Cisco 7600 Series Router SIP, SSC, and SPA Software Configuration Guide
Overview of the SIPs and SSC
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Overview of the SIPs and SSC

Table Of Contents

Overview of the SIPs and SSC

Release History

Supported SIP Features

Cisco 7600 SIP-200 Features

Cisco 7600 SIP-200 High-Availability Features

Cisco 7600 SIP-200 ATM Features

Cisco 7600 SIP-200 Frame Relay Features

Cisco 7600 SIP-200 MPLS Features

Cisco 7600 SIP-200 Multiservice Features

Cisco 7600 SIP-200 QoS Features

Cisco 7600 SIP-200 Fragmentation Features

Cisco 7600 SIP-200 Layer 2 Protocols and Encapsulation

Cisco 7600 SIP-200 Layer 2 Interworking

Cisco 7600 SIP-400 Features

Cisco 7600 SIP-400 High-Availability Features

Cisco 7600 SIP-400 MPLS Features

Cisco 7600 SIP-400 QoS Features

Cisco 7600 SIP-400 Fragmentation Features

Cisco 7600 SIP-400 Layer 2 Protocols and Encapsulation

Cisco 7600 SIP-400 Layer 2 Interworking

Cisco 7600 SIP-600 Features

Cisco 7600 SIP-600 High Availability Features

Cisco 7600 SIP-600 MPLS Features

Cisco 7600 SIP-600 Layer 2 Protocols and Encapsulation

Cisco 7600 SIP-600 QoS Features

Supported SSC Features

Cisco 7600 SSC-400 Features

Restrictions

Cisco 7600 SIP-200 Restrictions

Cisco 7600 SIP-400 Restrictions

Cisco 7600 SIP-600 Restrictions

Cisco 7600 SSC-400 Restrictions

Supported MIBs

Displaying the SIP and SSC Hardware Type

Example of the show module Command

Example of the show idprom Command

SIP-200 and SIP-400 Network Clock Distribution


Overview of the SIPs and SSC


This chapter provides an overview of the release history, and feature and Management Information Base (MIB) support for the Cisco 7600 SIP-200, Cisco 7600 SIP-400, Cisco 7600 SIP-600, and Cisco 7600 SSC-400.

This chapter includes the following sections:

Release History

Supported SIP Features

Supported SSC Features

Restrictions

Supported MIBs

Displaying the SIP and SSC Hardware Type

SIP-200 and SIP-400 Network Clock Distribution

Release History


Note For release history information about the introduction of SPA support on the SIPs, refer to the corresponding "Overview" chapters in the SPA technology sections of this document. In addition, features specific to certain SPA technologies are documented in the corresponding SPA sections of this document.


Release
Modification

Cisco IOS Release 12.2(33)SRE3

Support added to disable Network Processor crashinfo for all the Network Processor exception

Cisco IOS Release 15.0(1)S

Support for the following features was introduced:

1-Port Clear Channel OC-3 ATM SPA Version 2

3-Port Clear Channel OC-3 ATM SPA Version 2

1-Port Clear Channel OC-12 ATM SPA Version 2

Cisco IOS Release 12.2(33)SRE

Support for the following features was added:

RSP720-10GE supervisor engine was added for SSC-400

IPv6 Hop-by-Hop Header Security on SIP-200

Access Circuit Redundancy on 2-Port OC-3c/STM-1 ATM SPA on SIP-400

VC QoS on VP-PW on SIP-400

Cisco IOS Release 12.2(33)SRD1

Support for IPv6 Hop-by-Hop Header Security and 1xCHOC12STM4 SPA on SIP-400 was introduced

Cisco IOS Release 12.2(33)SRD

Support for the following features was introduced:

AToM - ATM Cell Relay over MPLS, Port Mode on SIP400/SIP200

SPA-8X1FE-TX-V2 & SPA-4X1FE-TX-V2 on SIP400

Hierarchical Queuing Framework (HQF)

CLI to control DBUS CoS priority on SIP400

Private host SVI (Interface VLAN)

Asymmetric Carrier Delay on SIP-200/400/600

Cisco IOS Release 12.2(33)SRC

Support for the following features was introduced:

CT3 CEoP on c7600-SIP-400

Accelerated Lawful Intercept on Cisco 7600 SIP-400

CoPP Enhancements of Cisco 7600 SIP-400

PPPoEoE on Cisco 7600 SIP-400

Source IPv4 and Source MAC Address Binding on Cisco 7600 SIP-400

12in1 Serial SPA support on 7600/SIP200

IMA on SIP-400 for 24xT1/E1 CEOP and 1xOC3 CEOP SPAs

IGMP Snooping support on SIP-200

AFC and PFC support on Multilink Interface on SIP-200 for 2- and 4-port CT3, 8-port channelized T1/E1 channelized, 1-port channelized OC3/STM-1 SPAs

Programmable BERT patterns enhancement on SIP-200 for 2- and 4-port channelized T3 and 1-port channelized OC3/STM-1 SPAs

TDM Local switching

Phase 2 Local Switching Redundancy

SPA-1xCHSTM1/OC3

Cisco Channelized T3 to DS0 Shared Port Adapter (SPA-2XCT3/DS0, SPA-4XCT3/DS0)

Cisco 8-Port Channelized T1/E1 Shared Port Adapter (SPA-8XCHT1/E1)

Cisco Clear Channel T3/E3 Shared Port Adapter (SPA-2XT3/E3, SPA-4XT3/E3)

Cisco IOS Release 12.2(33)SRB1

Support for the following feature was introduced:

MTU support on MLPPP interfaces on a Cisco 7600 SIP-200

Any Transport over MPLS over GRE (AToM over GRE) on a Cisco 7600 SIP-400

Cisco IOS Release 12.2(33)SRB

Support for the following features was introduced:

Software-based MLP bundles from 256 to 1024 on a Cisco 7600 SIP-200

Lawful Intercept on a Cisco 7600 SIP-400

Per-subscriber/per-protocol CoPP support on a Cisco 7600 SIP-400

Security ACLs on a Cisco 7600 SIP-400

Percent priority/percent bandwidth support on a Cisco 7600 SIP-400

Network Clock Support on a Cisco 7600 SIP-200

IGMP/PIM snooping for VPLS pseudowire on a Cisco 7600 SIP-400

Dual-priority queue support on a Cisco 7600 SIP-400

Cisco IOS Release 12.2(33)SRA

Support for the following features was introduced on the Cisco 7600 SIP-200:

Bridge Control Protocol (BCP) over dMLPPP

MPLS over RBE

Multi-VC to VLAN Scalability

QoS support on bridging features

Software-based dMLPPP

Software-based dMLFR

Tag-Native Mode for Trunk BCP

Support for the following features was introduced on the Cisco 7600 SIP-400:

Ethernet over MPLS (EoMPLS) VC Scaling

Ingress/Egress CoS classification with ingress policing per VLAN or EoMPLS VC

Hierarchical VPLS (H-VPLS) with MPLS Edge

Hierarchical QoS support for Ethernet over MPLS (EoMPLS) VCs

Multipoint Bridging (MPB)

Multi-VC to VLAN scalability

Multi-VLAN to VC support

QoS support on bridging features

Tag-Native Mode for Trunk BCP

Cisco IOS Release 12.2(18)SXF

Support for the following SIP hardware was introduced on the Cisco 7600 series router and Catalyst 6500 series switch:

Cisco 7600 SIP-600

Support for the following features was introduced on the Cisco 7600 SIP-400:

Policing by committed information rate (CIR) percentage

QoS matching on class of service (CoS)—2-Port Gigabit Ethernet SPA only

Cisco IOS Release 12.2(18)SXE2

Support for the following SPA services card (SSC) was introduced on the Cisco 7600 series router and Catalyst 6500 series switch:

Cisco 7600 SSC-400

Cisco IOS Release 12.2(18)SXE

Support for the following SPA interface processor (SIP) hardware was introduced on the Cisco 7600 series router and Catalyst 6500 series switch:

Cisco 7600 SIP-200

Cisco 7600 SIP-400


Supported SIP Features

The Cisco 7600 SIP-200, Cisco 7600 SIP-400, and Cisco 7600 SIP-600 are high-performance, feature-rich SPA interface processors that function as carrier cards for shared port adapters (SPAs) on the Cisco 7600 series router. These SIPs are supported on the Cisco 7600 series router and Catalyst 6500 series switch, and are compatible with one or more platform-independent SPAs. For more information on SPA compatibility, see the "SIP, SSC, and SPA Compatibility" section.

The Cisco 7600 series router is an edge aggregation router, and the SIPs provide a cost-effective solution for customers seeking moderate- to high-port density and line rate services:

The Cisco 7600 SIP-200 provides WAN edge aggregation through lower-speed and low-density SPAs for network environments requiring regional office connectivity to headquarters, or collapsed LAN/WAN deployment.

The Cisco 7600 SIP-400 provides higher-speed, high-density link aggregation for network environments requiring leased line and metro aggregation.

The Cisco 7600 SIP-600 provides a high-speed interface for WANs and metro aggregation.

This section provides a list of some of the primary features supported by the SIP hardware and software. For feature compatibility information by SIP and SPA combination, and information about configuring these features, see Chapter 4 "Configuring the SIPs and SSC."

Cisco 7600 SIP-200 Features

Field-programmable device (FPD) upgrade support

The Cisco 7600 SIP-200 supports the standard FPD upgrade methods for the Cisco 7600 series router. For more information about FPD support, see Chapter 35 "Upgrading Field-Programmable Devices."

Cisco 7600 SIP-200 High-Availability Features

Automatic protection switching (APS)—ATM and POS SPAs

Multilink PPP APS performance improvements to decrease switchover time

Online insertion and removal (OIR) of the SIP and SPAs

Nonstop Forwarding (NSF)

Stateful switchover (SSO)—Not supported with dMLFR feature (dMLFR only supports RPR+)

Cisco 7600 SIP-200 ATM Features

Aggregate Weighted Random Early Detection (WRED)

ATM Adaptation Layer 5 (AAL5) Subnetwork Access Protocol (SNAP)

AAL5 over Multiprotocol Label Switching (MPLS)

ATM Cell Relay over MPLS in Port Mode

ATM virtual circuit (VC) bundles

RFC 1483, Multiprotocol Encapsulation over ATM Adaptation Layer 5, Multipoint Bridging (MPB) on the 2-Port and 4-Port OC-3c/STM-1 ATM SPA

VC bundle Class of Service (CoS) precedence mapping

For a comprehensive list of supported and unsupported ATM features, SIP-dependent features, and restrictions see Chapter 6 "Overview of the ATM SPAs."

Cisco 7600 SIP-200 Frame Relay Features

For additional Frame Relay features, see also the MPLS and Quality of Service (QoS) feature sections.


Note Based on your link configuration, Multilink PPP (MLPPP) and Multilink Frame Relay (MLFR) are either software-based on the Cisco 7600 SIP-200, or hardware-based on the 8-Port Channelized T1/E1 SPA, 2-Port and 4-Port Channelized T3 SPA, and 1-Port Channelized OC-3/STM-1 SPA. For more information, see the corresponding configuration chapters for the SIPs and the serial SPAs.


Distributed Multilink Frame Relay (dMLFR) (FRF.16)

Frame Relay over MPLS (FRoMPLS)

Frame Relay VC bundles

Frame Relay switching

RFC 1490, Multiprotocol Interconnect over Frame Relay, Multipoint Bridging (MPB) on the 2-Port and 4-Port Clear Channel T3/E3 SPA, 2-Port and 4-Port Channelized T3 SPA, and the 8-Port Channelized T1/E1 SPA

VC bundle Class of Service (CoS) precedence mapping

Cisco 7600 SIP-200 MPLS Features

Explicit null

Label disposition

Label imposition

Label swapping

QoS tunneling

Virtual private network (VPN) routing and forwarding (VRF) instance description

dMLPPP with MPLS on VPN—Supported between the customer edge (CE) and provider edge (PE) devices

Any Transport over MPLS (AToM) support, including:

ATM over MPLS (ATMoMPLS)—AAL5 VC mode

ATM Cell Relay over MPLS —Port Mode

Ethernet over MPLS (EoMPLS)—(Single cell relay) VC mode

Frame Relay over MPLS (FRoMPLS)

FRoMPLS with dMLFR—Supported between the CE and PE devices

High-Level Data Link Control (HDLC) over MPLS (HDLCoMPLS)

PPP over MPLS (PPPoMPLS)—Not supported with dMLPPP or dLFI

Hierarchical QoS for EoMPLS VCs

Beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-200 adds the following MPLS feature support:

MPLS over RBE—ATM SPAs only

Beginning in Cisco IOS Release 12.2(33)SRB, the Cisco 7600 SIP-200 adds the following support:

Software-based MLP bundles from 256 to 1024

Cisco 7600 SIP-200 MPLS Classification

Default copy of IP precedence to MPLS experimental (EXP) bit

Match on MPLS EXP bit using Modular QoS CLI (MQC)

Cisco 7600 SIP-200 MPLS Congestion Management

Low latency queueing (LLQ)

Class-based weighted fair queueing (CBWFQ)

Cisco 7600 SIP-200 MPLS Encapsulations

ATM AAL5 SNAP

Frame Relay

HDLC

MLPPP

PPP

Cisco 7600 SIP-200 MPLS Marking

Set MPLS EXP bit using MQC

Cisco 7600 SIP-200 MPLS Traffic Shaping

Traffic shaping using MQC

Cisco 7600 SIP-200 Multiservice Features

Compressed Real-Time Protocol (CRTP)

FRF.11—Supported only in Cisco IOS Release 12.2(18)SXE and Cisco IOS Release 12.2(18)SXE2; Support for this feature was removed in Cisco IOS Release 12.2(18)SXF

Cisco 7600 SIP-200 QoS Features

This section provides a list of the Quality of Service (QoS) features that are supported by the Cisco 7600 SIP-200.

Cisco 7600 SIP-200 ATM SPA QoS Implementation

For the 2-Port and 4-Port OC-3c/STM-1 ATM SPA, the following applies:

In the ingress direction, all Quality of Service (QoS) features are supported by the Cisco 7600 SIP-200.

In the egress direction:

All queueing based features (such as class-based weighted fair queueing [CBWFQ], and ATM per-VC WFQ) are implemented on the Segmentation and Reassembly (SAR) processor on the SPA.

Policing is implemented on the SIP.

Class queue shaping is not supported.

Cisco 7600 SIP-200 Packet Marking

IP precedence

Differentiated Services Code Point (DSCP)

Class-based marking

ATM cell loss priority (CLP) to EXP marking/Type of Service (ToS)/DSCP

Frame relay discard eligibility (DE) to EXP marking/ToS/DSCP

Cisco 7600 SIP-200 Policing and Dropping

Aggregate

Dual rate

Hierarchical

DSCP Markdown

Policing—Precedence, DSCP marking

Policing—EXP marking

Policing - Setting priority percent on a policy map

Explicit Drop in Class

Matching packet length

IPv6 Hop-by-Hop Header Security on SIP-200

Cisco 7600 SIP-200 Classification Into a Queue

MPLS EXP

ACL number

Configurable queue size

Network-based application recognition (NBAR)/dSTILE (NBAR feature is not supported in Release 15.0(1)S and later Releases)

Cisco 7600 SIP-200 Congestion Management

Weighted fair queueing (WFQ)

Class-based weighted fair queueing (CBWFQ)

Per-VC CBWFQ

Allocation, DSCP, EXP and precedence matching

LLQ or priority queueing (strict priority only)

Configurable LLQ burst size

Cisco 7600 SIP-200 Congestion Avoidance

Random early detection (RED)

Weighted random early detection (WRED)

DiffServ-compliant WRED

Aggregate WRED—ATM SPAs only

Cisco 7600 SIP-200 Shaping

Generic traffic shaping (GTS)/Distributed traffic shaping (DTS)

Hierarchical service policy with GTS

Hierarchical traffic shaping with Frame Relay (FR)

Hierarchical traffic shaping FR adaptive to FECN, BECN (Cisco 7600 SIP-200 only)

Hierarchical traffic shaping for PPP and HDLC

Ingress shaping

Egress shaping


Note Egress shaping is not supported on the Cisco 7600 SIP-200 for the 2-Port and 4-Port OC-3c/STM-1 ATM SPA.


Shaping by percentage

Cisco 7600 SIP-200 Other QoS Features

Hierarchical QoS for EoMPLS VCs

QoS with MLPPP

Beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-200 adds the following QoS feature support:

QoS on bridging features

Cisco 7600 SIP-200 Fragmentation Features

FRF.12

Cisco 7600 SIP-200 Layer 2 Protocols and Encapsulation

AAL5 Network Layer Protocol ID (NLPID)

AAL5 SNAP

Cisco Frame Relay

IETF Frame Relay

Frame Relay two-octet header

Frame Relay BECN/FECN

Frame Relay PVC

Frame Relay UNI

HDLC

MLPPP

PPP

Cisco 7600 SIP-200 Layer 2 Interworking

ATM VC trunk emulation

Bridged and routed RFC 1483, Multiprotocol Encapsulation over ATM Adaptation Layer 5

RFC 1483, Multiprotocol Encapsulation over ATM Adaptation Layer 5, Multipoint Bridging (MPB)

RFC 1490, Multiprotocol Interconnect over Frame Relay, Multipoint Bridging (MPB)

Bridging of Routed Encapsulations (BRE)

Routed bridged encapsulation (RBE)


Note RBE is not supported when using the Intermediate System-to-Intermediate System (IS-IS) routing protocol.


RFC 3518, Point-to-Point Protocol (PPP) Bridging Control Protocol (BCP)

Beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-200 adds the following Layer 2 interworking feature support:

BCP support on 8-Port Channelized T1/E1 SPA, 2-Port and 4-Port Channelized T3 SPAs,
1-Port Channelized OC-3/STM-1 SPA, 2-Port and 4-Port Clear Channel T3/E3 SPAs,
and 2-Port and 4-Port OC-3c/STM-1 POS SPAs

BCP (trunk mode) support over MLPPP on 8-Port Channelized T1/E1 SPA, 2-Port and 4-Port Channelized T3 SPAs, and 1-Port Channelized OC-3/STM-1 SPA

Multi-VC to VLAN scalability

QoS support on bridging

Software-based MLPPP

Software-based MLFR

Asymmetric Carrier Delay

Cisco 7600 SIP-400 Features

FPD upgrade support—The Cisco 7600 SIP-400 supports the standard FPD upgrade methods for the Cisco 7600 series router. For more information about FPD support, see Chapter 35 "Upgrading Field-Programmable Devices."

Lawful Intercept—The Cisco 7600 SIP-400 supports Lawful Intercept in Cisco IOS Release 12.2(33)SRB and later releases.

The following features are not supported on SIP-400 EVC:

EVC on Port-Channel

MST on EVC BD

REP integration with EVC

802.1ah with EVC

CFM for EVC connected to BD

L2 ACL on EVC

IP Source Guard on EVC

MAC security on EVC

DHCP snooping with Option 82 insertion on EVC

DAI on EVC

Broadcast storm control on Port with EVC and switchport

EVC groups

UDLD on port with EVC

Y.1731 (AIS, RDI) on EVC connected to BD

L3/L4 ACL on EVC

Flexible Service Mapping on EVC

LAG UNI Manual loadbalancing

802.1ag (Draft 8.1) over EVC


Note Network Processor crashinfo also known as eventinfo is disabled for all Network Processor exception by default.


Cisco 7600 SIP-400 High-Availability Features

Automatic protection switching (APS)—ATM and POS SPAs

Multi Link PPP APS performance improvements to decrease switchover time with PPP/MLPPP bundles

Online insertion and removal (OIR) of the SIP and SPAs

Stateful switchover (SSO)

Access Circuit Redundancy (ACR) and ACR QoS on all the following ATM SPAs on SIP-400:

2-Port OC-3c/STM-1 ATM SPA

1-Port OC-12c/STM-4 ATM SPA

1-Port OC-48c/STM-16 ATM SPA

Cisco 7600 SIP-400 MPLS Features


Note For the Cisco 7600 SIP-400, the following MPLS features are implemented on the Supervisor Engine 720 (PFC3B and PFC3BXL) and the Route Switch Processor 720 (PFC3C and PFC3CXL): Label imposition, label swapping, label disposition, explicit null, default copy of IP precedence to EXP bit classification, and QoS tunneling. For more information about the requirements for Policy Feature Cards (PFCs) on the Cisco 7600 series router, refer to the Release Notes for Cisco IOS Release 12.2SX on the Supervisor Engine 720, Supervisor Engine 32, and Supervisor Engine 2 at the following URL: http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html


VRF description

Any Transport over MPLS (AToM) support, including:

ATMoMPLS—AAL0 mode (single cell relay only)

ATMoMPLS—AAL5 mode

ATMoMPLS—Port Mode

EoMPLS—Port mode

EoMPLS—VLAN mode

FRoMPLS—DLCI mode

Beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-400 adds the following MPLS feature support:

Ethernet over MPLS (EoMPLS) VC scaling

Ingress/Egress CoS classification with ingress policing per VLAN or EoMPLS VC

Hierarchical VPLS (H-VPLS) with MPLS Edge

Hierarchical QoS support for Ethernet over MPLS (EoMPLS) VCs

Effective from Cisco IOS Release 15.1(01)S, the Cisco 7600 SIP-400 adds support for:

Hot-Standby PsuedoWire (HSPW) Support for Ethernet, ATM and TDM ACs

Cisco 7600 SIP-400 MPLS Congestion Management

LLQ

CBWFQ

Cisco 7600 SIP-400 MPLS Encapsulations

ATM AAL5 SNAP

Ethernet with 802.1q

Frame Relay

HDLC

Generic Routing Encapsulation (GRE)

PPP

Cisco 7600 SIP-400 MPLS Marking

Set MPLS EXP bits at tag imposition using MQC (set mpls-experiment command)—Input IP interface

Set MPLS EXP bits on topmost label (set EXP topmost) using MQC (set mpls-experiment topmost command)—Input and output MPLS interface

Mapping Ethernet 802.1q priority bits to MPLS EXP bits for EoMPLS

Cisco 7600 SIP-400 QoS Features

This section provides a list of the Quality of Service (QoS) features that are supported by the Cisco 7600 SIP-400.

Cisco 7600 SIP-400 Packet Marking

IP precedence (set ip precedence command)—Input and output

DSCP (set dscp command)—Input and output

Class-based marking

DE to EXP marking/ToS/DSCP

CLP to EXP marking/ToS/DSCP

Ethernet 802.1q priority bits to EXP marking (EoMPLS)

Cisco 7600 SIP-400 Policing and Dropping

Dual rate

Hierarchical

Dual-rate policer with three-color marker

Policing—Percent

Policing—Precedence, DSCP marking

Policing—EXP marking

Policing—Set ATM CLP, FR DE

Policing—Set MPLS EXP bits on topmost label (set EXP topmost)

Policing - Setting priority percent on a policy map

Explicit Drop in Class

IPv6 Hop-by-Hop Header Security

Triple nesting QoS on policy-maps


Note The QoS policy-maps supports the command shape average, but does not support the command shape peak.


Cisco 7600 SIP-400 Classification Into a Queue

Access control lists (IPv4 and IPv6)

Access group (match access-group command)—Input and output

Address (IPv6 compress mode only)

Name

Number

Source and destination port

TCP flag (IPv4 only)

ATM CLP (match atm clp command)—Input ATM interface

Configurable queue size

CoS (match cos command)—Input and output dot1q tagged frames

Frame Relay DE (match fr-de command)—Input Frame Relay interface

Inner CoS (match cos inner command)

IP DSCP (match dscp command)—Input and output

IP precedence (match ip precedence command)—Input and output

MPLS EXP (match mpls experimental command)—Input and output MPLS interface

Multiple matches per class map (up to 8)

Beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-400 adds the following QoS classification feature support:

Ingress/Egress CoS classification with ingress policing per VLAN or EoMPLS VC

Beginning in Cisco IOS Release12.2(33)SRE support is added for:

Modular QoS CLI (MQC) policy support existing on ATM VC is extended to the ATM PVP on 2-Port and 4-Port OC-3c/STM-1 ATM SPA and the below three flavors of CEoP SPA:

SPA-24XT1E1-CE

SPA-1XOC3-CE

SPA-2XT3E3-CE

ATM VCI (match atm-vci command)—Input ATM PVP Interface is added to the ATM VP

Cisco 7600 SIP-400 Congestion Management

CBWFQ

Per-VC CBWFQ

DSCP, EXP and Precedence matching

LLQ or priority queueing (strict priority only)


Note For the 12.2(33) SRD a parent shaper or conditional policer has no effect when only LLQ traffic is flowing through a physical port. For example, if only 200 Mbps of LLQ traffic is flowing, a 100-Mbps parent shaper gives the full 200-Mbps output. However, if the ratio of LLQ to non-LLQ traffic on a subinterface is such that the LLQ rate is higher than the non-LLQ rate, the shaper output is inaccurate. (For example, on a system configured for 200 Mbps of LLQ and 500 kbps of non-LLQ, a 100-Mbps parent shaper gives 165-Mbps output. Therefore, we recommend that customers configure an explicit policer if the LLQ traffic rate might exceed the parent shape rate, which could starve regular traffic significantly.


Hierarchical Queuing Framework (HQF)

Dual-priority queuing

CLI to control DBUS CoS queuing
This feature allows users to configure which DBUS CoS values are mapped to the high-priority queue in the SIP-400 switch. The hw-module slot slot queue priority switch-fpga output cos values|none command is used on the Routing Processor (RP) to configure the priority values.

Cisco 7600 SIP-400 Congestion Avoidance

RED

WRED

DiffServ-compliant WRED

Aggregate WRED—ATM SPAs only

Cisco 7600 SIP-400 Shaping

Hierarchical traffic shaping using class-default (not supported for user-defined class)

Hierarchical traffic shaping FR

Hierarchical traffic shaping for PPP and HDLC

Egress shaping

Cisco 7600 SIP-400 Fragmentation Features

dLFI with ATM

Cisco 7600 SIP-400 Layer 2 Protocols and Encapsulation

PPP

AAL5 SNAP

HDLC

Cisco Frame Relay

IETF Frame Relay

Frame Relay two-octet header

Frame Relay BECN/FECN

Frame Relay PVC

Frame Relay UNI

Cisco 7600 SIP-400 Layer 2 Interworking

Bridged and routed RFC 1483, Multiprotocol Encapsulation over ATM Adaptation Layer 5

RFC 3518, Point-to-Point Protocol (PPP) Bridging Control Protocol (BCP), on the 2-Port and 4-Port OC-3c/STM-1 POS SPA and 1-Port OC-12c/STM-4 POS SPA.

Beginning in Cisco IOS Release 12.2(33)SRB1, the Cisco 7600 SIP-400 supports:

Backup Interface for Flexible UNI (for Gigabit Ethernet SPAs)

Beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-400 supports:

BCP on POS SPAs (OC-3c/STM-1, OC-12c/STM-4, OC-48c/STM-16, and OC-192c/STM-64)

Multipoint Bridging (MPB)

Multi-VC to VLAN scalability

QoS support on bridging features

L2VPN Interworking (Ethernet VLAN to ATM AAL5)
Six types of configurations for L2VPN Interworking (Ethernet VLAN to ATM AAL5) are supported on the SIP-400. For configuration procedures, refer to the following URL: http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_l2vpn_intrntwkg.html

Asymmetric Carrier Delay

BFD for VCCV (Phase 1) Type1 Support on SIP-400 to verify and diagnose the forwarding path of pseudowires

Cisco 7600 SIP-600 Features

FPD upgrade support—The Cisco 7600 SIP-600 supports the standard FPD upgrade methods for the Cisco 7600 series router. For more information about FPD support, see Chapter 35 "Upgrading Field-Programmable Devices."

Layer 2 switch port

EtherChannel and Link Aggregate Control Protocol (IEEE 802.3ad)

Control Plane Policing (CoPP)

Cisco IOS Release 12.2(33)SRE and later releases introduce support for IEEE 802.1ag Draft 8.1 compliant Connectivity Fault Management (CFM) on EVC on SIP-600. This includes the ability to configure 802.1ag to monitor the VPLS core using CFM on the VFI.
See details of CFM and 802.1ag configuration on http://www.cisco.com/en/US/docs/ios/12_2sr/12_2sra/feature/guide/srethcfm.html.

Cisco 7600 SIP-600 High Availability Features

Automatic protection switching (APS)

Online insertion and removal (OIR) of the SIP and SPAs

Nonstop Forwarding (NSF)

Stateful switchover (SSO)

Cisco 7600 SIP-600 MPLS Features

Unicast switching, with specific support for up to six label push operations, one label pop operation (two label pop operations in case of Explicit Null), or one label swap with up to five label push operations, at each MPLS switch node

Support for Explicit Null label to preserve CoS information when forwarding packets from provider (P) to provider edge (PE) routers

Support for Implicit Null label to request that penultimate hop router forward IP packets without labels to the router at the end of the label switch path (LSP)

VRF

Traffic engineering

Any Transport over MPLS (AToM) support—EoMPLS only, including:

PFC-based (No MAC address learning)

SIP-based (MAC address learning, requires SIP as uplink)

Up to 4000 EoMPLS VCs per system

Virtual Private LAN Service (VPLS) support, including:

H-VPLS with MPLS edge—H-VPLS with MPLS edge requires either an OSM or Cisco 7600 SIP-600 in both the downlink (facing UPE) and uplink (MPLS core). For more information about configuring H-VPLS, see Chapter 12 "Configuring the Fast Ethernet and Gigabit Ethernet SPAs."

H-VPLS with Q-in-Q edge—Requires Cisco 7600 SIP-600 in the uplink, and any LAN port or Cisco 7600 SIP-600 on the downlink

Up to 4000 VPLS domains

Up to 60 VPLS peers per domain

Up to 30,000 pseudowires, used in any combination of domains and peers up to the 4000-domain or 60-peer maximums; for example, support of up to 4000 domains with 7 peers or up to 60 peers in 500 domains

MPLS Operation, Administration, and Maintenance (OAM) support, including:

LSP ping and traceroute

Virtual Circuit Connection Verification (VCCV)

Cisco 7600 SIP-600 Layer 2 Protocols and Encapsulation

HDLC (Cisco Systems)

PPP

PPP over SONET/SDH

Layer 2 Gigabit Ethernet support, including:

IEEE 802.3z 1000 Mbps Gigabit Ethernet

IEEE 802.3ab 1000BaseT Gigabit Ethernet

IEEE 802.3ae 10 Gbps Ethernet (1-Port 10-Gigabit Ethernet SPA only)

Jumbo frame (up to 9216 bytes)

ARPA, IEEE 802.3 SAP, IEEE 802.3 SNAP, Q-in-Q

IEEE 802.1q VLANs

Autonegotiation support including IEEE 802.3 flow control and pause frames

Gigabit Ethernet Channel (GEC)

IEEE 802.3ad link aggregation

Address Resolution Protocol (ARP)/Reverse ARP (RARP)

Hot Standby Router Protocol (HSRP)

Virtual Router Redundancy Protocol (VRRP)

Cisco 7600 SIP-600 QoS Features

This section provides a list of the Quality of Service (QoS) features that are supported by the Cisco 7600 SIP-600.

MQC

Cisco 7600 SIP-600 Packet Marking

IP precedence (set ip precedence command)

DSCP (set dscp command)

MPLS EXP (match mpls experimental command)


Note Mapping 802.1p CoS values to MPLS EXP bits is supported using EoMPLS only.


Cisco 7600 SIP-600 Policing and Dropping

Input policing on a per-port and per-VLAN basis

Cisco 7600 SIP-600 Classification Into a Queue

Input and output ACLs on a per-port and per-VLAN basis

Input VLAN (match input vlan command)

IP DSCP (match dscp command)

IP precedence (match ip precedence command)

MPLS EXP (match mpls experimental command)

QoS group (match qos-group command)

VLAN (match vlan command)

Cisco 7600 SIP-600 Congestion Management

CBWFQ

LLQ

Cisco 7600 SIP-600 Congestion Avoidance

WRED

Cisco 7600 SIP-600 Shaping

Output shaping on a per-port and per-VLAN basis

Output hierarchical traffic shaping—Two levels of shaping on an interface, subinterface, or group of subinterfaces

Supported SSC Features

The Cisco 7600 SSC-400 is a streamlined services card that provides a very high bandwidth data path between the Cisco 7600 series router platform backplane and the high-speed interconnects on the IPSec VPN SPA.

For more information about the features and configuration supported by the IPSec VPN SPA with the Cisco 7600 SSC-400, see the related chapters in the IPSec VPN Shared Port Adapter part of this book.

Cisco 7600 SSC-400 Features

Support of up to two IPSec VPN SPAs per slot

Online insertion and removal (OIR) of the SSC and SPAs

Support for RSP720-10GE supervisor engine is added for SSC-400 beginning with Cisco IOS Release 12.2(33)SRE

Restrictions

This section documents unsupported features and feature restrictions for the SIPs and SSC on the Cisco 7600 series router.

Cisco 7600 SIP-200 Restrictions

As of Cisco IOS Release 12.2(18)SXE, the Cisco 7600 SIP-200 has the following restrictions:

The Cisco 7600 SIP-200 is not supported with a Supervisor Engine 1, Supervisor Engine 1A, Supervisor Engine 2, or Supervisor Engine 720A.

A maximum number of 200 PVCs or SVCs using Link Fragmentation and Interleaving (LFI) is supported for all ATM SPAs (or other ATM modules) in a Cisco 7600 series router.

The following features are not supported:

ATM LAN Emulation (LANE)

dLFI over Frame Relay (dLFIoFR)

PPP over Frame Relay (PPPoFR)

MLP over Frame Relay (MLPoFR)

dLFI with MPLS

Layer 2 Tunneling Protocol (L2TP) version 2

L2TP version 3

Legacy Priority Queueing and Custom Queueing

PPP over Ethernet (PPPoE)

Reliable PPP (RFC 1663, PPP Reliable Transmission)

Stacker Compression (STAC)

X.25, Link Access Procedure, Balanced (LAPB)

PPP over MPLS (PPPoMPLS) is not supported with dMLPPP or dLFI.

High availability (HA) features have some restrictions when configured with the following distributed features on the Cisco 7600 SIP-200:

When you configure HA with dMLFR, the Cisco 7600 SIP-200 only supports RPR+.

HA features with dLFI over ATM (dLFIoATM) are not supported.

HA features with dLFI over Frame Relay (dLFIoFR) are not supported.

NBAR feature is not supported in Release 15.0(1)S and later Releases.

Cisco 7600 SIP-400 Restrictions

In Cisco IOS Release 12.2(18)SXE and later, the Cisco 7600 SIP-400 has the following restrictions:

The Cisco 7600 SIP-400 is not supported with a Supervisor Engine 1, Supervisor Engine 1A, or Supervisor Engine 2. It is also not supported with a Supervisor Engine 720 PFC3A, or in PFC3A mode.

For more information about the requirements for Policy Feature Cards (PFCs) on the Cisco 7600 series router, refer to the Release Notes for Cisco IOS Release 12.2SX on the Supervisor Engine 720, Supervisor Engine 32, and Supervisor Engine 2 at the following URL: http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html

The Cisco 7600 SIP-400 is not supported with PFC-2 based systems.

EtherChannel is not supported on Cisco 7600 SIP-400

A maximum number of 200 PVCs or SVCs using Link Fragmentation and Interleaving (LFI) is supported for all ATM SPAs (or other ATM modules) in a Cisco 7600 series router.

For AToM in Cisco IOS 12.2SX releases, the Cisco 7600 SIP-400 does not support the following features when they are located in the data path. This means you should not configure the following features if the SIP is facing the customer edge (CE) or the MPLS core:

HDLCoMPLS

PPPoMPLS

Virtual Private LAN Service (VPLS)

For AToM beginning in Cisco IOS Release 12.2(33)SRA, the Cisco 7600 SIP-400 supports the following features on CE-facing interfaces:

HDLCoMPLS

PPPoMPLS

VPLS

The Cisco 7600 SIP-400 supports EoMPLS with directly connected provider edge (PE) devices when the Cisco 7600 SIP-400 is on the MPLS core side of the network.

The Cisco 7600 SIP-400 does not support the ability to enable or disable tunneling of Layer 2 packets, such as for the VLAN Trunking Protocol (VTP), Cisco Discovery Protocol (CDP), and bridge protocol data unit (BPDU). The Cisco 7600 SIP-400 tunnels BPDUs, and always blocks VTP and CDP packets from the tunnel.

In ATMoMPLS AAL5 and cell mode, the Cisco 7600 SIP-400 supports non-matching VPIs/VCIs between PEs if the Cisco 7600 SIP-400 is on both sides of the network.

The Cisco 7600 SIP-400 supports matching on FR-DE to set MPLS-EXP for FRoMPLS.

The Cisco 7600 SIP-400 supports use of the xconnect command to configure AToM circuits for all AToM connection types.

The Cisco 7600 SIP-400 does not support the following QoS classification features with AToM:

Matching on data-link connection identifier (DLCI) is unsupported.

Matching on virtual LAN (VLAN) is unsupported.

Matching on class of service (CoS) is unsupported in Cisco IOS Release 12.2(18)SXE and Cisco IOS Release 12.2(18)SXE2 only. Beginning in Cisco IOS Release 12.2(18)SXF, it is supported with the 2-Port Gigabit Ethernet SPA.

Matching on input interface is unsupported.

Matching on packet length is unsupported.

Matching on media access control (MAC) address is unsupported.

Matching on protocol type, including Border Gateway Protocol (BGP), is unsupported.

The Cisco 7600 SIP-400 does not support the following QoS classification features using MQC:

ACL IPv6 full address

ACL IPv6 TCP flags

Class map (match class-map command)

CoS inner (match cos inner command)—Supported beginning in Cisco IOS Release 12.2(33)SRA on 2-Port Gigabit Ethernet SPA input and output interfaces and with bridging features.

Destination sensitive services (DSS)

Discard class (match discard-class command)

Frame Relay DLCI (match fr-dlci command)—Supported beginning in Cisco IOS Release 12.2(33)SRA on Frame Relay input and output interfaces and with Frame Relay bridging features.

Input interface (match input-interface command)

Input VLAN (match input vlan command)—Supported beginning in Cisco IOS Release 12.2(33)SRA on output interfaces only.

IP RTP (match ip rtp command)

IPv4 and IPv6 ToS

MAC address (match mac command)

Match protocol (match protocol command)—Supports IP only.

Packet length (match packet length command)

QoS group (match qos-group command)

Source and destination autonomous system (AS) (match as command)

Source and destination Border Gateway Protocol (BGP) community (match bgp-community command)

VLAN (match vlan command)

VLAN inner (match vlan inner command)—Supported beginning in Cisco IOS Release 12.2(33)SRA on input and output interfaces and with bridging features.

The Cisco 7600 SIP-400 does not support the following QoS marking features:

CoS (set cos command)

CoS inner (set cos inner command)

The Cisco 7600 SIP-400 does not support the following QoS marking features using MQC:

QoS group (set qos-group command)

Next-hop (set next-hop command)

Discard class (set discard-class command)

Table (set table command)

The Cisco 7600 SIP-400 does not support the following QoS queueing actions using MQC:

Flow-based queueing

Adaptive shaping

The Cisco 7600 SIP-400 does not support the following QoS policing feature:

Policing by Committed Information Rate (CIR) percentage (police cir percent command)—Supported as of Cisco IOS Release 12.2(18)SXF.

The Cisco 7600 SIP-400 does not support the following Frame Relay features:

Matching on DLCI.

Bridging encapsulation.

Multicast on multipoint interfaces.

FRF.5

FRF.8.

FRF.12 fragmentation

FRF.16 multilink support of four-octet extended addressing on an SVC

NNI

PVC bundling

PPP over Frame Relay

The Cisco 7600 SIP-400 does not support RFC 1483, Multiprotocol Encapsulation over ATM Adaptation Layer 5, Multipoint Bridging (MPB). However, point-to-point bridging is supported.

As of Cisco IOS Release 12.2(18)SXF, when using the Cisco 7600 SIP-400 with the 2-Port Gigabit Ethernet SPA or the 1-Port OC-48c/STM-16 ATM SPA, consider the following oversubscription guidelines:

The Cisco 7600 SIP-400 only supports installation of one 1-Port OC-48c/STM-16 ATM SPA without any other SPAs installed in the SIP.

The Cisco 7600 SIP-400 supports installation of up to two 2-Port Gigabit Ethernet SPAs without any other SPAs installed in the SIP.

The Cisco 7600 SIP-400 supports installation of any combination of OC-3 or OC-12 POS or ATM SPAs, up to a combined ingress bandwidth of OC-48 rates.

The Cisco 7600 SIP-400 supports installation of any combination of OC-3 or OC-12 POS or ATM SPAs up to a combined ingress bandwidth of OC-24 rates, when installed with a single 2-Port Gigabit Ethernet SPA.
For more details on SIP-400 oversubscription guidelines refer to

Q-in-Q (the ability to map a single 802.1Q tag or a random double tag combination into a VPLS instance, a Layer 3 MPLS VPN, or an EoMPLS VC) is not supported.

Cisco Discovery Protocol (CDP) is disabled by default on the 2-Port Gigabit Ethernet SPA interfaces and subinterfaces on the Cisco 7600 SIP-400.

The SDH, E1/E3 modes are not qualified on 1XCHOC12/DS0 SPA on Cisco 7600 SIP-400 in 12.2(33)SRD1 release.

MFR, FRF.12 is not supported on 1XCHOC12/DS0 SPA on Cisco 7600 SIP-400 in 12.2(33)SRD1 release.

VC QoS on VP-PW feature works only with Single Cell Relay and does not work with Packed Cell Relay.

Effective from Cisco IOS Release 15.1(01)S, the Hot-Standby Psuedo Wires (HSPW) feature is supported on SIP400 PW having imposition and disposition on access side for ScEoMPLS, ATM and TDM cross connect.The feature also supports a maximum number of 6000 backup PWs.

SONET OC3 SPA supports a maximum number of 576 PWs.

24T1E1 SPA supports a maximum number of 191 PWs.

Cisco 7600 SIP-600 Restrictions

As of Cisco IOS Release 12.2(18)SXF, the Cisco 7600 SIP-600 has the following restrictions:

The Cisco 7600 SIP-600 is not supported by the Supervisor Engine 32 or the Supervisor Engine 720 with PFC3A.

For more information about the requirements for Policy Feature Cards (PFCs) on the Cisco 7600 series router, refer to the Release Notes for Cisco IOS Release 12.2SX on the Supervisor Engine 720, Supervisor Engine 32, and Supervisor Engine 2 at the following URL:http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html

The Cisco 7600 SIP-600 supports installation of only a single SPA in the first subslot.

Removal of one type of SPA and reinsertion of a different type of SPA during OIR causes a reload of the Cisco 7600 SIP-600.

Q-in-Q (the ability to map a single 802.1Q tag or a random double tag combination into a VPLS instance, a Layer 3 MPLS VPN, or an EoMPLS VC) is not supported.

H-VPLS with MPLS edge requires either an OSM or Cisco 7600 SIP-600 in both the downlink (facing UPE) and uplink (MPLS core).

Output policing is not supported.

The aggregate guaranteed bandwidth configured for all QOS policies applied to a main interface cannot exceed the bandwidth of the link. 1% of the link rate bandwidth is reserved for control packet traffic. The remaining 99% of guaranteed rates are available for QoS configuration. For policies applied to the main interface, an attempt is made to acquire the 1% guaranteed rate from class-default. If control packet bandwidth can not be acquired, then errors are reported in the log file.

On any Cisco 7600 SIP-600 Ethernet port subinterface using VLANs, a unique VLAN ID must be assigned. This VLAN ID cannot be in use by any other interface on the Cisco 7600 series router.

Certain restrictions apply when using the SIP-600 and the IPSec VPN SPA on the same chassis:

The SIP-600 should not be installed in the same chassis with an IPSec VPN SPA when running SXF.

The SIP-600 is not supported in 12.2(33)SRA.

Starting with SRB, the SIP-600 and IPSec VPN SPA can be present in the same chassis. However, SIP-600 subinterfaces cannot be used when VPN crypto-connect mode is configured.

Cisco 7600 SSC-400 Restrictions

As of Cisco IOS Release 12.2(18)SXE2, the Cisco 7600 SSC-400 has the following restrictions:

The Cisco 7600 SSC-400 is only supported by the Supervisor Engine 720 (MSFC3 and PFC3).

For more information about the requirements for Policy Feature Cards (PFCs) on the Cisco 7600 series router, refer to the Release Notes for Cisco IOS Release 12.2SX on the Supervisor Engine 720, Supervisor Engine 32, and Supervisor Engine 2 at the following URL:


http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html

The Cisco 7600 SSC-400 only supports two IPSec VPN SPAs.

As of Cisco IOS Release 12.2(18)SXF, the Cisco 7600 SSC-400 has the following restrictions:

The Cisco 7600 SSC-400 is not supported by the Supervisor Engine 32. The Cisco 7600 SSC-400 is only supported by the Supervisor Engine 720 (MSFC3 and PFC3).

For more information about the requirements for Policy Feature Cards (PFCs) on the Cisco 7600 series router, refer to the Release Notes for Cisco IOS Release 12.2SX on the Supervisor Engine 720, Supervisor Engine 32, and Supervisor Engine 2 at the following URL:


http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html

The Cisco 7600 SSC-400 only supports two IPSec VPN SPAs.

Supported MIBs

The following MIBs are supported in Cisco IOS Release 12.2(18)SXE and later for the Cisco 7600 SIP-200 on a Cisco 7600 series router:

CISCO-ENTITY-ASSET-MIB

CISCO-ENTITY-EXT-MIB

CISCO-ENTITY-FRU-CONTROL-MIB

ENTITY-MIB

OLD-CISCO-CHASSIS-MIB

The following MIBs are supported in Cisco IOS Release 12.2(18)SXE and later for the Cisco 7600 SIP-400 on a Cisco 7600 series router:

ATM-ACCOUNTING-INFORMATION-MIB (RFC 2512)

ATM-MIB (RFC 2515)

ATM-SOFT-PVC-MIB

ATM-TC-MIB

ATM-TRACE-MIB

CISCO-AAL5-MIB

CISCO-ATM-CONN-MIB

CISCO-ATM-RM-MIB

CISCO-ATM TRAFFIC-MIB

CISCO-CLASS-BASED-QOS-MIB

CISCO-ENTITY-ASSET-MIB

CISCO-ENTITY-EXT-MIB

CISCO-ENTITY-FRU-CONTROL-MIB

ENTITY-MIB

IF-MIB

OLD-CISCO-CHASSIS-MIB

SONET MIB (RFC 2558)

The following MIBs are supported in Cisco IOS Release 12.2(18)SXF and later for the Cisco 7600 SIP-600 on a Cisco 7600 series router:

CISCO-ENTITY-ASSET-MIB

CISCO-ENTITY-EXT-MIB

CISCO-ENTITY-FRU-CONTROL-MIB

ENTITY-MIB

OLD-CISCO-CHASSIS-MIB

The following MIBs are supported in Cisco IOS Release 12.2(18)SXE2 and later for the Cisco 7600 SSC-400 on a Cisco 7600 series router:

CISCO-ENTITY-ASSET-MIB

CISCO-ENTITY-EXT-MIB

CISCO-ENTITY-FRU-CONTROL-MIB

ENTITY-MIB

ETHER-MIB

OLD-CISCO-CHASSIS-MIB

For more information about MIB support on a Cisco 7600 series router, refer to the Cisco 7600 Series Internet Router MIB Specifications Guide at the following URL:

http://www.cisco.com/en/US/products/hw/routers/ps368/prod_technical_reference_list.html

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://tools.cisco.com/ITDIT/MIBS/servlet/index

If Cisco MIB Locator does not support the MIB information that you need, you can also obtain a list of supported MIBs and download MIBs from the Cisco MIBs page at the following URL:

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

To access Cisco MIB Locator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:

https://tools.cisco.com/RPF/register/register.do

Displaying the SIP and SSC Hardware Type

To verify the SIP or SSC hardware type that is installed in your Cisco 7600 series router, you can use the show module command. There are other commands on the Cisco 7600 series router that also provide SIP and SSC hardware information, such as the show idprom command and show diagbus command.

Table 3-1 shows the hardware description that appears in the show module and show idprom command output for each type of SIP that is supported on the Cisco 7600 series router.

Table 3-1 SIP Hardware Descriptions in show Commands

SIP
Description in show module and show idprom Commands

Cisco 7600 SIP-200

4-subslot SPA Interface Processor-200 / 7600-SIP-200

Cisco 7600 SIP-400

4-subslot SPA Interface Processor-400 / 7600-SIP-400

Cisco 7600 SIP-600

1-subslot SPA Interface Processor-600 / 7600-SIP-600

Cisco 7600 SSC-400

2-subslot Services SPA Carrier-400 / 7600-SSC-400


Example of the show module Command

The following example shows output from the show module command on the Cisco 7600 series router with a Cisco 7600 SIP-400 installed in slot 13:

Router# show module 13
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
 
   
 13    0  4-subslot SPA Interface Processor-400  7600-SIP-400       JAB0851042X
 
   
Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
 13  00e0.aabb.cc00 to 00e0.aabb.cc3f   0.525 12.2(PP_SPL_ 12.2(PP_SPL_ Ok
 
   
Mod Online Diag Status 
--- -------------------
 13 Pass

Example of the show idprom Command

The following example shows sample output for a Cisco 7600 SIP-200 installed in slot 4 of the router:

Router# show idprom module 4
IDPROM for module #4
  (FRU is '4-subslot SPA Interface Processor-200')
  OEM String = 'Cisco Systems'
  Product Number = '7600-SIP-200'
  Serial Number = 'SAD0738006Y'
  Manufacturing Assembly Number = '73-8272-03'
  Manufacturing Assembly Revision = '03'
  Hardware Revision = 0.333
  Current supplied (+) or consumed (-) = -4.77A
 
   

SIP-200 and SIP-400 Network Clock Distribution

The Cisco 7600 series routers have a distributed clocking system with two 8 KHZ backplane reference clocks that connect to every slot in the backplane to provide an egress (Tx) timing reference for the SPAs.

Starting with Cisco IOS release 12.2(33)SRB,the SIP-200 or SIP-400 can take clock input from various clock sources and distribute the clock to other supported cards by way of the chassis backplane to allow network operators to synchronize the transmit clocks of serial interfaces to a central timing reference. Synchronization to a central timing reference can help eliminate frame slips and associated loss of data on SONET and SDH interfaces.

Both the SIP-200 and the SIP-400 can act as the source that drives the backplane reference clocks by other SIPs. When a SIP-200 or SIP-400 is the source of the clocks, the SIP uses the recovered Rx clock from any one of its SPA's input ports (see Table 3-2 for which SPAs support this functionality). The SIP either derives an 8-KHz [no space] clock that it drives onto one or both backplane signals, or provides its own Stratum 3 clock to the backplane.

Both the SIP-200 and the SIP-400 can also receive backplane clocks for use by their SPAs. When the SIP-200 and the SIP-400 receives backplane clocks, the clocks are dejittered and provided to the SPAs.

Table 3-2 shows reference clock sources. Table 3-3 shows the reference clock sources available for mapping to the backplane. Table 3-4 shows the clocks available to specific line cards.

Table 3-2 Reference Clock Sources

Reference Clock Input for Data Transmission
SIP-200
SIP-400

Local

All supported SONET/Serial SPAs

All supported SONET/Serial SPAs

Line

All supported SONET/Serial SPAs

All supported SONET/Serial SPAs

BITS Input

SPA-8XCHT1/E1

SPA-24CHT1-CE-ATM


Table 3-3 Reference Clock Sources Available for Mapping to Backplane

Clock Source
Line Card
SPA
Clock Derived From

Internal Oscillator

SIP-200

Not applicable

Not applicable

SIP-400

Not applicable

Not applicable

Interface

SIP-200

 

SONET/SDH

SPA-2XOC3-POS, SPA-4XOC3-POS

SPA-2XOC3-ATM, SPA-4XOC3-ATM

SIP-400

SPA-1CHOC3-CE-ATM

SPA-2XOC3-POS, SPA-4XOC3-POS

SPA-1XOC12-POS

SPA-1XOC48-POS

SPA-2XOC3-ATM, SPA-4XOC3-ATM

SPA-1XOC12-ATM

SPA-1XOC-48ATM

   

8X1FE-TX-V2

 

4X1FE-TX-V2

Controller

SIP-200

SPA-8XCHT1/E1

T1/E1

SPA-1XCHSTM1/OC3

STM1/OC3

SPA-2XT3/E3, SPA-4XT3/E3

Cannot provide clock to backplane

   

SPA-2XCT3/DS0,

SPA-4XCT3/DS0

Cannot provide the clock to backplane


Table 3-4 Line Cards Able to Receive Clocks from Backplane

Line Card
SPA
Minimum Interface Level for Clock Source Input

SIP-200

SPA-8XCHT1/E1

Cannot take clock from backplane

SPA-2XT3/E3, SPA-4XT3/E3

Cannot take clock from backplane

SPA-2XCT3/DS0, SPA-4XCT3/DS0

Cannot take clock from backplane

SPA-1XCHSTM1/OC3

STM1/OC3

SPA-2XOC3-POS, SPA-4XOC3-POS

SPA-2XOC3-ATM, SPA-4XOC3-ATM

SIP-400

SPA-24CHT1-CE-ATM

T1/E1

SPA-1CHOC3-CE-ATM

STM1/OC3

SPA-2XOC3-POS, SPA-4XOC3-POS

SPA-1XOC12-POS

STM4/OC12

   

SPA-2XOC3-ATM, SPA-4XOC3-ATM

STM1/OC3

SPA-1XOC12-ATM

STM4/OC12

SPA-1XOC-48ATM

STM16/OC48



Note The default clock for T3 / E3 interfaces for the SPA-1xCHSTM1/OC3 or SPA-1xCHOC12/STM4 are internal.
If you have line configuration on the T3, you must change the clock source back to line, to get the setup back to the old state after upgrade.


For additional information, see BITS Clock Support—Receive and Distribute—CEoP SPA on SIP-400.


Note In SONET or SDH the communication channel for conveying clock quality information is Synchronization Status Message (SSM). To select the best available synchronization source, a clock selection process is performed. Cisco 7600 SIP-200 does not support Quality Levl (QL) enabled clocking mode for the clock selection process. QL enabled clocking mode is supported only on Cisco SIP-400 and ES+ line cards.


For network clocking information for the Cisco 7600 SIP-200, see Network Clocking for the Cisco 7600/SIP 200.