA ERROR

The following example shows the relevant QA error recovery output of the show controllers cbus command:

Router# sh controllers cbus 
MEMD at E0000000, 8388608 bytes (unused 1565056, recarves 5, lost/qaerror recoveries 0/0)
.
.
.
Router# 

To disable QAERROR recovery on the device, use the no version of the command:

no hw-module main-cpu qaerror-recovery-enable

RSVP Refresh Reduction and Reliable Messaging

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, Cisco 10700 series, Cisco 12000 series

The RSVP Refresh Reduction and Reliable Messaging feature includes refresh reduction, which improves the scalability, latency, and reliability of Resource Reservation Protocol (RSVP) signaling to enhance network performance and message delivery.

Support for SONET Notifications in CISCO-SONET-MIB

Platform: Cisco 7500 series, Cisco 12000 series

The CISCO-SONET-MIB describes SONET/SDH interface objects and is an extension to the standard SONET MIB (RFC 2558).

The following Cisco IOS commands have been modified for use with this MIB:

snmp-server enable traps sonet to enable traps for the CISCO-SONET-MIB.

snmp-server host host-addr traps version {1 | 2c | 3 [auth | noauth | priv]} public sonet to specify the recipient of the SNMP notifications (traps) generated by the CISCO-SONET-MIB, where version {1 | 2c | 3 [auth | noauth | priv]} is the SNMP version used to send the traps.

For more detailed information about the snmp-server enable traps and snmp-server host command syntax and usage, see the following document:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/fun_r/frprt3/frd3001.htm

For details on managed objects within the CISCO-SONET-MIB, see the CISCO-SONET-MIB.my MIB file, available from the Cisco MIB FTP site at the following location:

http://tools.cisco.com/Support/SNMP/do/BrowseMIB.do?local=en&step=2

New Hardware and Software Features in Cisco IOS Release 12.0(23)S1 to Cisco IOS Release 12.0(23)S6

There are no new hardware or software features in Cisco IOS Release 12.0(23)S1 to Cisco IOS Release 12.0(23)S6.

New Hardware Features in Cisco IOS Release 12.0(23)S

This section describes new and changed features in Cisco IOS Release 12.0(23)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(23)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

1-Port 10-Gigabit Ethernet Line Card

Platform: Cisco 12000 series

The 1-Port 10-Gigabit Ethernet line card, which is designed for high-density and server-aggregation applications, provides the Cisco 12000 series routers with one optical 802.3ae 10-Gigabit Ethernet interface. This interface provides high-speed interconnections to other network devices, such as other Cisco 12000 series routers, or to other routers or Layer 2 or Layer 3 switches that support 10-Gigabit Ethernet interfaces.

Because the 1-port 10-Gigabit Ethernet line card requires a card cage slot that is 1.8 inches (4.5 centimeters) wide, you can use the 1-port 10-Gigabit Ethernet line card in only the Cisco 12416, Cisco 12410, Cisco 12406, and Cisco 12404 routers. The system must be configured for full switching fabric capacity, which is one clock and scheduler card (CSC) and three switch fabric cards (SFCs). In addition, the 1-port 10-Gigabit Ethernet line card requires a switch fabric that supports 10-Gigabit Ethernet, available only on the Cisco 12416, Cisco 12410, Cisco 12406, and Cisco 12404 routers.

The 1-Port 10-Gigabit Ethernet line card is available in two laser optical transceiver options:

1310 nanometer (nm) nominal long haul or long wavelength, used for 1000BASE-LR links.

1550 nm nominal long haul or long wavelength, used for 1000BASE-ER links.

For information about how to install and configure the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_enet/12902.htm

2-Port OC-48c/STM-16c POS/DPT Uplink Card and Versatile Optical Interface

Descriptions of the following two features appear in this section:

2-Port OC-48c/STM-16c POS/DPT Uplink Card

Versatile Optical Interface

2-Port OC-48c/STM-16c POS/DPT Uplink Card

Platform: Cisco 10720

The Cisco 10720 2-port OC-48c/STM-16c POS/DPT uplink card enables you to use the Cisco 10720 router to perform the following tasks:

Send IP packets directly over SONET/Synchronous Digital Hierarchy (SDH) frames.

Interwork with the OC-48c/STM-16c POS/SDH line cards in Cisco 12000 series routers, and configure each side of a Spatial Reuse Protocol (SRP) ring as a Packet-over-SONET (POS) interface.

Interwork with add/drop multiplexers (ADM) that provide SONET automatic protection switching (APS) for line and line card redundancy.

Also, you can convert a POS interface to SRP mode to use the 2-port OC-48c/STM-16c POS/DPT uplink card in an SRP ring to internetwork with OC-48c/STM-16c DPT/SRP line cards in Cisco 12000 series routers. For more information, see the "Versatile Optical Interface" section.


Note SRP is the underlying technology used in the Cisco Dynamic Packet Transport (DPT) family of products.


The default POS/SDH mode on the 2-port OC-48c/STM-16c POS/DPT uplink card supports PPP and High-Level Data Link Control (HDLC) encapsulation. see the Cisco Software Configuration for the Cisco 10720 Internet Router document for information about:

POS commands that are supported on POS interfaces on Cisco 12000 series routers and Cisco 10720 routers.

PPP and HDLC commands that are supported in POS/SDH mode.

APS commands that are supported on POS interfaces on Cisco 12000 series routers and Cisco 10720 routers.

The Cisco Software Configuration for the Cisco 10720 Internet Router is available at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st18/10720.htm

For information about how to use SRP mode in an SRP ring, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/srpapsgs.htm

Versatile Optical Interface

Platform: Cisco 10720

The Versatile Optical Interface feature allows you to convert interfaces on the 2-port OC-48/STM-16c POS/DPT uplink card in a Cisco 10720 router from the default Packet-over-SONET (POS)/Synchronous Digital Hierarchy (SDH) mode to Spatial Reuse Protocol (SRP) mode. There is no performance impact.

The Versatile Optical Interface feature allows you to take advantage of the high-speed OC48/STM16 DPT/SRP technology over fiber uplink and use the 2-port OC-48/STM-16c POS/DPT uplink card on either side of an SRP ring.


Note SRP is the underlying technology used in the Cisco Dynamic Packet Transport (DPT) family of products.


For information about how to use SRP mode in an SRP ring, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/srpapsgs.htm

The following example shows how to use the Versatile Optical Interface feature to convert a 2-port OC-48/STM-16c POS/DPT uplink card from POS to SRP mode:

router# configure terminal
Enter the configuration commands, one per line. End with CNTL/Z.
router(config)# 
hw-module slot 1 srp
`hw-module' needs reload to take effect.
router(config)# 
^Z
router# write
router# reload

4OC-48c/STM-16c DPT Line Card

Platform: Cisco 12000 series

The 4OC-48c/STM-16c DPT line card provides a Dynamic Packet Transport (DPT) solution, based on the Cisco-developed Spatial Reuse Protocol (SRP), for supported Cisco 12000 series routers. SRP is the underlying technology used in the Cisco DPT family of products.

The line card provides connections for two complete OC-48c/STM-16c SRP rings through the use of interchangeable pluggable optical modules (POMs). The POMs interface with the high-speed switch fabric of the router and provide four OC-48c/STM-16c duplex, single-mode LC connections.

For information about how to install and configure the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_srp/14307srp.htm

8-Port Fast Ethernet Half-Height Line Card

Platform: Cisco 10000 series

The 8-port Fast Ethernet Half-Height line card contains eight IEEE 802.3u-compliant 100BASE-TX ports to provide high-density uplinks to devices such as content servers, routers, and other Fast Ethernet (FE) devices. Each port autonegotiates between half and full duplex. Each port supports 100BASE-T, but does not support 10BASE-T.

You install this line card in a half-height slot splitter in a Cisco 10000 series chassis. You must first install the half-height slot splitter in the Cisco 10000 series chassis slot.

Because the 8-port Fast Ethernet Half-Height line card occupies only a half slot, each slot can support two line cards for a total of 16 ports. The Cisco 10000 supports multiple FE line cards.

For information about how to install the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/8hwdocs/cardinst/fehw.htm

For information about how to configure the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/fesw.htm

Gigabit Ethernet Half-Height Line Card

Platform: Cisco 10000 series

The Gigabit Ethernet Half-Height line card contains a single Gigabit Ethernet (GE) port that provides a trunk uplink to switches and core routers such as the Cisco 12000 series router.

The Gigabit Ethernet Half-Height line card provides the Cisco 10000 series router with an IEEE 802.3z compliant Ethernet interface that runs up to 1 Gbps in full-duplex mode. You install this line card in a half-height slot splitter in a Cisco 10000 series chassis. You must first install the half-height slot splitter in the Cisco 10000 series chassis slot.

You can run the Gigabit Ethernet Half-Height line card with a second line card in the other subslot to provide the Cisco 10000 series chassis with redundant links while only occupying a single slot. This redundancy allows you to service or replace one of the line cards without losing uplink connectivity. You may also use the other subslot for a different half-height line card.

The Gigabit Ethernet Half-Height line card uses a Small Form-factor Pluggable (SFP) Gigabit Interface Converter (GBIC) that supports a variety of GE interface types (SX and LX/LH), which you can change or upgrade at any time.


Note On a Cisco 10000 series router that is configured with a Performance Routing Engine 1 (PRE1), the maximum throughput of the Gigabit Ethernet Half-Height line cards is limited to 710 Mbps.



Note Only SFP GBICs purchased from Cisco work with the Gigabit Ethernet Half-Height line card software.


For information about how to install the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/8hwdocs/cardinst/hhgblc.htm

For information about how to configure the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/geos.htm

Modular Gigabit Ethernet Line Card

Platform: Cisco 12000 series

The Modular Gigabit Ethernet line card, which is designed for high-density and server-aggregation applications, provides the Cisco 12000 series routers with up to 10 optical 802.3 Gigabit Ethernet interfaces. These interfaces provide high-speed interconnects to other network devices, such as other Cisco 12000 series routers, or to other routers or layer 2 or layer 3 switches that support Gigabit Ethernet interfaces.

For information about how to install and configure the Modular Gigabit Ethernet line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_enet/13816.htm

For information about the complete set of software features that are supported on the Modular Gigabit Ethernet line card, see the Cisco 12000 Series Modular Gigabit Ethernet Data Sheet.

OC-192c/STM-64c DPT Line Card

Platform: Cisco 12000 series

The OC-192c/STM-64c DPT line card provides a Dynamic Packet Transport (DPT) solution, based on the Cisco-developed Spatial Reuse Protocol (SRP), for supported Cisco 12000 series routers. SRP is the underlying technology used with the Cisco DPT family of products. The card can be mated to a second OC-192c/STM-64c DPT line card to create one full OC-192c/STM-64c SRP ring.

When two line cards are not mated, each OC-192c/STM-64c DPT line card is the equivalent of a single-fiber SRP ring on side B. The single-fiber SRP ring has a wrap at each end to ensure that all data packets reach their destination.

For information about how to install and configure the line card, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_srp/13786srp.htm

New Software Features in Cisco IOS Release 12.0(23)S

This section describes new and changed features in Cisco IOS Release 12.0(23)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(23)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

3-Port Gigabit Ethernet Line Card Enhancements

Platform: Cisco 12000 series

The software features that are described in the following sections are now supported on the Cisco 12000 series 3-port Gigabit Ethernet line card:

MPLS VPN Bundled in EoMPLS Microcode on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

MPLS VPN Carrier Supporting Carrier on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

MPLS VPN Interautonomous System on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

MPLS VPN—VRF Selection Based on Source IP Address on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

Support for the CWDM GBIC Solution on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

Unicast Reverse Path Forwarding Bundled in Sampled NetFlow Microcode on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

MPLS VPN Bundled in EoMPLS Microcode on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

The Ethernet over MPLS (EoMPLS) microcode in the packet switching ASIC (PSA) on the 3-port Gigabit Ethernet line card now includes support for the Multiprotocol Label Switching Virtual Private Network (MPLS VPN) feature.

As a result, you can configure EoMPLS and MPLS VPN at the same time on the 3-port Gigabit Ethernet line card. When you enter the show controller psa feature command in privileged EXEC mode on the line card, MPLS VPN is included in the display:

router# exec slot 6 show controller psa feature

========= Line Card (Slot 6) =========

-- Current microcode bundle: -----------------

EoMPLS

-- This bundle supports: ---------------------

Basic IP Forwarding

Basic MPLS Switching

MPLS VPN

Ethernet over MPLS

Multicast

For more information about how to configure and use MPLS VPNs, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st21/fs_vpn.htm

MPLS VPN Carrier Supporting Carrier on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

For a feature description, see the "MPLS VPN Carrier Supporting Carrier for Additional Cisco 12000 Series Line Cards" section.

MPLS VPN Interautonomous System on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

For a feature description, see the "MPLS VPN Interautonomous System on Additional Cisco 12000 Series Line Cards" section.

MPLS VPN—VRF Selection Based on Source IP Address on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card


Note The MPLS VPN—VRF Selection Based on Source IP Address feature was introduced in Cisco IOS Release 12.0(22)S for the Cisco 10720 router and the Cisco 12000 series routers. This release is introducing support for the feature on the 3-port Gigabit Ethernet line card.


The VRF Selection feature allows packets that arrive on an interface to be switched into the appropriate Virtual Private Network (VPN) routing/forwarding (VRF) Selection table based upon the source IP address of the packets. Once the packets have been "selected" into the correct VRF Selection routing table, they are processed normally based upon the destination address and forwarded through the rest of the Multiprotocol Label Switching (MPLS) VPN.

The VRF Selection feature is a "one-way" feature; it works on packets that come from the end users to the provider edge (PE) router.

For more information about the MPLS VPN—VRF Selection Based on Source IP Address feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fsvrf.htm

Support for the CWDM GBIC Solution on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

The Cisco Coarse Wave Division Multiplexing (CWDM) Gigabit Interface Converter (GBIC) solution has two main components: the Cisco CWDM GBICs and the Cisco OADM plug-in modules or mux/demux plug-in modules, which are rack-mounted in a Cisco CWDM OADM chassis external to the Cisco 12000 series router that contains the 3-port Gigabit Ethernet line card.

The CWDM OADM plug-in modules and mux/demux plug-in modules are passive optical components that multiplex together multiple wavelengths from multiple SingleMode Fiber (SMF) fiber pairs into one SMF fiber pair. Up to two CWDM plug-in modules can be rack-mounted by using the single-rack-unit CWDM chassis.

The CWDM GBICs plug into the standard GBIC receptacles on the faceplate of the 3-port Gigabit Ethernet line card and are connected to the CWDM OADM or mux/demux plug-in modules in the external CWDM chassis using SMF jumper cables with SC-type connectors.

The CWDM GBICs come in the following eight wavelengths: 1470, 1490, 1510, 1530, 1550, 1570, 1590, and 1610 nanometers (nm).

A Cisco 12000 series router that is equipped with a 3-port Gigabit Ethernet line card and CWDM GBICs can be connected into a CWDM network through external CWDM plug-in modules in the following deployment scenarios:

Point-to-point—Two endpoints are directly connected via a fiber link. You can add or drop up to eight Gigabit Ethernet channels into a pair of single-mode fiber.

Hub-and-spoke (ring)—Multiple nodes (spokes) are connected with a hub location through a ring of single-mode fiber. Each hub/node connection can consist of one or more wavelengths, each carrying a full Gigabit Ethernet channel.

Mesh (ring)—Combines the hub-and-spoke and point-to-point (or even multiple point-to-point) connections in parallel on the same CWDM optic link. The maximum of eight GBIC wavelengths allows different combinations of these scenarios.

For more information about how to install and configure CWDM GBICs in a Cisco 12000 series 3-port Gigabit Ethernet line card, see the Cisco document at the following location:

http://www.cisco.com/en/US/docs/routers/12000/gsr_linecards/enet_lc/installation/guide/enet_lc.html

Unicast Reverse Path Forwarding Bundled in Sampled NetFlow Microcode on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card

The Sampled NetFlow microcode in the packet switching ASIC (PSA) on the 3-port Gigabit Ethernet line card now includes support for unicast Reverse Path Forwarding (uRPF). As a result, you can configure Sampled NetFlow and uRPF at the same time on the line card.

Both the classic "strict mode" uRPF and enhanced "loose check" versions of uRPF are supported on the 3-port Gigabit Ethernet line card and are documented in the following Cisco publications:

Configuring Unicast Reverse Path Forwarding, Release 12.1

Unicast Reverse Path Forwarding Enhancements, Release 12.1

Unicast Reverse Path Forwarding Commands, Release 12.1


Note The acl option is not supported for the ip verify unicast command in the 3-port Gigabit Ethernet line card.


For more information about how to configure and use Sampled NetFlow, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s11/12ssanf.htm

8-Port OC-3/STM-1 ATM Line Card Enhancements

Platform: Cisco 12000 series

The software features that are described in the following sections are now supported on the Cisco 12000 series 8-port OC-3/STM-1 ATM line card:

128 ACLs on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

ATM Cell Loss Priority Setting on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

ATM VC Bundle Management on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

MPLS VPN Carrier Supporting Carrier on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

MPLS VPN Interautonomous System on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

128 ACLs on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

You can now configure input access control lists (ACLs) on a per-subinterface basis on the 8-port OC-3/STM-1 ATM line card.

The use of input ACLs on the 8-port OC-3/STM-1 ATM line card is subject to the following restrictions:

Only input ACLs are supported.

A maximum of 16 distinct input ACLs per line card and 128 ACL entries per ACL are supported in the packet switching ASIC (PSA) microcode because of memory limitations. Additional ACLs are processed by the line card CPU rather than the PSA microcode. This situation remains true even when one of the ACLs processing in the PSA microcode is removed and the total number of distinct ACLs drops to 16.

An input ACL configuration on a subinterface is supported only on the 8-port OC-3/STM-1 ATM line card.

Only Logical Link Control/Subnetwork Access Protocol (LLC/SNAP) encapsulation is supported in the PSA microcode. VC Mux or Network Layer Protocol Identifiers (NLPID) encapsulation is processed by the line card CPU.

Basic IP and Multiprotocol Label Switching (MPLS) forwarding are supported together with input ACLs in the same 8-port OC-3/STM-1 ATM line card microcode bundle. Any other features are either not supported, are processed by the line card CPU, or are processed in another PSA microcode bundle.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/eacl128.htm

ATM Cell Loss Priority Setting on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card


Note The ATM Cell Loss Priority Setting feature was introduced in Cisco IOS Release 12.0(7)S for the Cisco 7500 series routers under the feature title ATM CLP Setting. This release is porting the feature into the Cisco 12000 series 8-port OC-3/STM-1 ATM line card.


Before development of the ATM Cell Loss Priority Setting feature, the Cell Loss Priority (CLP) bit in the ATM header of a cell provided a method of controlling the discarding of cells in a congested ATM environment. A CLP bit contains two settings: 0 and 1. Cells with a CLP bit setting of 1 are discarded before cells with a CLP bit setting of 0. Before the introduction of the ATM Cell Loss Priority Setting feature, the CLP bit was automatically set to 0 when Cisco routers converted packets into ATM cells for ATM networks.

The ATM Cell Loss Priority Setting feature enables users to control the ATM CLP bit setting on the 8-port OC-3/STM-1 ATM line card for the Cisco 12000 series routers. The CLP bit is set on each packet individually, and the default CLP bit setting is 0. The application of the ATM Cell Loss Priority Setting feature changes the CLP bit setting to 1. Therefore, users have the option to leave each packet with the default CLP bit setting of 0 or to establish a new CLP bit setting of 1.

The ATM Cell Loss Priority Setting feature offers improved bandwidth management by enabling users to extend their IP quality of service (QoS) policies into an ATM network by setting the ATM CLP bit in ATM cells in an outgoing ATM adaptation layer 5 (AAL5) packet based on the IP precedence or Multiprotocol Label Switching (MPLS) experimental bits of the incoming packets. A downstream device, such as an ATM switch, can then make congestion-alleviating decisions based on the CLP bit of the ATM cells. As congestion occurs in the ATM network, cells with the CLP bit set are more likely to be dropped, resulting in improved network performance for high priority traffic and applications.

For more information about the ATM Cell Loss Priority Setting feature, see the Cisco document that is specific to the Cisco 12000 series routers at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atmclp23.htm

ATM VC Bundle Management on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

Before the introduction of the ATM VC Bundle Management feature, the 8-port OC-3/STM-1 ATM line card was capable of using Weighted Random Early Detection (WRED) and Modified Deficit Round Robin (MDRR) to classify and set priorities for packets, but all packets shared a single quality of service (QoS) virtual circuit (VC). The ATM VC Bundle Management feature addresses this limitation by enabling you to define an ATM VC bundle and add VCs to it. Each VC of a bundle has its own ATM traffic class and ATM traffic parameters. You can apply attributes and characteristics to discrete VC bundle members, or you can apply them collectively at the bundle level.

Using VC bundles, you can create differentiated service by flexibly distributing IP precedence levels over the different VC bundle members. You can map a single precedence level or a range of levels to each discrete VC in the bundle, thereby enabling individual VCs in the bundle to carry packets marked with different precedence levels. You can use WRED to further differentiate service across traffic that has different IP precedences, but that uses the same VC in a bundle.

For more information about the ATM VC Bundle Management feature, see the Cisco document that is specific to the Cisco 12000 series routers at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/vc_bun23.htm

MPLS VPN Carrier Supporting Carrier on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

For a feature description, see the "MPLS VPN Carrier Supporting Carrier for Additional Cisco 12000 Series Line Cards" section.

MPLS VPN Interautonomous System on the Cisco 12000 Series 8-Port OC-3/STM-1 ATM Line Card

For a feature description, see the "MPLS VPN Interautonomous System on Additional Cisco 12000 Series Line Cards" section.

Any Transport over MPLS

The following sections describe Any Transport over Multiprotocol Label Switching (AToM) features:

Any Transport over MPLS: ATM AAL5 over MPLS

Any Transport over MPLS: ATM Cell Relay over MPLS: VC Mode

Any Transport over MPLS: Ethernet over MPLS

Any Transport over MPLS: Frame Relay over MPLS

Any Transport over MPLS: HDLC over MPLS

Any Transport over MPLS: PPP over MPLS

ATM OAM Emulation

Any Transport over MPLS: ATM AAL5 over MPLS

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series.


Note The Any Transport over MPLS: ATM AAL5 over MPLS feature was introduced in Cisco IOS Release 12.0(22)S for the Cisco 12000 series routers. This release is updating the feature and is porting it into the Cisco 7200 and Cisco 7500 series routers and the Cisco 12000 series IP Services Engine (ISE) line cards.


The Any Transport over MPLS: ATM AAL5 over MPLS feature provides an ATM permanent virtual circuit (PVC) for transporting ATM adaptation layer 5 (AAL5) protocol data units (PDUs) across an IP/Multiprotocol Label Switching (MPLS) backbone with rate-limit policing and configurable PVC priority values. A dynamic MPLS tunnel is configured to enable label imposition and disposition of encapsulated ATM PDUs transported between two edge routers having a Label Distribution Protocol (LDP) neighbor relationship.

Each routed PVC label stack has two levels of labels prepended to each ATM PDU: an Interior Gateway Protocol (IGP) stack consisting of zero or more labels and a PVC-based label. Label imposition and disposition are performed by routers at the edge of the MPLS backbone. The imposition router takes the ATM PDU and encapsulates it in an MPLS PDU for transport to the correct disposition router. The disposition router takes the MPLS PDU, de-encapsulates the ATM PDU, and delivers it to the correct ATM interface and virtual path identifier/virtual circuit identifier (VPI/VCI).

Cisco IOS Release 12.0(23)S introduces support the Any Transport over MPLS: ATM AAL5 over MPLS feature for the Cisco 7200 series and Cisco 7500 series routers and for the Cisco 12000 series IP Services Engine line cards.

ATM AAL5 over MPLS label disposition is supported for the for Cisco 12000 series IP Services Engine line cards, including:

4-port OC-3c/STM-1c POS/SDH ISE line card

8-port OC-3c/STM-1c POS/SDH ISE line card

16-port OC-3c/STM-1c POS/SDH ISE line card

4-port OC-12c/STM-4c POS/SDH ISE line card

1-port OC-48c/STM-16c POS/SDH ISE line card

4-port Channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

1-port Channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c) POS/SDH, OC-12c/STM-4c ISE line card

For more information about the Any Transport over MPLS: ATM AAL5 over MPLS feature, see the Any Transport over MPLS document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

Any Transport over MPLS: ATM Cell Relay over MPLS: VC Mode

Platforms: Cisco 7200 series, Cisco 7500 series


Note Before the Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VP Mode feature was introduced, the Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VC Mode feature was known as the Any Transport over MPLS: ATM Cell Relay over MPLS feature, that is, without a distinction between virtual circuit (VC) mode and virtual path (VP) mode.


With ATM cell relay functionality, ATM cells can be transported across Multiprotocol Label Switching (MPLS) networks transparently. This setup allows transportation of ATM signaling and Operations, Administration, and Maintenance (OAM) cells across a packet network, making a packet network invisible to the ATM network. The Any Transport over MPLS: ATM Cell Relay over MPLS feature enables service providers to use the same tools for provisioning and to aggregate the existing frame and ATM installations to a high-speed packet core that is based on IP/MPLS.

For more information about the Any Transport over MPLS: ATM Cell Relay over MPLS feature, see the Any Transport over MPLS document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

Any Transport over MPLS: Ethernet over MPLS

Platforms: Cisco 7200 series, Cisco 7500 series


Note The Any Transport over MPLS: Ethernet over MPLS feature was introduced in Cisco IOS Release 12.0(22)S for the Cisco 10720 router and the Cisco 12000 series routers. This release is updating the feature and is porting it into the Cisco 7200 and Cisco 7500 series routers.


The Any Transport over MPLS: Ethernet over MPLS feature enables you to connect two VLAN networks that are in different locations, without using expensive bridges, routers, or switches at the VLAN locations. You can enable the Multiprotocol Label Switching (MPLS) backbone network to accept Layer 2 VLAN traffic by configuring the label edge routers (LERs) at both ends of the MPLS backbone.

For more information about the Any Transport over MPLS: Ethernet over MPLS feature, see the Any Transport over MPLS document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

Any Transport over MPLS: Frame Relay over MPLS

Platforms: Cisco 7200 series, Cisco 7500 series

With the Any Transport over MPLS: Frame Relay over MPLS feature, Frame Relay traffic can be encapsulated in Multiprotocol Label Switching (MPLS) packets and forwarded over an MPLS backbone to other Frame Relay destinations. Service providers can quickly add new sites with less effort than with typical Frame Relay provisioning.

For more information about the Any Transport over MPLS: Frame Relay over MPLS feature, see the Any Transport over MPLS document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

Any Transport over MPLS: HDLC over MPLS

Platforms: Cisco 7200 series, Cisco 7500 series

The Any Transport over MPLS: HDLC over MPLS feature enables a customer router to emulate a High-Level Data Link Control (HDLC) connection to another customer router across the packet backbone. Like PPP, this technology allows transportation of Cisco HDLC frames across the packet networks. HDLC over Multiprotocol Label Switching (MPLS) also works in transparent mode.

For more information about the Any Transport over MPLS: HDLC over MPLS feature, see the Any Transport over MPLS document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

Any Transport over MPLS: PPP over MPLS

Platforms: Cisco 7200 series, Cisco 7500 series

The Any Transport over MPLS: PPP over MPLS feature enables service providers to encapsulate PPP frames across a Multiprotocol Label Switching (MPLS) core in order to emulate a PPP link across any layer transport. Using PPP over MPLS on Packet-over-SONET (POS) links enables service providers to create a "multiplexed" subinterface that can then be used to individually peer with other providers.

PPP over MPLS further enables service providers to provide a transparent PPP pass-through where the customer-edge routers can exchange the traffic via an end-to-end PPP session. Service providers can offer a virtual leased-line solution, and use the PPP subinterface capability to peer with multiple providers via a single POS connection.

For more information about the Any Transport over MPLS: PPP over MPLS feature, see the Any Transport over MPLS document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

ATM OAM Emulation

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

If a provider edge (PE) router does not support the transport of Operation, Administration, and Maintenance (OAM) cells across a label switched path (LSP), you can use OAM cell emulation to transport the OAM cells. You configure OAM cell emulation on both PE routers to form two unidirectional LSPs, which emulate a virtual circuit (VC). You use the oam-ac emulation-enable command on both PE routers to enable OAM cell emulation.

OAM cell emulation sends loopback cells at regular intervals. The endpoint can be either of the following:

End-to-end loopback, which sends OAM cells to the device at the end of the LSP.

Segment loopback, which sends OAM cells to a device along the LSP.

The OAM cells include the following:

Alarm indication signal (AIS)

Remote defect indication (RDI)

These cells identify and report defects along a VC. When a physical link or interface failure occurs, intermediate nodes insert OAM AIS cells into all the downstream devices affected by the failure. When a router receives an AIS cell, it marks the logical interface down and sends an RDI cell to inform the remote end about the failure.

For information on configuring OAM cell emulation, see the "Configure OAM Cell Emulation for AAL5 over MPLS" section in the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/fsatomb.htm

ATM OAM Traffic Reduction

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

The ATM OAM Traffic Reduction feature improves Operation, Administration, and Maintenance (OAM) scalability by reducing OAM cell traffic by 50 percent when OAM is enabled on both ends. The ATM OAM Traffic Reduction feature detects OAM cells that are enabled on both ends of a virtual circuit (VC), and then suppresses the transmission of OAM cell requests at one end.

For more information about the ATM OAM Traffic Reduction feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atmoam.htm

Cisco Nonstop Forwarding with Stateful Switchover on the Cisco 12000 Series Performance Route Processor and the Cisco 12000 Series 1-Port and 3-Port Gigabit Ethernet Line Cards

Platform: Cisco 12000

The Cisco Nonstop Forwarding with Stateful Switchover feature was introduced in Cisco IOS Release 12.0(22)S. This release is porting the feature into the Cisco 12000 series Performance Route Processor and the Cisco 12000 series 1-port Gigabit Ethernet (GE) and 3-port GE line cards.

For information, see the "Cisco Nonstop Forwarding with Stateful Switchover" section and see the following documents:

For more information about the Cisco Nonstop Forwarding (NSF) feature, see the Cisco Nonstop Forwarding document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/nsf_sso/nsf23s.htm

For more information about the Stateful Switchover (SSO) feature, see the Stateful Switchover document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/nsf_sso/sso23s.htm

Dynamic Layer-3 VPNs (L3VPNs) (RFC-2547 based) with Multipoint GRE (mGRE) Tunnel Support

Platforms: Cisco 7200 series, Cisco 7500 series

The Dynamic Layer-3 VPNs (L3VPNs) (RFC-2547 based) with Multipoint GRE (mGRE) Tunnel Support feature provides an IP-based alternative to the Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) that are used to transport IP Virtual Private Network (VPN) traffic across the core network between provider edge (PE) routers. This feature can be used instead of (or together with) MPLS to transport VPN traffic across a service provider network.

Fast EtherChannel and Gigabit EtherChannel on the Cisco 10720 Router

Platform: Cisco 10720


Note The Fast EtherChannel feature was introduced in Cisco IOS Release 12.0(8)S for the Cisco 7200 series routers. This release is porting the feature into the Cisco 10720 router and adding support for Gigabit EtherChannel.


The EtherChannel feature allows multiple Fast Ethernet and Gigabit Ethernet point-to-point links to be bundled into one logical link to provide bidirectional bandwidth of up to 800 Mbps. On the Cisco 10720 router, the EtherChannel feature is supported on both Fast Ethernet (FE) and Gigabit Ethernet (GE) ports:

A maximum of 8 FE interfaces can be bundled together in a Fast EtherChannel on the 24-port Ethernet access card.

A maximum of 4 GE interfaces can be bundled together in a Gigabit EtherChannel on the 4-port Gigabit Ethernet 8-Port 10/100 Ethernet TX access card.

EtherChannel is implemented on the Cisco 10720 router as follows:

You configure quality of service (QoS) features on an FE or GE interface with the modular quality of service command-line interface (MQC). Using MQC, you create service policies for traffic classes and attach the policies to a Fast EtherChannel interface.

When you use committed access rate (CAR) on an EtherChannel interface, the traffic rate on the entire channel is limited to the configured CAR value.

On a physical EtherChannel interface, traffic is shaped according to the percentage of bandwidth allocated to the port using the bandwidth and priority commands.

Fast and Gigabit EtherChannels do not support Universal Tunnel Interface (UTI), Layer 2 Tunneling Protocol version 3 (L2TPv3), or Ethernet over Multiprotocol Label Switching (EoMPLS) tunneling.

All ports in a Fast or Gigabit EtherChannel must be the same speed (10 Mbps or 100 Mbps) and full duplex. Bundled EtherChannel ports can be contiguous.

802.3ad link aggregation using Link Aggregate Control Protocol (LACP) is not supported.

When an individual EtherChannel link fails, traffic is redistributed to the remaining active links.

An output FE or GE port is selected using a hashing algorithm that is based on the source and destination addresses. One IP flow is, therefore, always sent out on the same port.

802.1q VLANs are supported on Fast EtherChannel and Gigabit EtherChannel interfaces.

For more information about how to configure and use the EtherChannel feature, see the original Cisco document written for Cisco IOS Release 11.1 CC, at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios111/ca111/fechan.htm

Generic Routing Encapsulation (GRE) Tunnel Keepalive

Platforms: Cisco 7200 series, Cisco 7500 series

The Generic Routing Encapsulation (GRE) Tunnel Keepalive feature enables you to configure keepalive packets to be sent over IP-encapsulated GRE tunnels. You can specify the number of times a device will attempt to send keepalive packets before the interface becomes inactive.

Globalized Channelizations

Platform: Cisco 10000 series

With the Globalized Channelization feature, the Cisco 10000 series 1-port channelized OC-12 line card and 4-port channelized STM-1 line card support the following globalized channelization modes:

SONET channelization:

STS-1 over DS3/T3

STS-1 over DS3/T3 over DS1

STS-1 over DS3/T3 over DS3 subrate

STS-1 over VT1.5 over DS1

STS-1 over VT2 over E1

Synchronous Digital Hierarchy (SDH) channelization:

STM-1 over AU-3 over DS3/T3

STM-1 over AU-3 over DS3/T3 over DS3 subrate

STM-1 over AU-3 over TUG-2 over C-11 over DS1/T1

STM-1 over AU-3 over TUG-2 over C-12 over E1

STM-1 over AU-4 over TUG-3 over TUG-2 over C-11 over DS1/T1

STM-1 over AU-4 over TUG-3 over TUG-2 over C-12 over E1

GRE Tunnel IP Source and Destination VRF Membership

Platforms: Cisco 7200 series, Cisco 7500 series

The GRE Tunnel IP Source and Destination VRF Membership feature makes it possible for you to specify the Virtual Private Network (VPN) routing/forwarding (VRF) membership of the Generic Routing Encapsulation (GRE) tunnel IP source and destination.

IP Options Selective Drop

Platform: Cisco 12000 series

Before the introduction of the IP Options Selective Drop feature, Cisco IOS routers may have been vulnerable to large-scale denial of service (DOS) attacks from IP Options packets because these packets cannot be handled by hardware engines, so they must be sent to software processing paths. The IP Options Selective Drop feature allows users to filter these packets, thereby mitigating the effects of the packets on a router and downstream routers.

The IP Options Selective Drop feature allows the users to drop (that is, the router drops all IP Options packets that it receives and prevents options from going deeper into the network) or ignore (that is, the router treats the packets as though they have no IP Options) all IP Options packets that are destined for the router. For many users, dropping the packets is the best solution. However, in environments where some IP Options may be legitimate, reducing the load that the packets present on the routers is sufficient. Thus, users may see skip options processing on the router and forward the packet as though it were pure IP.

For more information about the IP Options Selective Drop feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/sel_drop.htm

IP Services Engine Line Card Enhancements (2)

Platform: Cisco 12000 series

In addition to the enhancements that were introduced in Cisco IOS Release 12.0(22)S, new software features have been added to Cisco 12000 series IP Services Engine (ISE) line cards, including:

4-port OC-3c/STM-1c POS/SDH ISE line card

8-port OC-3c/STM-1c POS/SDH ISE line card

16-port OC-3c/STM-1c POS/SDH ISE line card

4-port OC-12c/STM-4c POS/SDH ISE line card

1-port OC-48c/STM-16c POS/SDH ISE line card

4-port Channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

1-port Channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c) POS/SDH, OC-12c/STM-4c ISE line card

The software features that are now supported on Cisco 12000 series ISE line cards are described in the following sections:

ATM AAL5 over MPLS on Cisco 12000 Series ISE Line Cards

Access Control Entry (ACE) Counters on Cisco 12000 Series ISE Line Cards

BGP Policy Accounting on Cisco 12000 Series ISE Line Cards

IP and MPLS Subinterface Counters on Cisco 12000 Series ISE Line Cards

IPv6 Hardware Forwarding on Cisco 12000 Series ISE Line Cards

Modular Quality of Service Command-Line Interface (MQC) MIB Support on Cisco 12000 Series ISE Line Cards

Modular Quality of Service Command-Line Interface (MQC) to Configure QoS on Frame Relay Subinterfaces on Cisco 12000 Series ISE Line Cards

MPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for (TE) Tunnels on Cisco 12000 Series ISE Line Cards

MPLS Traffic Engineering (TE)—Diff-Serv-Aware on Cisco 12000 Series ISE Line Cards

Policy-Based Routing on Cisco 12000 Series ISE Line Cards

Route Processor Redundancy Plus on Cisco 12000 Series ISEIP Services Engine Line Cards

ATM AAL5 over MPLS on Cisco 12000 Series ISE Line Cards

For a feature description, see the "Any Transport over MPLS: ATM AAL5 over MPLS" section.

Access Control Entry (ACE) Counters on Cisco 12000 Series ISE Line Cards

Cisco 12000 series ISE line cards support the logging and display of counters for the individual entries on an access control list (ACL). You can display an aggregate counter (number of matches) for all entries on an access list using the show access-lists access-list-number command in privileged EXEC mode as shown here:

router# show access-lists 108
Extended IP access list 108
     permit tcp any host 1.1.1.1 gt 35
     deny tcp any 1.1.1.0 0.0.0.255
     permit ip any any
Individual entry match count isn't available
Aggregated matches: permit/deny 142325577/0
 
   

After you connect to the Cisco IOS image running on a Cisco 12000 series ISE line card, you can also display counters for individual access control entries (ACEs) using the show access-lists hardware interface interface-type slot:port [in | out] command:

Router# attach 2
Entering Console for 4 Port Packet Over SONET OC-3c/STM-1 in Slot: 2
Type exit to end this session
Press RETURN to get started!
LC-Slot2# show access-lists hardware interface pos 0:1 in
         permit  tcp any host 1.1.1.1 fragment (101 matches)
         permit  tcp any host 1.1.1.1 gt 35 (78 matches)
         deny  tcp any 1.1.1.0 0.0.0.255 (17 matches)
         permit  ip any any  (316214931 matches) 

Where:
slot:port specifies an ISE interface.
interface-type specifies the type of interface; for example, pos for Packet-over-SONET.
The in keyword displays the number of incoming (receive) packets on the interface that match each access list entry.
The out keyword displays the number of outgoing (transmit) packets on the interface that match each access list entry.


Note The show access-lists hardware interface command may display a different number of ACL entries than the show access-list command.


In addition, you can display both aggregate ACL counters and individual ACE counters for an ISE interface as follows, starting in global configuration mode:

1. Enter the hw-module slot number tcam compile acl no-merge command to turn off merge:

Router(config)# hw-module slot 2 tcam compile acl no-merge

2. In interface configuration mode, enter the no ip access-list access-list-number [in | out] command to unconfigure the access control list from the interface:

Router(config)# interface pos 2/0:1

Router(config-if)# no ip access-list 108 in

3. In interface configuration mode, enter the ip access-list access-list-number [in | out] command to reconfigure the access control list to the interface:

Router(config-if)# ip access-list 108 in

4. In privileged EXEC mode, enter the show access-list access-list-number command to display both aggregate ACL counters and individual ACE counters:

Router# show access-list 108

Extended IP access list 108

deny ip any host 1.1.1.1 (182 matches)

permit ip any any (18935489 matches)

Individual entry match count isn't available

Aggregated matches: permit/deny 18935671/0

For information about how to configure an access list, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113t/113t_3/stdlog.htm

BGP Policy Accounting on Cisco 12000 Series ISE Line Cards


Note For the Cisco 12000 series routers, the BGP Policy Accounting feature was introduced in Cisco IOS Release 12.0(10)S. This release is porting the feature into Cisco 12000 series IP Services Engine (ISE) line cards.


Border Gateway Protocol (BGP) policy accounting measures and classifies IP traffic that is sent to, or received from, different peers. Policy accounting is enabled on an input interface, and counters based on parameters such as community list, autonomous system number, or autonomous system path are assigned to identify the IP traffic.

Using BGP policy accounting, you can account for traffic according to the route it traverses. Service providers can identify and account for all traffic by customer and bill accordingly.

BGP policy accounting is implemented on Cisco 12000 series ISE line cards as follows:

BGP policy accounting is performed in ternary content addressable memory (TCAM).

BGP policy accounting is supported both on ISE physical interfaces and subinterfaces.

BGP policy accounting is supported only on the input side of an ISE interface or subinterface; it is not supported on the output side.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s9/s_bgppa.htm

IP and MPLS Subinterface Counters on Cisco 12000 Series ISE Line Cards

Counters for IP and Multiprotocol Label Switching (MPLS) traffic are supported on the subinterfaces of Cisco 12000 series IP Services Engine (ISE) line cards, and are implemented on ISE subinterfaces as follows:

The accounting for IP and MPLS traffic on ISE subinterfaces is performed in ternary content addressable memory (TCAM).

IP and MPLS counters are supported on both input and output sides of ISE subinterfaces.

A TCAM lookup is not performed for nonroutable packets; that is, packets with destination addresses for which a route does not exist. These packets are, therefore, not counted in IP/MPLS subinterface counters.

To display the counters for IP and MPLS traffic on ISE subinterfaces, use the show interface interface-type slot/port:subinterface command in privileged EXEC mode; for example:

Router# show interface pos 2/0:1
POS2/0.1 is up, line protocol is up

Hardware is Packet over SONET

Internet address is 33.33.33.2/24

MTU 4470 bytes, BW 622000 Kbit, DLY 100 usec, rely 255/255, load 1/255

Encapsulation FRAME-RELAY IETF

POS2/0.1

Protocol Pkts In Chars In Pkts Out Chars Out

IP      0          0         0          0

MPLS      0          0         0          0

IPv6 Hardware Forwarding on Cisco 12000 Series ISE Line Cards


Note IPv6 was introduced in Cisco IOS Release 12.0(22)S. This release is porting the feature into additional Cisco 12000 series line cards. See also the "IPv6 on Additional Cisco 12000 Series Line Cards" section.


IP version 6 (IPv6) is now supported on Cisco 12000 series IP Services Engine (ISE) line cards. IPv6, formerly called IPng (next generation), is the latest version of IP and offers many benefits, such as a larger address space, over the previous version of IP (version 4).

IPv6 is implemented on Cisco 12000 series ISE line cards as follows:

IPv6 supports access control lists (ACLs) on input and output interfaces only in Cisco IOS software. If you configure input or output ACLs on an ISE interface, IPv6 packets are sent to the line card CPU for processing.

If the number of IPv6 routes exceeds the hardware capacity of the ternary content addressable memory (TCAM), the following error message is displayed to describe how to increase the TCAM hardware capacity for IPv6 routes:

EE48-3-IPV6_TCAM_CAPACITY_EXCEEDED: IPv6 pkts will be software switched.

To support more IPv6 routes in hardware:

Get current TCAM usage with: show controllers ISE <slot> tcam

In config mode, reallocate TCAM regions e.g. reallocate Netflow TCAM to IPv6

hw-module slot <num> tcam carve rx_ipv6 <prefix> <v6-percent>

hw-module slot <num> tcam carve rx_top_nf <nf-percent>

Verify with show command that sum of all TCAM regions = 100%

Reload the linecard for the new TCAM carve config to take effect

WARNING: Recarve may affect other input features(ACL,CAR,MQC,Netflow)

TCAM is used for forwarding lookups. To increase TCAM capacity for handling IPv6 routes, you must use the hw-module slot number tcam carve rx_ipv6 prefix v6-percentage command in privileged EXEC mode, where: prefix specifies the prefix length of an IPv6 region in TCAM and v6-percentage specifies the percentage of TCAM hardware used by the specified IPv6 prefix.

For example, you can change the IPv6 region for prefix length 10 from 0 percent (default) to 15 percent of the TCAM hardware by reallocating the NetFlow region from 35 percent (default) to 20 percent as follows:

Router# hw-module slot 3 tcam carve rx_ipv6 10 15

Router# hw-module slot 3 tcam carve rx_nf 20

For information about how to configure and use IPv6, see the Cisco documents at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm

Modular Quality of Service Command-Line Interface (MQC) MIB Support on Cisco 12000 Series ISE Line Cards

The class-based quality of service (QoS) Management Information Base (class-based QoS MIB) that supports the modular quality of service command-line interface (MQC) feature is now supported on Cisco 12000 series IP Services Engine (ISE) line cards. This MIB provides read access to QoS configurations, and QoS statistics information based on the MQC, including information regarding class map and policy map parameters.

To locate the class-based QoS MIB, use the Cisco Network Management Toolkit for MIBs tool at the following location:

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

Modular Quality of Service Command-Line Interface (MQC) to Configure QoS on Frame Relay Subinterfaces on Cisco 12000 Series ISE Line Cards

You can use the modular quality of service command-line interface (MQC) to configure quality of service (QoS) for Frame Relay subinterfaces on Cisco 12000 series IP Services Engine (ISE) line cards. The following QoS policy actions are supported on incoming (receive) subinterfaces:

Police

Set

Shape

Random-detect (if Shape is configured)

Queue-limit (if Shape is configured)

On outgoing (transmit) subinterfaces, the following policy actions are supported:

Bandwidth (specified as an absolute rate, not as a percentage of the line rate)

Shape

Random-detect

Queue-limit

Priority

Police

Set

Because of hardware reasons, the following features are not supported on Cisco 12000 series ISE line cards:

Frame Relay traffic shaping

Frame Relay DE bit marking

Link fragmentation and interleaving (LFI)

Hierarchical policy maps

In addition, the following limitations apply:

MQC cannot be used for Frame Relay point-to-multipoint subinterfaces.

A Frame Relay data-link connection identifier (DLCI) must be defined under a subinterface configuration for QoS to be defined on it. MQC will not apply if the DLCI is defined directly under the interface configuration.

To configure the MQC on a Frame-Relay subinterface, you must:

1. Define a traffic class using the class-map command.

2. Define a policy map using the policy-map command for the traffic class defined in Step 1. (The service policy map should include a default class with configured bandwidth so that each DLCI has its own default class queue available.)

3. Define a map class using the map-class frame-relay command and then create a service input/output policy.

4. Attach the map class to a Frame Relay subinterface using the frame-relay class command.

For information about how to use the class-map and policy-map commands to create a service policy for a traffic class, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/mcli.htm

For information about how to use the map-class frame-relay and frame-relay class commands, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/qos_c/qcprt4/qcdfrts.htm

MPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for (TE) Tunnels on Cisco 12000 Series ISE Line Cards


Note For the Cisco 12000 series routers, the MPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for (TE) Tunnels feature was introduced in Cisco IOS Release 12.0(22)S. This release is porting the feature into Cisco 12000 series IP Services Engine (ISE) line cards.


Cisco 12000 series ISE line cards support Multiprotocol Label Switching (MPLS) Traffic Engineering (MPLS TE) features for constraint-based routing of "guaranteed" traffic and automatic bandwidth adjustment in TE tunnels.

MPLS traffic engineering automatically establishes and maintain tunnels across the backbone. The path used by a given tunnel at any point in time is determined based on the tunnel resource requirements and network resources, such as bandwidth.

The MPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for (TE) Tunnels automatically adjusts the bandwidth allocation for traffic engineering tunnels based on their measured traffic load. The autobandwidth feature samples the average output rate for each tunnel configured for automatic bandwidth adjustment, and periodically (for example, once per day) adjusts the allocated bandwidth of the tunnel to be the largest sample for the tunnel since the last adjustment. The frequency with which tunnel bandwidth is adjusted and the allowable range of adjustments is configurable on a per-tunnel basis. In addition, the sampling interval and the interval over which to average tunnel traffic to obtain the average output rate is user-configurable on a per-tunnel basis.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/fsteaut.htm

MPLS Traffic Engineering (TE)—Diff-Serv-Aware on Cisco 12000 Series ISE Line Cards


Note For the Cisco 12000 series routers, the MPLS Traffic Engineering (TE)—Diff-Serv-Aware feature was introduced in Cisco IOS Release 12.0(22)S (see "Diff-Serv-Aware Traffic Engineering (DS-TE) for the Cisco 12000 Series Internet Routers" section). This release is porting the feature into Cisco 12000 series IP Services Engine (ISE) line cards.


Cisco 12000 series ISE line cards support Multiprotocol Label Switching TE (MPLS TE) features for constraint-based routing of "guaranteed" traffic and automatic bandwidth adjustment in TE tunnels.

MPLS traffic engineering automatically establishes and maintain tunnels across the backbone. The path used by a given tunnel at any point in time is determined based on the tunnel resource requirements and network resources, such as bandwidth.

The MPLS TE Diff-Serv-Aware feature allows you to manage the bandwidth reservable on each link for constraint-based routing (CBR) purposes through two bandwidth pools: a global pool and a subpool. The subpool can be limited to a smaller portion of the link bandwidth. You can then configure tunnels using the sub-pool bandwidth in conjunction with MPLS quality of service (QoS) mechanisms to deliver guaranteed bandwidth services end-to-end across the network.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/12s_dste.htm

Policy-Based Routing on Cisco 12000 Series ISE Line Cards


Note For the Cisco 12000 series routers, the Policy-Based Routing feature was introduced in Cisco IOS Release 12.0(22)S on the Engine 4 line cards. This release adds support for the Cisco 12000 series IP Services Engine (ISE) line cards.


Policy-based routing (PBR) provides a flexible means of routing packets by allowing you to configure a defined policy for traffic flows, lessening reliance on routes derived from routing protocols. You can set up PBR as a way to route packets based on configured policies. For example, you can implement routing policies to allow or deny paths based on the identity of a particular end system or an application protocol.


Note The match-length command used in route-map configuration mode to configure an allow or deny path based on packet size is not supported on Cisco 12000 series ISE line cards.


Also, you can configure a unique policy for each input interface, or one policy for multiple interfaces. A policy contains one or more route maps. Each route map has one or more statements that specify the required matching criteria and actions. For example, a matching statement can be an access control list (ACL). If the matching criteria are met, the action statements are executed. An action statement can contain a routing action or a quality of service (QoS) action. The routing action determines what output interfaces the packet should take or what the next hop is. The QoS action may be to set the type of service (ToS) or IP precedence parameter to a specific value.

PBR is implemented on the Cisco 12000 series ISE line cards as follows:

PBR cannot be configured to execute an action on multicast packets. PBR takes actions only on IP traffic.

PBR can be applied to all kinds of interfaces or subinterfaces.

The set interfaces command works only on point-to-point interface types.

PBR does not support a traffic engineering (TE) tunnel as the next hop (outbound interface).

For information about how to configure policy-based routing, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt1/qcfpbr.htm

Route Processor Redundancy Plus on Cisco 12000 Series ISEIP Services Engine Line Cards


Note For the Cisco 12000 series routers, the Route Processor Redundancy Plus feature was introduced in Cisco IOS Release 12.0(22)S on a variety of line cards. This release adds support for the Cisco 12000 series IP Services Engine (ISE) line cards.


When two Route Processors (RPs) are installed in a Cisco 12000 series router chassis, one RP acts as the active RP, and the other acts as a backup, or standby, RP. If the active RP fails, or is removed from the system, the standby RP detects the failure and initiates a switchover. During a switchover, the standby RP assumes control of the router, connects with the network interfaces, and activates the local network management interface and system console.

Using the Route Processor Redundancy Plus (RPR+) feature, the standby RP is fully initialized and configured, which allows RPR+ to dramatically shorten the switchover time if the active RP fails, or if a manual switchover is performed. Because both the startup and running configuration are continually synchronized from the active to the standby RP, line cards are not reset during a switchover. The interfaces remain up during this transfer, so neighboring routers do not detect a link flap (that is, the link does not go down and back up).

RPR+ is now supported on Cisco 12000 series ISE line cards. For information about how to configure and use RPR+, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st17/rpr_plus.htm

IPv6 Extended Access Control Lists

Platform: Cisco 12000 series

In Cisco IOS Release 12.2(2)T or later releases and Cisco IOS Release 12.0(21)ST, standard IP version 6 (IPv6) access control list (ACL) functionality is used for basic traffic filtering functions—traffic filtering is based on source and destination addresses, inbound and outbound to a specific interface, and with an implicit deny statement at the end of each access list (which is functionality similar to standard ACLs in IP version 4 [IPv4]).

IPv6 ACLs are defined and their deny and permit conditions are set by using the ipv6 access-list command with the deny and permit keywords in global configuration mode.

In Cisco IOS Release 12.0(23)S or later releases, the standard IPv6 ACL functionality is extended to support—in addition to traffic filtering based on source and destination addresses—filtering of traffic based on IPv6 option headers and optional, upper-layer protocol type information for finer granularity of control (functionality similar to extended ACLs in IPv4). IPv6 ACLs are defined by using the ipv6 access-list command in global configuration mode and their permit and deny conditions are set by using the deny and permit commands in IPv6 access list configuration mode. (Configuring the ipv6 access-list command places the router in IPv6 access list configuration mode, from which permit and deny conditions can be set for the defined IPv6 ACL.)

For more information, see the IPv6 for Cisco IOS Software document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm

IPv6 on Additional Cisco 12000 Series Line Cards

Platform: Cisco 12000 series


Note IP version 6 (IPv6) was introduced in Cisco IOS Release 12.0(22)S. This release is porting the feature into additional Cisco 12000 series line cards. See also the "IPv6 Hardware Forwarding on Cisco 12000 Series ISE Line Cards" section.


IP is a packet-based protocol used to exchange data, voice, and video traffic over digital networks. IP handles addressing, fragmentation, reassembly, and protocol demultiplexing. It is the foundation on which all other IP protocols (collectively referred to as the IP Protocol suite) are built. As a network-layer protocol, IP contains addressing and control information that allows data packets to be routed. IPv6, formerly called IPng (next generation), is the latest version of IP that offers many benefits, such as a larger address space, over the previous version of IP (version 4).

For more information, see the IPv6 for Cisco IOS Software document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm

Cisco IOS Release 12.0(23)S introduces support for IPv6 on the following Cisco 12000 series line cards:

Cisco 12000 series Dynamic Packet Transport (DPT) line cards:

2-port OC-12c/STM-4c DPT line card

1-port OC-48c/STM-16c DPT line card

4OC-48c/STM-16c DPT line card

OC-192c/STM-64c DPT line card

Cisco 12000 series Gigabit Ethernet line card:

1-port 10-Gigabit Ethernet line card

Modular Gigabit Ethernet line card


Note On the above-mentioned Gigabit Ethernet line cards, native IPv6 forwarding is supported in the slow path (that is, via the CPU); hardware-accelerated IPv6 forwarding through a server card is not yet supported.


Cisco 12000 series Packet-over-SONET (POS) line cards:

4-port OC-3c/STM-1c POS/SDH line card

8-port OC-3c/STM-1c POS/SDH line card

16-port OC-3c/STM-1c POS/SDH line card

16-port OC-3c/STM-1c POS/SDH ISE line card

1-port OC-12c/STM-4c POS/SDH line card

4-port OC-12c/STM-4c POS/SDH line card

4-port OC-12c/STM-4c POS/SDH ISE line card

1-port OC-48c/STM-16c POS/SDH line card

1-port OC-48c/STM-16c POS/SDH ISE line card

4-port OC-48c/STM-16c POS/SDH line card

1-port OC-192c/STM-64c POS/SDH line card

16-port Channelized OC-3/STM-1 (DS3/E3) POS/SDH ISE line card

4-port Channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE line card

1-port Channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c) POS/SDH, OC-12c/STM-4c ISE line card

Layer 2 Tunneling Protocol Version 3

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10720, Cisco 12000 series

Layer 2 Tunneling Protocol version 3 (L2TPv3) is an Internet Engineering Task Force (IETF) l2tpext working group draft that provides several enhancements to the Layer 2 Tunnel Protocol for the capability to tunnel any Layer 2 payload over L2TP. Specifically, L2TPv3 defines the L2TP protocol for tunneling Layer 2 payloads over an IP core network using Layer 2 Virtual Private Networks (Layer 2 VPNs).

L2TPv3 signaling is responsible for negotiating control plane parameters, session IDs and cookies, for performing authentication, and for exchanging configuration parameters. L2TPv3 is also used to reliably deliver hello messages and circuit status messages. These messages are critical to support circuit interworking, such as the Local Management Interface (LMI), and to monitor the remote circuit status.

L2TPv3 has two parts:

A control plane responsible for setting up the connection.

A data plane responsible for tunneling Layer 2 frames.

L2TPv3 provides Xconnect (Layer 2 tunneling via a pseudowire over IP) and Layer 2 VPN (provider edge [PE]-to-PE router service via Xconnect) support for Ethernet, 802.1q VLAN, Frame Relay, High-Level Data Link Control (HDLC), and PPP Layer 2 circuits, including both static (Universal Tunnel Interface [UTI]-like) and dynamic (using the new L2TPv3 signaling) forwarded sessions.

The UTI protocol is a Cisco proprietary protocol that offers a simple high-speed transparent Layer 2-to-Layer 2 service over an IP backbone. The UTI protocol lacks the signaling capability and standards support necessary for large-scale commercial service. To answer the need for a standard way to provide large-scale VPN connectivity over an IP core network, migration from UTI to L2TPv3 is introduced in Cisco IOS Release 12.0(23)S.

For more information about the L2TPv3 feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/l2tpv3.htm

Link Bundling

Platform: Cisco 12000 series

The Link Bundling feature allows you to group multiple point-to-point links into one logical link to provide higher bidirectional bandwidth (a bigger pipe), redundancy, and load sharing between two routers. The following types of link bundling are supported on Cisco 12000 series routers:

Gigabit EtherChannel is used to bundle multiple Gigabit Ethernet (GE) interfaces.

POS Channel is used to bundle multiple Packet-over-SONET (POS) interfaces.

Use link bundling on Cisco 12000 series routers in networks under the following conditions:

Faster links do not exist.

The next step available for increasing link capacity is too expensive.

The operational costs to increase link capacity are too high.

Gigabit Ethernet and POS Channel link bundling on Cisco 12000 series routers provide flexible and incremental bandwidth with link redundancy and higher layer transparency to network applications. You can use Gigabit EtherChannel and POS channel in multiple locations in the same network.

For information about how to configure and use link bundling, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/lnkbndl.htm

Manual IPv6 Tunnels

Platform: Cisco 12000 series

In previous releases, traffic with a destination of, or received from an IP version 6 (IPv6) tunnel that was manually configured would be processed by the Route Processor (RP) in the Cisco 12000 series router. The Manual IPv6 Tunnels feature allows IPv6 tunnel traffic that is manually configured to be processed in the Cisco IOS software on the CPU of the line card, which results in an enhanced performance.

For more information, see the IPv6 for Cisco IOS Software document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm

MPLS Enhancements to the Interfaces MIB

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

The Interfaces MIB (IF-MIB) provides a method for managing interfaces that is based on Simple Network Management Protocol (SNMP). Each entry in the IF-MIB establishes indexing, statistics, and stacking relationships among underlying physical interfaces, subinterfaces, and Layer 2 protocols that exist within Cisco IOS software.

The enhancements add a Multiprotocol Label Switching (MPLS) layer to the IF-MIB as a Layer 2 protocol to provide statistics for traffic encapsulated as MPLS on an interface. In this new structure, MPLS data, such as MPLS-encapsulated traffic counters and the MPLS maximum transmission unit (MTU), resides on top of the underlying physical or virtual interface to allow separation from non-MPLS data.

The enhancements also allow you to view indexing, statistics, and stacking relationships using the ifStackTable. MPLS layer interfaces are stacked above the underlying physical or virtual interface that is actually forwarding the MPLS traffic. MPLS traffic engineering tunnels are then stacked above those MPLS layers.

The IF-MIB supports several types of interfaces. A virtual interface that provides protocol statistics for MPLS-encapsulated traffic has been added. This new interface is stacked above real Cisco IOS interfaces or subinterfaces, such as Ethernet (eth0)or ATM (atm1/1.1).

Cisco IOS software creates a corresponding MPLS sublayer above each interface capable of supporting MPLS when the MPLS encapsulation is enabled by issuing the mpls ip interface configuration command.

You can also create the interface layer if you enable MPLS traffic engineering (TE) by using the mpls traffic-eng tunnels interface configuration command.


Note You must also issue these commands in global configuration mode for MPLS IP or MPLS TE, or for both, to be enabled.


An IF MIB entry is created when you enable MPLS IP or MPLS TE tunnels, or both, on an interface; the entry is removed when you disable both MPLS IP and MPLS TE. For more information about the Interfaces MIB, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fsifemib.htm

MPLS Static Labels

Platform: Cisco 7200 series, Cisco 7500 series, Cisco 12000 series

Generally, label switching routers (LSRs) dynamically learn the labels they should use to label-switch packets by means of label distribution protocols that include:

Label Distribution Protocol (LDP), the Internet Engineering Task Force (IETF) standard, used to bind labels to network addresses

Resource Reservation Protocol (RSVP) used to distribute labels for traffic engineering (TE)

Border Gateway Protocol (BGP) used to distribute labels for Multiprotocol Label Switching Virtual Private Networks (MPLS VPNs)

To use a learned label to label-switch packets, an LSR installs the label into its label forwarding information base (LFIB).

The MPLS Static Labels feature provides the means to configure statically:

The binding between a label and an IP version 4 (IPv4) prefix

The contents of an LFIB crossconnect entry

For more information about the MPLS Static Labels feature, see the Cisco document at the following location:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/products_white_paper09186a00801b23af.shtml

MPLS Traffic Engineering (TE) on the Cisco 10720 Router

Platform: Cisco 10720


Note The MPLS Traffic Engineering (TE) feature was introduced in Cisco IOS Release 12.0(5)S. This release is porting the feature into the Cisco 10720 router: the feature is supported on Packet-over-SONET interfaces on the 2-port OC-48c/STM-16c POS/DPT uplink card.


Multiprotocol Label Switching (MPLS) traffic engineering enables an MPLS backbone to replicate and expand upon the traffic engineering capabilities of Layer 2 ATM and Frame Relay networks. Traffic engineering is essential for service provider and Internet service provider (ISP) backbones. Both backbones must support a heavy use of transmission capacitance, the networks must be very resilient, so that they can withstand link or node failures.

MPLS traffic engineering has the following features:

Provides an integrated approach to traffic engineering. With MPLS, traffic engineering capabilities are integrated into Layer 3, which optimizes the routing of IP traffic, given the constraints imposed by backbone capacity and topology.

Routes traffic flows across a network based on the resources the traffic flow requires and the resources available in the network.

Employs constraint-based routing in which the path for a traffic flow is the shortest path that meets the resource requirements (constraints) of the traffic flow.

In MPLS traffic engineering, the traffic flow has bandwidth requirements, media requirements, a priority versus other flows, and so on.

Recovers to link or node failures that change the topology of the backbone by adapting to a new set of constraints.

On the Cisco 10720 router, MPLS traffic engineering is supported on Packet-over-SONET interfaces on the 2-port OC-48c/STM-16c POS/DPT uplink card.

For more information about the MPLS Traffic Engineering feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fs23te.htm

MPLS VPN Carrier Supporting Carrier for Additional Cisco 12000 Series Line Cards

Platform: Cisco 12000 series

The following sections describe MPLS VPN Carrier Supporting Carrier features:

MPLS VPN Carrier Supporting Carrier on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card

MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card


Note The MPLS VPN Carrier Supporting Carrier and MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution features were introduced in Cisco IOS Release 12.0(22)S. This release is porting the features into the Cisco 12000 series 3-port Gigabit Ethernet line card and the 8-port OC-3/STM-1 ATM line card.


MPLS VPN Carrier Supporting Carrier on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card

The MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution feature is now supported in 3-port Gigabit Ethernet line cards in the Cisco 12000 series routers. The MPLS VPN Carrier Supporting Carrier feature enables one MPLS VPN-based service provider to allow other service providers to use a segment of its backbone network.

For more information about MPLS VPN Carrier Supporting Carrier, see the Cisco document at following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fscsc23.htm

MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card

The MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution feature (that is, with labels) allows you to configure your carrier supporting carrier (CsC) network to enable Border Gateway Protocol (BGP) to transport routes and Multiprotocol Label Switching (MPLS) labels between the backbone carrier provider edge (PE) routers and the customer carrier customer edge (CE) routers. Previously you had to use Label Distribution Protocol (LDP) to carry the labels and an Interior Gateway Protocol (IGP) to carry the routes between PE and CE routers to achieve the same goal.

Feature Implementation on the 3-Port Gigabit Ethernet Line Card

The MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution feature is implemented on the Cisco 12000 series 3-port Gigabit Ethernet line card in its own microcode bundle.

To verify that the CsC microcode bundle is loaded, use the show controller psa feature command in privileged EXEC mode as shown here:

Router# show controller psa feature

CsC

-- This bundle supports: ---------------------

Basic IP Forwarding

Basic MPLS Switching

Sampled Netflow

MPLS VPN

CsC

Multicast

Per Packet Loadbalancing

Source MAC Accounting

Further Information

For more information about MPLS VPN Carrier Supporting Carrier—IPv4 BGP Label Distribution (with labels), see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fscscl23.htm

MPLS VPN Features for Additional Cisco 12000 Series Line Cards

Platform: Cisco 12000 series

The following sections describe MPLS VPN features:

MPLS-VPN Support on the Cisco 12000 Series Modular Gigabit Ethernet Line Card and the 1-Port 10-Gigabit Ethernet Line Card

Ethernet over MPLS on the Cisco 12000 Series Modular Gigabit Ethernet Line Card and the 1-Port 10-Gigabit Ethernet Line Card

VLAN-to-MPLS VPN Mapping on the Cisco 12000 Series Modular Gigabit Ethernet Line Card and the 1-Port 10-Gigabit Ethernet Line Card


Note The MPLS VPN features were introduced in Cisco IOS Release 12.0(22)S. This release is porting selected MPLS VPN features into the Cisco 12000 series Modular Gigabit Ethernet line card and the 1-port 10-Gigabit Ethernet line card.


MPLS-VPN Support on the Cisco 12000 Series Modular Gigabit Ethernet Line Card and the 1-Port 10-Gigabit Ethernet Line Card

The Virtual Private Network (VPN) feature for Multiprotocol Label Switching (MPLS) allows a Cisco IOS network to deploy scalable IPv4 Layer 3 VPN backbone services. An IP VPN is the foundation companies use for deploying or administering value-added services including applications and data hosting network commerce, and telephony services to business customers.

For information about how to configure and use MPLS VPNs, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fsvpn23.htm

Ethernet over MPLS on the Cisco 12000 Series Modular Gigabit Ethernet Line Card and the 1-Port 10-Gigabit Ethernet Line Card

The Ethernet over MPLS (EoMPLS) feature enables you to connect two VLAN networks that are in different locations, without using bridges, routers, or switches at the VLAN locations. You can enable the Multiprotocol Label Switching (MPLS) backbone network to accept Layer 2 VLAN traffic by configuring the label edge routers (LERs) at both ends of the MPLS backbone. The EoMPLS feature is part of the Any Transport over MPLS (AToM) product set.

For information about how to configure and use EoMPLS, see the see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/atom/index.htm

VLAN-to-MPLS VPN Mapping on the Cisco 12000 Series Modular Gigabit Ethernet Line Card and the 1-Port 10-Gigabit Ethernet Line Card

The VLAN-to-MPLS VPN Mapping feature allows you to configure the Multiprotocol Label Switching Virtual Private Network (MPLS VPN) feature on VLAN subinterfaces. You associate a VLAN subinterface with a VPN routing/forwarding instance (VRF). A VRF defines the VPN membership of a customer site that is attached to a provider edge (PE) router.

MPLS VPN Interautonomous System on Additional Cisco 12000 Series Line Cards

Platform: Cisco 12000 series

The following sections describe MPLS VPN Interautonomous System features:

MPLS VPN—Interautonomous System Support on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card

MPLS VPN Inter-AS—IPv4 BGP Label Distribution on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card


Note The MPLS VPN—Interautonomous System Support and MPLS VPN Inter-AS—IPv4 BGP Label Distribution features were introduced in Cisco IOS Release 12.0(22)S for the Cisco 7200 series and Cisco 7500/RSP series routers and for selected Cisco 12000 series line cards. This release is porting the feature into the Cisco 12000 series 3-port Gigabit Ethernet line card and the 8-port OC-3/STM-1 ATM line card.


MPLS VPN—Interautonomous System Support on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card

The MPLS VPN—Interautonomous Systems Support feature allows a Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) to span service providers and autonomous systems. In some cases, VPNs need to reside on different autonomous systems in different geographic areas. (An autonomous system is a single network or group of networks that is controlled by a common system administration group and that uses a single, clearly defined routing protocol.) Also, some VPNs need to extend across multiple service providers (overlapping VPNs).

The MPLS VPN—Interautonomous Systems Support feature provides seamless integration of autonomous systems and service providers. Separate autonomous systems from different service providers can communicate by exchanging IPv4 network layer reachability information (NLRI) in the form of VPN-IPv4 addresses. The autonomous systems boundary routers (ASBRs) use the Exterior Border Gateway Protocol (EBGP) to exchange that information. Then, an Interior Gateway Protocol (IGP) distributes the network layer information for VPN-IPv4 prefixes throughout each VPN and each autonomous system.

For more information about MPLS VPN—Interautonomous System Support, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fsias23.htm

MPLS VPN Inter-AS—IPv4 BGP Label Distribution on the Cisco 12000 Series 3-Port Gigabit Ethernet Line Card and 8-Port OC-3/STM-1 ATM Line Card

The MPLS VPN Inter-AS—IPv4 BGP Label Distribution feature enables you to set up a Virtual Private Network (VPN) service provider network so that the autonomous systems boundary routers (ASBRs) exchange IPv4 routes with Multiprotocol Label Switching (MPLS) labels of the provider edge (PE) routers. Route reflectors exchange Virtual Private Network version 4 (VPNv4) routes, using multihop, multiprotocol external Border Gateway Protocol (BGP). This configuration saves the ASBRs from having to store all the VPNv4 routes. Using the route reflectors to store the VPNv4 routes and forward them to the PE routers results in improved scalability.

For more information about MPLS VPN Inter-AS—IPv4 BGP Label Distribution, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fsiasl23.htm

MQC match cos Command

Platform: Cisco 10720 router


Note The MQC match cos Command feature is also known under the feature title Modular QoS CLI (MQC) Match CoS.


The match cos command is now supported on the modular quality of service command-line interface (MQC) that is used to specify a traffic class and configure quality of service (QoS) policies for Cisco 10720 router interfaces.

Use the match cos command in QoS class-map configuration mode to match a packet based on a Layer 2 class of service (CoS) marking.

For more detailed information about the match cos command, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/mcli.htm

Multicast-VPN—IP Multicast Support for MPLS VPNs

Platforms: Cisco 7200 series, Cisco 7500 series

The Multicast-VPN—IP Multicast Support for MPLS VPNs feature allows a service provider to configure and support multicast traffic in a Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) environment. Because MPLS VPNs support only unicast traffic connectivity, deploying the Multicast-VPN feature in conjunction with MPLS VPN allows service providers to offer both unicast and multicast connectivity to MPLS VPN customers.

This feature supports routing and forwarding of multicast packets for each individual VPN routing and forwarding (VRF) instance, and it also provides a mechanism to transport VPN multicast packets across the service provider backbone.

The Multicast-VPN feature in Cisco IOS software provides the ability to support the multicast feature over a Layer 3 VPN. As enterprises extend the reach of their multicast applications, service providers can accommodate these enterprises over their MPLS core network. IP multicast is used to stream video, voice, and data to an MPLS VPN network core.

A VPN is network connectivity across a shared infrastructure, such as an Internet service provider (ISP). Its function is to provide the same policies and performance as a private network, at a reduced cost of ownership, thus creating many opportunities for cost savings through operations and infrastructure.

Historically, IP in IP generic route encapsulation (GRE) tunnels was the only way to connect through a service provider network. Although such tunneled networks tend to have scalability issues, they represent the only means of passing IP multicast traffic through a VPN.

MPLS was derived from tag switching and various other vendor methods of IP-switching support enhancements in the scalability and performance of IP-routed networks by combining the intelligence of routing with the high performance of switching. MPLS is now used for VPNs, which is an appropriate combination because MPLS decouples information used for forwarding of the IP packet (the label) from the information carried in the IP header.

A multicast VPN allows an enterprise to transparently interconnect its private network across the network backbone of a service provider. The use of a multicast VPN to interconnect an enterprise network in this way does not change the way that enterprise network is administered, nor does it change general enterprise connectivity.

For more information about the Multicast-VPN—IP Multicast Support for MPLS VPNs feature, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/12smvpn.htm

OSPF Shortest Path First Throttling

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, and Cisco 12000 series

The OSPF Shortest Path First Throttling feature makes it possible to configure Shortest Path First (SPF) scheduling in millisecond intervals and to potentially delay SPF calculations during network instability. SPF is scheduled to calculate the Shortest Path Tree (SPT) when there is a change in topology. One SPF run may include multiple topology change events.

The interval at which the SPF calculations occur is chosen dynamically and is based on the frequency of topology changes in the network. The chosen interval is within the boundary of the user-specified value ranges. If network topology is unstable, SPF throttling calculates SPF scheduling intervals to be longer until the topology becomes stable.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/fsspftrl.htm

OSPF Support for Fast Hellos

Platforms: Cisco 7200 series, Cisco 7500 series, Cisco 10000 series, and Cisco 12000 series

The OSPF Support for Fast Hellos feature provides a way to configure hello packets at an interval less than 1 second. Such a configuration would result in faster convergence in an Open Shortest Path First (OSPF) network.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/fasthelo.htm

PFE MIB

Platform: Cisco 10000 series

The PFE MIB (CISCO-ENTITY-PFE-MIB.my) contains objects to monitor the utilization, efficiency, and performance of the Packet Forwarding Engine (PFE). The monitoring is done via measurement periods of actual, 1 minute, 5 minutes, and 15 minutes.

On the Cisco 10000 series router, the PFE is the parallel express forwarding (PXF) network processor, which is part of the performance routing engine (PRE). PFE technology accelerates certain IP features in order to improve network performance.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10kfm/pfe_mib.htm

Sampled NetFlow on the Cisco 10720 Internet Router

Platform: Cisco 10720

The Sampled NetFlow feature enables you to sample one out of many IP packets that are being forwarded to an interface. Sampled packets are accounted for in the NetFlow flow cache of the router. Sampling packets substantially decreases the CPU utilization that is needed to account for NetFlow packets, by allowing the majority of the packets to be switched faster because they do not require additional NetFlow processing. For information about how to configure and use Sampled NetFlow, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s11/12s_sanf.htm

The Sampled NetFlow implementation on the Cisco 10720 router includes the following additional features:

An snf_feed_back counter in the output of the show hardware pxf cpu context command displays the number of packets that are sampled and punted to the Route Processor (RP) by Parallel Express Forwarding (PXF).

An snf counter in the output of the show hardware pxf cpu statistics diversion command displays the number of sampled packets received by the RP from PXF.

The ip flow ingress command has the same effect on a main Ethernet interface as it does on a subinterface. (This effect is different on the Cisco 12000 series router, for which you can use only the ip flow ingress command to enable the Sampled NetFlow feature on a subinterface. The command has no effect on a main interface.)


Note The snf_feed_back and snf counters may have different values if the PXF RP queue is congested. In this case, the snf value should be equal to or less than the snf_feed_back value because some sampled packets are dropped from the PXF RP queue. The snf value should never be greater than the snf_feed_back value.

The
ip route-cache flow command is not supported on the Cisco 10720 router.


SNMP Support for VPNs

Platform: Cisco 7500 series, Cisco 10000 series, Cisco 12000 series

The SNMP Support for VPNs feature enables you to send and receive Simple Network Management Protocol (SNMP) notifications using Virtual Private Networks (VPN) routing forwarding (VRF) tables.

SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. A VPN is a network that provides high connectivity transfers on a shared system with the same usage guidelines as a private network. A VPN can be built over IP, Frame Relay, or ATM networks.

A VRF stores per-VPN routing data. It defines the VPN membership of a customer site attached to the network access server (NAS). A VRF consists of an IP routing table, a derived Cisco Express Forwarding (CEF) table, guidelines, and routing protocol parameters that control the information that is included in the routing table.

The SNMP Support for VPNs feature provides configuration commands that allow you to associate SNMP agents and managers with specific VRFs. The specified VRF is used to send SNMP notifications (traps and informs) and responses between agents and managers. If a VRF is not specified, the default routing table for the VPN is used.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/cs23vpn.htm

New Hardware and Software Features in Cisco IOS Release 12.0(22)S1 to Cisco IOS Release 12.0(22)S6

There are no new hardware or software features in Cisco IOS Release 12.0(22)S1 to Cisco IOS Release 12.0(22)S6.

New Hardware Features in Cisco IOS Release 12.0(22)S

This section describes new and changed features in Cisco IOS Release 12.0(22)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(22)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

4-Port OC-3 ATM Line Card

Platform: Cisco 10000 series

The 4-port OC-3 ATM line card provides four 155.52-Mbps SONET/Synchronous Digital Hierarchy (SDH) connections to ATM networks. It uses a standard implementation of ATM over SONET switching to provide four trunk uplinks for the Cisco 10000 series edge services router.


Note This feature has been ported from Cisco IOS Release 12.0ST.


6-Port OC-3/POS Line Card

Platform: Cisco 10000 series

The 6-port OC-3/POS line card allows Internet access and provider-to-provider peering through Cisco 10000 equipment via unchannelized OC-3 interfaces. To meet global requirements, the card supports both SONET (STS3c) and Synchronous Digital Hierarchy (SDH) (STM1c) framing and signaling.


Note This feature has been ported from Cisco IOS Release 12.0ST.


8-Port OC-3/STM-1 ATM Line Card for Cisco 12000 Series Internet Routers

Platform: Cisco 12000 series routers

The 8-port OC-3/STM-1 ATM line card supports traffic shaping, and delivers line rate OC-3/STM-1 bandwidth while traffic shaping and per-virtual circuit (VC) queueing are performed. It also supports per-VC class-based weighted fair queueing (CBWFQ) and per-VC low latency queueing (LLQ).

The 8-port OC-3/STM-1 ATM line card can be configured with 64 Segmentation and Reassembly (SAR) Weighted Random Early Detection/Drop (WRED) packs per interface, for a total of 512 SAR WRED packs. Any or all of these packs can be reconfigured by the Cisco IOS software. CBWFQ is implemented on a per-VC basis, with up to eight queues per VC. You can choose to select LLQ mode by enabling the Modified Deficit Round Robin (MDRR) feature. Both per-VC WRED and per-VC CBWFQ are performed on the SAR.

The 8-port OC-3/STM-1 ATM line card provides the Cisco 12000 series product line with eight 155 Mbps ATM interfaces. The card communicates with the Cisco 12000 series product line switch fabric.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/8_oc3_lc.htm

8-Port Unchannelized E3/T3 Line Card

Supported platform: Cisco 10000 series routers

The 8-port unchannelized E3/T3 line card is an advanced E3 and T3 interface module for the Cisco 10000 series edge services router (ESR). It supports eight physical BNC connections, which can be configured for E3 or T3. Each E3 or T3 connection can either support a full clear-channel or be subrated by limiting the data transfer rate, and thereby reducing the peak access rate.

Subrate modes configure each interface of the 8-port unchannelized E3/T3 line card to connect with Cisco port adapters and with customer premises data service units (DSUs). The 8-port unchannelized E3/T3 line card supports maximum flexibility in that it can be used in any Cisco 10000 series ESR chassis (with no slot dependency) and can be hot-swapped. It is fully manageable by means of standard Cisco management tools, and it supports all IP networking protocols. In addition, it supports the following encapsulation protocols:

PPP

Frame Relay

Cisco High-Level Data Link Control (HDLC)

Multiprotocol Label Switching (MPLS)


Note This feature has been ported from Cisco IOS Release 12.0ST.


10 Gbps POS Enhanced Services Line Cards

Platform: Cisco 12000 series

The 1-port OC-192 POS Enhanced Services (ES, also referred to as Engine 4 plus) and Quad OC-48 POS ES line cards for Cisco 12400 Internet routers support an extensive list of features that enable service providers to provide customers with the means to build scalable, feature-rich 10G networks that support value-added services, such as MPLS Virtual Private Network (VPN), voice, and tiered service offerings, without compromising performance.

Cisco IOS Release 12.0(22)S supports all the features in Release 12.0(21)S (see the note below) along with the following additional features:

MPLS VPN features (see the "MPLS VPN and Fast Reroute on 10 Gbps POS Enhanced Services Line Cards" section).

Basic MPLS VPN support.

Inter-provider VPN (also known as Interautonomous System): allows a scalable MPLS VPN service to span different service providers.

Carrier supporting Carrier (CsC): allows carriers to use MPLS VPN to offer transport services to other service providers.

Fast Reroute (see the "MPLS VPN and Fast Reroute on 10 Gbps POS Enhanced Services Line Cards" section).

High availability.


Note Cisco IOS Release 12.0(21)S introduced the following ES line card features that are listed under the section Engine 4 POS Line Card Enhancements: access control lists (ACLs) on inbound and outbound interfaces, NetFlow sampling on inbound and outbound IP flows, and output rate shaping.


For information about how to install and configure 10 Gbps POS Enhanced Services line cards, see the Cisco documents at the following locations:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_pos/11420q48.htm

http://www.cisco.com/univercd/cc/td/doc/product/core/cis12000/linecard/lc_pos/11421192.htm


Note This feature has been ported from Cisco IOS Release 12.0ST.


Cisco 24-Port Channelized E1/T1 Line Card

Platform: Cisco 10000 series

The Cisco 24-port channelized E1/T1 line card is a full-slot line card with 24 ports that you can configure as E1/T1 interfaces. Each port on the line card provides one or more interfaces that can be configured as framed (channelized) or unframed (unchannelized) interfaces.

The following E1 features are supported on the Cisco 24-port channelized E1 line card:

European 2.048 Mbps International Telecommunication Union (ITU) G.703 and G.704 serial interfaces

Cyclic Redundancy Check (CRC4) and non-CRC4 framing modes

High-Level Data Link Control (HDLC) protocol, Frame Relay protocol, and PPP encapsulations

Nx64 Kbps channel bandwidths in channelized E1 mode (where N = 0 < N < 31) and a 2048 Kbps single channel bandwidth in unframed E1 mode

Clock source selected on a per-port basis—internal or external line

Programmable National Reserved bits

High Density Bipolar 3 (HDB3) line encoding

The following T1 features are supported on the Cisco 24-port channelized T1 line card:

North American 1.554 Mbps serial interfaces

Extended Superframe (ESF) and Superframe (SF) framing modes

High-Level Data Link Control (HDLC) protocol, Frame Relay protocol, and PPP encapsulations

Nx64 Kbps channel bandwidths in channelized T1 mode (where N = 0 < N < 24)

Clock source selected on a per-port basis—internal or external line

ESF-Facility Data Link (FDL) remote performance reporting

Remote loopbacks

Binary 8-0 substitution (B8ZS) or alternative mark inversion (AMI) line encoding

Cisco 10000 Series Edge Services Router

The Cisco 10000 series edge services router (ESR) is a Layer 3 platform that allows service providers to provision IP services across thousands of leased-line connections. The Cisco 10000 series ESR aggregates large numbers of T3, T1, and DS0 leased lines through OC-12 Packet-over-SONET (POS) and Gigabit Ethernet interfaces. The Cisco IOS software offers a range of features that service providers can use to improve their network and customize their services.

The series consists of two chassis—an 8-slot chassis designed to meet the needs of large service providers and a 5-slot chassis designed to meet the needs of medium-to-large service providers.


Note This feature has been ported from Cisco IOS Release 12.0ST.


Cisco 10720 Console/Auxiliary Module

Platform: Cisco 10720

The Cisco 10720 Console/Auxiliary Module provides console and auxiliary access to the Cisco 10720 Internet router from the front panel. It is installed in the upper card slot of the router chassis.

You can use the Cisco 10720 Console/Auxiliary Module with either a 24-port 10/100 Ethernet TX or a combined 4-port Gigabit Ethernet 8-port 10/100 Ethernet TX access card to customize the CIsco 10720 as an Ethernet-only router.

For information about how to install, use, and verify the operation of the Cisco 10720 Console/Auxiliary Module, see the Cisco 10720 Internet Router Uplink Card Installation and Configuration Guide at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10720/10720fru/13113upl.htm

Cisco 10720 Internet Router

The Cisco 10720 Internet router is a high performance Cisco IOS router that enables service providers to offer next generation business class IP services within metropolitan networks. Designed with support for 10/100 and later 1000 Mbps Ethernet access and high-speed OC48/STM16 dynamic packet transport (DPT) technology over fiber uplink, the Cisco 10720 Internet router allows service providers to offer IP services that are closer to the user, enabling the users to better control admission to network resources. The small form factor allows easy deployment in central locations within business complexes. Based on Cisco Parallel Express Forwarding (PXF) (Toaster-based) architecture, the Cisco 10720 Internet router is a cost-effective reliable platform that allows advanced Cisco IOS features to be introduced simply, efficiently, and without compromising on performance.


Note This feature has been ported from Cisco IOS Release 12.0ST.


Combined 4-Port Gigabit Ethernet 8-Port 10/100 Ethernet TX Access Card

Platform: Cisco 10720

The Combined 4-Port Gigabit Ethernet 8-Port 10/100 Ethernet TX Access Card with four Gigabit Ethernet and eight Fast Ethernet ports is available on the Cisco 10720 Internet router to provide network access using either Fast Ethernet or Gigabit Ethernet connectivity.

This card supports copper cabling on Fast Ethernet ports, and fiber-optic cabling on its Gigabit Ethernet ports. The Gigabit Ethernet ports use Small Form-Factor Plugable (SFP) optical modules to provide the following optical interfaces:

1000BASE-SX (short reach)

1000BASE-LH (intermediate reach)

1000BASE-ZX (long reach)

For more information about how to install and configure the Combined 4-Port Gigabit Ethernet 8-Port 10/100 Ethernet TX access card, see the Cisco IOS Software Configuration for the Cisco 10720 Internet Router at the following location:

http://www.cisco.com/en/US/docs/ios/12_0st/12_0st17/feature/guide/10720.html

OC-3c/STM-1c POS/SDH ISE Line Cards

Platform: Cisco 12000 series

OC-3c/STM-1c POS/SDH ISE line cards for the Cisco 12000 series Internet router provide 155 Mbps of bandwidth on each interface and include the following:

4-port OC-3c/STM-1c POS/SDH ISE

8-port OC-3c/STM-1c POS/SDH ISE

16-port OC-3c/STM-1c POS/SDH ISE

OC-3/STM-1c Packet-over-SONET (POS) line cards are available in the following versions:

Short-reach (SR), multi-mode

Intermediate-reach (IR), multi-mode

Long-reach (LR), multi-mode

The OC-3/STM-1c POS line card connection is concatenated, which provides for increased efficiency by eliminating the need to partition the bandwidth.

PA-MC-8TE1+ Port Adapter

Platforms: Cisco 7200 series, Cisco 7500/RSP series

The PA-MC-8TE1+ port adapter is a multichannel port adapter that provides eight DSX-1/DS1 or eight G.703 interfaces. The PA-MC-8TE1+ interfaces can be channelized, fractional, ISDN PRI, or nonframed.

The PA-MC-8TE1+ port adapter supports Facility Data Link (FDL) in Extended Superframe (ESF) framing on T1 networks, as well as network and payload loopbacks. Bit error rate testing (BERT) is supported on each of the T1 or E1 links and can run on all of the eight ports at the same time.

The PA-MC-8TE1+ port adapter does not support the aggregation of multiple T1s or E1s (called inverse muxing or bonding) for higher bandwidth data rates. The multichannel PA-MC-8TE1+ port adapter supports Cisco High-Level Data Link Control (HDLC), Frame Relay, PPP, and Switched Multimegabit Data Service (SMDS) Data Exchange Interface (DXI) encapsulations over each T1 or E1 link. For SMDS only, DXI is sent on the T1 or E1 line, so it needs to connect to an SMDS switch that has direct DXI input.

For more information, see the Cisco documents at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/portadpt/multicha/8port_t1/index.htm

RSP16

Platform: Cisco 7500/RSP series

The Route Switch Processor 16 (RSP16) is the latest-generation, main system processor module for the Cisco 7500 series routers. The RSP16 is not available as an upgrade to an existing RSP, but supports VIP2, VIP4, and the new VIP6-80. The RSP16 contains the CPU and most of the memory components for the router.

For more information, see the Route Switch Processor (RSP16) Installation and Configuration Guide at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis7505/rte_swit/13963r16.htm

SONET APS 1+1 for 4-Port OC-3 ATM and 1-Port OC-12 ATM Line Cards

Platform: Cisco 10000 series

In Cisco IOS Release 12.0(22)S, the Cisco 10000 series edge services router (ESR) supports SONET Automatic Protection Switching (APS) 1+1 redundancy for the 4-port OC-3 ATM and 1-port OC-12 ATM line cards. APS 1+1 support is card-to-card. When the active line card fails, the redundant line card takes over. For line cards with multiple ports (such as the 4-port OC-3 ATM line card), you can also use APS 1+1 support to switch from one port to another port as long as the redundant port is on a different line card.

The Cisco 10000 series ESR supports SONET APS operation that is:

Linear—Connections are made back-to-back (as opposed to connections that are made via a ring topology).

Unidirectional—Transmit and receive channels are switched independently.

Nonreverting—Nonreverting channels continue to operate after a failure has been corrected, thus preventing data from flowing back to the working channel.


Note APS 1:1 redundancy is not supported in Cisco IOS Release 12.0(22)S.


For information about configuring APS on a Cisco 10000 series ESR, see the following Cisco document:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/apsos.htm


Note This feature has been ported from Cisco IOS Release 12.0ST.


VIP6

Platform: Cisco 7500/RSP series

The Cisco Versatile Interface Processor 6-80 Services Accelerator (VIP6-80) is the newest and highest-performance versatile interface processor for the Cisco 7500 series routers. The VIP6-80 is not currently available as an upgrade to an existing VIP.

The VIP6-80 has a main processor and memory. When distributed switching is enabled on the router, the VIP6-80 can make packet switching decisions to help reduce the load on the Route Switch Processor (RSP). Interfaces located on port adapters that fit into the VIP6-80 connect the router to the external network. Either one dual-width or two single-width port adapters can be used on the VIP6-80.

The VIP6-80 supports Online Insertion and Removal (OIR). VIP6-80 port adapters do not support OIR, so you must first remove the VIP6-80 before removing or installing the port adapters.

For more information, see the Versatile Interface Processor (VIP6-80) Installation and Configuration Guide at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis7505/vip1/14372v68.htm

New Software Features in Cisco IOS Release 12.0(22)S

This section describes new and changed features in Cisco IOS Release 12.0(22)S. Some features may be new to Cisco IOS Release 12.0S but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.0(22)S. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.

3-Port Gigabit Ethernet Line Card MPLS-VPN Features

Platform: Cisco 12000 series

The following MPLS-VPN features are supported on the 3-port Gigabit Ethernet line card for the Cisco 12000 series Internet routers:

MPLS-VPN support

VLAN to MPLS VPN mapping

Explicit Null

VLAN "P" bits mapping to IP ToS/MPLS COS bits


Note This feature has been ported from Cisco IOS Release 12.0ST.


802.1p Support on the Cisco 10720 Internet Router

Platform: Cisco 10720

The IEEE 802.1p standard provides a means for individual end stations to request a particular quality of service (QoS) of the network and for the network to respond accordingly. 3-bits in the 802.1Q header with values ranging from 0 to 8 can be used to set different priority levels of user traffic at Layer 2. In the context of the Cisco 10720 router, the Modular QoS feature is used to set the 802.1p bits, similar to setting the IP type of service (ToS) bits. The switches that are deployed behind the Cisco 10720 router that supports this feature can take advantage of the priority bits for providing a higher quality of service for certain types of traffic.


Note This feature has been ported from Cisco IOS Release 12.0ST.


802.1q Support for the Cisco 10720 Internet Router

Platform: Cisco 10720

The term "VLAN" refers to the ability to virtually create a LAN using a switched architecture. Rather than being defined on a physical or geographical basis, VLANs can be defined on a logical or organizational basis in which the network can be configured via software. The IEEE standard 802.1q defines the operation of VLAN bridges that permit the definition, operation, and administration of VLAN topologies within a bridged LAN infrastructure. This standard is based on a frame-tagging mechanism to identify the specific VLAN.


Note This feature has been ported from Cisco IOS Release 12.0ST.


Any Transport over MPLS: ATM AAL5 over MPLS

Platform: Cisco 12000 series

The Any Transport over MPLS: ATM AAL5 over MPLS feature, part of the Any Transport over MPLS (AToM) product set, provides an ATM permanent virtual circuit (PVC) for transporting ATM adaptation layer 5 (AAL5) protocol data units (PDUs) across an IP/Multiprotocol Label Switching (MPLS) backbone with rate-limit policing and configurable PVC priority values. A dynamic MPLS tunnel is configured to enable label imposition and disposition of encapsulated ATM PDUs transported between two edge routers having a Label Distribution Protocol (LDP) neighbor relationship.

Each routed PVC label stack has two levels of labels prepended to each ATM PDU: an Interior Gateway Protocol (IGP) stack consisting of zero or more labels and a PVC-based label. Label imposition and disposition are performed by routers at the edge of the MPLS backbone. The imposition router takes the ATM PDU and encapsulates it in an MPLS PDU for transport to the correct disposition router. The disposition router takes the MPLS PDU, de-encapsulates the ATM PDU, and delivers it to the correct ATM interface and virtual path identifier/virtual circuit identifier (VPI/VCI).

In Cisco 12000 series Internet routers, AAL5 over MPLS label disposition is supported on the following engines and line cards:

Engine 0:

4-port OC-3c/STM-1c POS/SDH line cards

1-port OC-12c/STM-4c POS/SDH line cards

Engine 2:

3-port Gigabit Ethernet line cards

8-port OC3c/STM-1c POS/SDH line cards

16-port OC3c/STM-1c POS/SDH line cards

4-port OC12c/STM-4c POS/SDH line cards

1-port OC48c/STM-16c POS/SDH line cards

1-port OC-48c/STM-16c DPT line cards

In Cisco 12000 series Internet routers, AAL5 over MPLS label imposition and disposition are supported on the following engines and line cards:

Engine 0:

4-port OC-3c/STM-1c ATM line cards

1-port OC-12c/STM-4c ATM line cards

4-port OC-12c/STM-4c ATM line cards

For further information, see the Cisco document MPLS AToM—ATM AAL5 over MPLS at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st21/fsaal5.htm


Note In Cisco IOS Release 12.0(22)S, line card support on Cisco 12000 series Internet routers for the Any Transport over MPLS: ATM AAL5 over MPLS feature is based on the existing control plane. In future Cisco IOS releases, a revised control plane for AToM will be implemented.



Note This feature has been ported from Cisco IOS Release 12.0ST. Any Transport over MPLS used to be referred to as MPLS AToM.


Any Transport over MPLS: Ethernet over MPLS

The following features appear under this feature heading:

Any Transport over MPLS: Ethernet over MPLS in Cisco 10720 Internet Routers

Any Transport over MPLS: Ethernet over MPLS in Cisco 12000 Series Internet Routers

Any Transport over MPLS: Ethernet over MPLS in Cisco 10720 Internet Routers

Platform: Cisco 10720

The Any Transport over MPLS: Ethernet over MPLS feature, part of the Any Transport over Multiprotocol Label Switching (AToM) product set, is now supported on the Cisco 10720 Internet routers. This feature allows you to connect two VLAN networks that are in different locations, without using expensive bridges, routers, or switches at the VLAN locations. You enable the MPLS backbone network to accept Layer 2 VLAN traffic by configuring the label edge routers (LERs) at both ends of the MPLS backbone.

The Cisco 10720 Internet router also supports the VLAN ID Rewrite feature for Ethernet over MPLS (EoMPLS) connections. The egress side of an EoMPLS connection that is mapped to a VLAN rewrites the VLAN ID in outgoing packets to the ID of the local VLAN. This feature allows you to use VLAN interfaces with different VLAN IDs at either end of the MPLS backbone.

For more information, see the MPLS AToM—Ethernet over MPLS document for the Cisco 10720 Internet router at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/12s10k.htm

Any Transport over MPLS: Ethernet over MPLS in Cisco 12000 Series Internet Routers

Platform: Cisco 12000 series

The Any Transport over MPLS: Ethernet over MPLS feature, part of the Any Transport over Multiprotocol Label Switching (AToM) product set, allows you to connect two VLAN networks that are in different locations, without using expensive bridges, routers, or switches at the VLAN locations. You can enable the MPLS backbone network to accept Layer 2 VLAN traffic by configuring the label edge routers (LERs) at both ends of the MPLS backbone.

In Cisco 12000 series Internet routers, Ethernet over MPLS label imposition is supported on the following engines and line cards:

Engine 2:

3-port Gigabit Ethernet line cards

In Cisco 12000 series Internet routers, Ethernet over MPLS label disposition is supported on the following engines and line cards:

Engine 2:

3-port Gigabit Ethernet line cards

8-port OC3c/STM-1c POS/SDH line cards

16-port OC3c/STM-1c POS/SDH line cards

4-port OC12c/STM-4c POS/SDH line cards

1-port OC48c/STM-16c POS/SDH line cards

Engine 4+:

4-port OC-48c/STM-16c POS line cards

1-port OC-192c/STM-64c POS/SDH line cards

For further information, see the Cisco document MPLS AToM—Ethernet over MPLS at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st21/eompls20.htm


Note This feature has been ported from Cisco IOS Release 12.0ST. Any Transport over MPLS used to be referred to as MPLS AToM.


ARP Optimization

Platforms: Cisco 7200 series, Cisco 7500/RSP series, Cisco 12000 series

The Address Resolution Protocol (ARP) is used to map a Layer 3 IP address to a Layer 2 MAC address. A Cisco router stores this mapped information in an ARP table. The ARP table provides MAC rewrite information when the router is forwarding a packet using Cisco Express Forwarding (CEF) or other IP switching technologies.

In previous versions of Cisco IOS, the ARP table was organized for easy searching on an entry based on the IP address. However, there are cases such as interface flapping on the router and a topology change in the network in which all related ARP entries need to be refreshed for correct forwarding. This situation could consume a significant amount of CPU time in the ARP process to search and clean up all the entries. The ARP Optimization feature improves ARP performance by reducing the ARP searching time by using an improved data structure.

The ARP Optimization feature introduces one new command: clear arp interface. This command clears the entire ARP cache on an interface.

For more information, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/arpoptim.htm

ATM PVCs

Platform: Cisco 10000 series

The Cisco 10000 series edge services router (ESR) now supports 4000 ATM permanent virtual circuits (PVCs).


Note This feature has been ported from Cisco IOS Release 12.0ST.


AutoInstall in Cisco 10720 Internet Routers

Platform: Cisco 10720

The AutoInstall feature allows you to configure a new Cisco 10720 Internet router automatically and dynamically. The AutoInstall procedure involves connecting a new router to a network in which an existing router is preconfigured, turning on the new router, and enabling it with a configuration file that is automatically downloaded from a TFTP server, reachable through the dynamic packet transport (DPT) /Spatial Reuse Protocol (SRP) uplink interface on the Cisco 10720 Internet router. If no startup configuration has already been saved in the router, the AutoInstall procedure is invoked when the router starts.

For more detailed information about the AutoInstall feature, see the Using Configuration Tools document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/fun_c/fcprt1/fccfgtoo.htm

Automatic Protection Switching on 2-Port Channelized OC-3/STM-1 (DS1/E1) Line Cards

Platform: Cisco 12000 series

The Automatic Protection Switching (APS) feature is supported on 2-port channelized OC-3/STM-1 (DS1/E1) line cards in Cisco 12000 series Internet routers. This feature allows switchover of Packet-over-SONET (POS) circuits in the event of circuit failure and is often required when connecting SONET equipment to telco equipment. APS refers to the mechanism of using a "protect" POS interface in the SONET network as the backup for the "working" POS interface. When the working interface fails, the protect interface quickly assumes its traffic load.

The protection mechanism used for this feature has "1+1, architecture" as described in the Bellcore publication TR-TSY-000253, SONET Transport Systems; Common Generic Criteria, Section 5.3. The connection may be bidirectional or unidirectional, and revertive or nonrevertive.

For more information about automatic protection switching of POS circuits, see the Cisco document at the following location:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios112/ios112p/gsr/posapsgs.htm

Auto-Shutdown Feature Changes

Platform: Cisco 10000 series

In Cisco IOS Release 12.0(22)S, the following changes have been made to the Auto-Shutdown feature for the Cisco 10000 series edge services routers (ESR):

Fan events no longer cause an auto-shutdown of the ESR. This behavior differs from the behavior noted on the fan tray labels.

By default, the ESR no longer shuts down automatically when a critical temperature threshold is exceeded. Now, you must enable auto-shutdown by issuing the facility-alarm command with critical exceed-action shutdown keyword. Then, if the core temperature exceeds its critical threshold (85°C) for 2 minutes, or the intake temperature exceeds its critical threshold (67°C) for 2 minutes, the ESR shuts down automatically.

BGP Conditional Route Injection

Platforms: Cisco 7200 series, Cisco 7500/RSP series, Cisco 10000 series, Cisco 12000 series

Cisco IOS software provides several methods in which you can originate a prefix into the Border Gateway Protocol (BGP). The existing methods include using the network or aggregate-address commands