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Release Notes for Cisco ASR 9000 Series Aggregation Services Routers for Cisco IOS XR Software Release 4.0.1

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Release Notes for Cisco ASR 9000 Series Aggregation Services Routers for Cisco IOS XR Software Release 4.0.1

Table Of Contents

Release Notes for Cisco ASR 9000 Series Aggregation Services Routers for Cisco IOS XR Software Release 4.0.1

Contents

Introduction

System Requirements

Feature Set Table

Memory Requirements

RSP Memory Upgrade

RSP Memory Downgrade

Hardware Supported

Software Compatibility

Cisco ASR 9000 Series Right-To-Use (RTU) Licensing

Other Firmware Support

Determining Your Software Version

Features Supported on the Cisco ASR 9000 Series Router

New Features in Cisco IOS XR Software Release 4.0.1

Software Features Introduced in Cisco IOS XR Software Release 4.0.1 for the Cisco ASR 9000 Series Router

Hardware Features Introduced in Cisco IOS XR Software Release 4.0.1 for the Cisco ASR 9000 Series Router

New Features in Cisco IOS XR Software Release 4.0.0

New Software Features Supported on all Platforms

Cisco ASR 9000 Series-Specific Software Features

Cisco ASR 9000 Series Hardware Features Introduced in Cisco IOS XR Software Release 4.0.0

Features Introduced in Cisco IOS XR Software Release 3.9.2

Features Introduced in Cisco IOS XR Software Release 3.9.1

Features Introduced in Cisco IOS XR Software Release 3.9.0

Features Introduced in Cisco IOS XR Software Release 3.7.3

Features Introduced in Cisco IOS XR Software Release 3.7.2

Important Notes

Caveats

Open Cisco IOS XR Software Release 4.0.1 Caveats

Caveats Specific to the Cisco ASR 9000 Series Router

Resolved Cisco IOS XR Software PSIRT-Related Caveats

Upgrading Cisco IOS XR Software

Troubleshooting

Resolving Upgrade File Issues

Obtaining Documentation and Submitting a Service Request


Release Notes for Cisco ASR 9000 Series Aggregation Services Routers for Cisco IOS XR Software Release 4.0.1


April 22, 2013

Cisco ASR 9000 Series Router Software Release 4.0.1

Text Part Number OL-24065-03


Note For information on Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1, see the "New Features in Cisco IOS XR Software Release 4.0.1" section.


These release notes describe the features provided on the Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1 and are updated as needed.

For a list of software caveats that apply to the Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1, see the "Caveats" section. The caveats are updated for every release and are described on the World Wide Web at www.cisco.com.

Contents

These release notes contain the following sections:

Introduction

System Requirements

Determining Your Software Version

Features Supported on the Cisco ASR 9000 Series Router

Important Notes

Caveats

Troubleshooting

Obtaining Documentation and Submitting a Service Request

Introduction

Cisco IOS XR software is a distributed operating system designed for continuous system operation combined with service flexibility and high performance.

Cisco IOS XR software running on the Cisco ASR 9000 Series Router provides the following features and benefits:

IP and RoutingSupports a wide range of IPv4 and IPv6 services and routing protocols; such as Border Gateway Protocol (BGP), Routing Information Protocol (RIPv2), Intermediate System-to-Intermediate System (IS-IS), Open Shortest Path First (OSPF), IP Multicast, Routing Policy Language (RPL), Hot Standby Router Protocol (HSRP), and Virtual Router Redundancy Protocol features (VRRP).

Ethernet Services—The Cisco IOS XR software Release 4.0.1 running on the Cisco ASR 9000 Series Router supports the following Ethernet features:

Ethernet Virtual Connections (EVCs)

Flexible VLAN classification

Flexible VLAN translation

IEEE bridging

IEEE 802.1s Multiple Spanning Tree (MST)

MST Access Gateway

L2VPN

Virtual Private LAN Services (VPLS), Hierarchical VPLS (H-VPLS), Virtual Private Wire Service (VPWS), Ethernet over MPLS (EoMPLS), pseudo wire redundancy, and multi segment pseudo wire stitching

BGP Prefix Independent ConvergenceProvides the ability to converge BGP routes within sub seconds instead of multiple seconds. The Forwarding Information Base (FIB) is updated, independent of a prefix, to converge multiple 100K BGP routes with the occurrence of a single failure. This convergence is applicable to both core and edge failures and with or with out MPLS. This fast convergence innovation is unique to Cisco IOS XR software.

Multiprotocol Label Switching (MPLS)Supports MPLS protocols, including Traffic Engineering (TE) [including TE-FRR and TE Preferred Path], Resource Reservation Protocol (RSVP), Label Distribution Protocol (LDP), Targeted LDP (T-LDP), Differentiated Services (DiffServ)-aware traffic engineering, and Layer 3 Virtual Private Network (L3VPN).

Multicast—Provides comprehensive IP Multicast software including Source Specific Multicast (SSM) and Protocol Independent Multicast (PIM) in Sparse Mode only. The Cisco ASR 9000 Series Router also supports Auto-Rendezvous Point (AutoRP), Multiprotocol BGP (MBGP), Multicast Source Discovery Protocol (MSDP), Internet Group Management Protocol Versions 2 and 3 (IGMPv2 and v3), and IGMPv2 and v3 snooping.

Quality of Service (QoS)—Supports QoS mechanisms including policing, marking, queuing, random and hard traffic dropping, and shaping. Additionally, Cisco IOS XR supports modular QoS command-line interface (MQC). MQC is used to configure various QoS features on various Cisco platforms, including the Cisco ASR 9000 Series Router. Supports the following:

Class-Based Weighted Fair Queuing (CBWFQ)

Weighted Random Early Detection (WRED)

Priority Queuing with propagation

2-rate 3-color (2R3C) Policing

Modular QoS CLI (MQC)

4-level Hierarchical-QoS

Shared Policy Instances

Manageability—Provides industry-standard management interfaces including modular command-line interface (CLI), Simple Network Management Protocol (SNMP), and native Extensible Markup Language (XML) interfaces. Includes a comprehensive set of Syslog messaging.

Security—Provides comprehensive network security features including Layer 2 and Layer 3access control lists (ACLs); routing authentications; Authentication, Authorization, and Accounting (AAA)/Terminal Access Controller Access Control System (TACACS+); Secure Shell (SSH); Management Plane Protection (MPP) for control plan security; and Simple Network Management Protocol version3 (SNMPv3). Control plane protections integrated into line card Application-Specific Integrated Circuits (ASICs) include Generalized TTL Security Mechanism (GTSM), RFC 3682, and Dynamic Control Plane Protection (DCPP).

Availability—Supports rich availability features such as fault containment, fault tolerance, fast switchover, link aggregation, nonstop routing for ISIS, LDP and OSPF, and nonstop forwarding (NSF).

Enhanced core competencies:

IP fast convergence with Fast Reroute (FRR) support for Intermediate System-to-Intermediate System (IS-IS)

Path Computation Element (PCE) capability for traffic engineering

For more information about new features provided on the Cisco ASR 9000 Series Router platform for Cisco IOS XR Software Release 4.0.1, see the "New Features in Cisco IOS XR Software Release 4.0.1" section in this document.

System Requirements

This section describes the system requirements for Cisco ASR 9000 Series Router Software Release 4.0.1. The system requirements include the following information:

Feature Set Table

Memory Requirements

Hardware Supported

Software Compatibility

Other Firmware Support

Feature Set Table

The Cisco ASR 9000 Series Router software is packaged in feature sets (also called software images). Each feature set contains a specific set of Cisco ASR 9000 Series Router Software Release 4.0.1 features.

Table 1 lists the Cisco ASR 9000 Series Router software feature set matrix (PIE files) and associated filenames available for the Release 4.0.1 supported on the Cisco ASR 9000 Series Router.

Table 1 Cisco ASR 9000 Series Router Supported Feature Sets
(Cisco IOS XR Software Release 4.0.1 PIE Files) 

Feature Set
Filename
Description
Composite Package

Cisco IOS XR IP Unicast Routing Core Bundle

asr9k-mini-p.pie-4.0.1

Contains the required core packages, including OS, Admin, Base, Forwarding, Forwarding Processor Card 40G, FPD, Routing, SNMP Agent, Diagnostic Utilities, and Alarm Correlation.

Cisco IOS XR IP Unicast Routing Core Bundle

asr9k-mini-p.vm-4.0.1

Contains the required core packages including OS, Admin, Base, Forwarding, Forwarding Processor Card 40G, FPD, Routing, SNMP Agent, Diagnostic Utilities, and Alarm Correlation.

Optional Individual Packages 1

Cisco IOS XR Manageability Package

asr9k-mgbl.pie-4.0.1

CORBA2 agent, XML3 Parser, and HTTP server packages. This PIE also contains some SNMP MIB infrastructure. Certain MIBs won't work if this PIE is not installed.

Cisco IOS XR MPLS Package

asr9k-mpls.pie-4.0.1

MPLS-TE,4 LDP,5 MPLS Forwarding, MPLS OAM,6 LMP,7 OUNI,8 RSVP,9 and Layer-3 VPN.

Cisco IOS XR Multicast Package

asr9k-mcast.pie-4.0.1

Multicast Routing Protocols (PIM, MSDP,10 IGMP,11 Auto-RP), Tools (SAP, MTrace), and Infrastructure (MRIB,12 MURIB13 , MFWD14 ), and BIDIR-PIM.15

Cisco IOS XR Security Package

asr9k-k9sec.pie-4.0.1

Support for Encryption, Decryption, SSH,16 and SSL17

Cisco IOS XR Advanced Video Package

asr9k-video-p.pie-4.0.1

Firmware for the advanced video feature for Cisco ASR 9000 Series Router chassis.

Cisco IOS XR Optics Package

asr9k-optic.pie-4.0.1

Firmware for the optics feature for Cisco ASR 9000 Series Router chassis.

Cisco IOS XR Upgrade Package

asr9k-upgrade-p.pie-4.0.1

Firmware for the upgrade feature for Cisco ASR 9000 Series Router chassis.

Cisco IOS XR Documentation Package

asr9k-doc.pie-4.0.1

.man pages for Cisco IOS XR software on the Cisco ASR 9000 Series Router chassis.

1 Packages are installed individually

2 Common Object Request Broker Architecture

3 Extensible Markup Language

4 MPLS Traffic Engineering

5 Label Distribution Protocol

6 Operations, Administration, and Maintenance

7 Link Manager Protocol

8 Optical User Network Interface

9 Resource Reservation Protocol

10 Multicast Source Discovery Protocol

11 Internet Group Management Protocol

12 Multicast Routing Information Base

13 Multicast-Unicast RIB

14 Multicast forwarding

15 Bidirectional Protocol Independent Multicast

16 Secure Shell

17 Secure Socket Layer


Table 2 lists the Cisco ASR 9000 Series Router TAR files.

Table 2 Cisco ASR 9000 Series Router Supported Feature Sets
(Cisco IOS XR Software Release 4.0.1 TAR Files) 

Feature Set
Filename
Description

Cisco IOS XR IP/MPLS Core Software

asr9k-iosxr-4.0.1.tar

Cisco IOS XR IP Unicast Routing Core Bundle

Cisco IOS XR Manageability Package

Cisco IOS XR MPLS Package

Cisco IOS XR Multicast Package

Cisco IOS XR FPD Package

Cisco IOS XR Diagnostic Package

Cisco IOS XR Advanced Video Package

Cisco IOS XR Optics Package

Cisco IOS XR Upgrade Package

Cisco IOS XR Documentation Package

Cisco IOS XR IP/MPLS Core Software 3DES

asr9k-iosxr-k9-4.0.1.tar

Cisco IOS XR IP Unicast Routing Core Bundle

Cisco IOS XR Manageability Package

Cisco IOS XR MPLS Package

Cisco IOS XR Multicast Package

Cisco IOS XR Security Package

Cisco IOS XR FPD Package

Cisco IOS XR Diagnostic Package

Cisco IOS XR Advanced Video Package

Cisco IOS XR Optics Package

Cisco IOS XR Upgrade Package

Cisco IOS XR Documentation Package


Memory Requirements


Caution If you remove the media in which the software image or configuration is stored, the router may become unstable and fail.

The minimum memory requirements for Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1 consist of the following:

minimum 4-GB memory on the route switch processors (RSPs) [maximum is 8-GB]

minimum 2-GB compact flash on route switch processors (RSPs)

minimum 4-GB memory on the line cards (LCs)

These minimum memory requirements are met with the base board design.

RSP Memory Upgrade

This section describes the process to upgrade the Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1 from a small memory model (ASR9k-RSP-4G) RSP card to a large memory model (ASR9k-RSP-8G) RSP card.

The upgrade sequence is as follows:


Step 1 Remove the standby small memory (ASR9k-RSP-4G) RSP card.

Step 2 Insert the large memory (ASR9k-RSP-8G) RSP card.

Step 3 Boot up the large memory (ASR9k-RSP-8G) RSP card so that it comes up as standby.

Step 4 Failover from the active small memory (ASR9k-RSP-4G) RSP card to the standby large memory (ASR9k-RSP-8G) RSP card.

Step 5 Remove the standby small memory (ASR9k-RSP-4G) RSP card.

Step 6 Insert the second large memory (ASR9k-RSP-8G) RSP card. Boot up this second large memory (ASR9k-RSP-8G) RSP card so that it comes up as standby.


RSP Memory Downgrade

This section describes the process to downgrade the Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1 from a large memory model (ASR9k-RSP-8G) RSP card to a small memory model (ASR9k-RSP-4G) RSP card.


Caution Before attempting an RSP memory downgrade, measure the memory consumption of the current system configuration using the large memory model (ASR9k-RSP-8G) RSP card. You need to ensure that the Cisco ASR 9000 Series Router running Cisco IOS XR Software Release 4.0.1 will still be able to run the system configuration using the small memory model (ASR9k-RSP-4G) RSP card.

The RSP memory downgrade sequence is as follows:


Step 1 Verify that the memory consumption on the active large memory model (ASR9k-RSP-8G) RSP card will fit within the memory constraints of the small memory model (ASR9k-RSP-4G) RSP card.

Step 2 Remove the standby large memory model (ASR9k-RSP-8G) RSP card.

Step 3 Insert the small memory model (ASR9k-RSP-4G) RSP card. The system will not boot up the small memory model (ASR9k-RSP-4G) RSP card by default. Send user command to boot up the small memory model (ASR9k-RSP-4G) RSP card as standby.

Step 4 Failover from the active large memory model (ASR9k-RSP-8G) RSP card to the standby small memory model (ASR9k-RSP-4G) RSP card.

Step 5 Remove the standby large memory model (ASR9k-RSP-8G) RSP card.

Step 6 Insert the small memory model (ASR9k-RSP-4G) RSP card. Boot up this second small memory model (ASR9k-RSP-4G) RSP card as standby.


Hardware Supported

Cisco IOS XR Software Release 4.0.1 supports Cisco ASR 9000 Series Routers. All hardware features are supported on Cisco IOS XR software, subject to the memory requirements specified in the "Memory Requirements" section.

Table 3 lists the supported hardware components on the Cisco ASR 9000 Series Router and the minimum required software versions. For more information, see the "Other Firmware Support" section.

Table 3 Cisco ASR 9000 Series Router Supported Hardware and Minimum Software Requirements 

Component
Part Number
Support from Version
Cisco ASR 9000 Series Router 6-Slot

Cisco ASR 9000 Series 6-Slot System

ASR-9006

Release 3.7.2

Cisco ASR 9000 Series 6-Slot Fan Tray

ASR-9006-FAN

Release 3.7.2

Cisco ASR 9000 Series 6-Slot Door Kit

ASR-9006-DOOR

Release 3.7.2

Cisco ASR 9000 Series 6-Slot AC Chassis

ASR-9006-AC

Release 3.7.2

Cisco ASR 9000 Series 6-Slot DC Chassis

ASR-9006-DC

Release 3.7.2

Cisco ASR 9000 Series Router 6-Slot Air

Cisco ASR 9000 Series 6-Slot Air Filter

ASR-9006-FILTER

Release 3.7.2

 
Cisco ASR 9000 Series Router 10-Slot

Cisco ASR 9000 Series 10-Slot System

ASR-9010

Release 3.7.2

Cisco ASR 9000 Series 10-Slot Fan Tray

ASR-9010-FAN

Release 3.7.2

Cisco ASR 9000 Series 10-Slot Door Kit

ASR-9010-DOOR

Release 3.7.2

Cisco ASR 9000 Series 10-Slot AC Chassis

ASR-9010-AC

Release 3.7.2

Cisco ASR 9000 Series 10-Slot DC Chassis

ASR-9010-DC

Release 3.7.2

Cisco ASR 9000 Series 2 Post Mounting Kit

ASR-9010-2P-KIT

Release 3.7.2

Cisco ASR 9000 Series 4 Post Mounting Kit

ASR-9010-4P-KIT

Release 3.7.2

 
Cisco ASR 9000 Series Router 10-Slot Air

Cisco ASR 9000 Series 10-Slot Air Filter

ASR-9010-FILTER

Release 3.7.2

Cisco ASR 9000 Series 10-Slot External Exhaust Air Shaper

ASR-9010-AIRSHPR

Release 3.7.2

Cisco ASR 9000 Series 10-Slot Air Inlet Grill

ASR-9010-GRL

Release 3.7.2

Cisco ASR 9000 Series Router Power

Cisco ASR 9000 Series 1.5kW DC Power Module

A9K-1.5KW-DC

Release 3.7.2

Cisco ASR 9000 Series 2kW DC Power Module

A9K-2KW-DC

Release 3.7.2

Cisco ASR 9000 Series 3kW AC Power Module

A9K-3KW-AC

Release 3.7.2

Cisco ASR 9000 Series Router Line Cards

Cisco ASR 9000 Series 2-Port Ten Gigabit Ethernet +
Cisco ASR 9000 Series 20-Port Gigabit Ethernet, Medium Queue

A9K-2T20GE-B

Release 3.9.0

Cisco ASR 9000 Series 2-Port Ten Gigabit Ethernet +
Cisco ASR 9000 Series 20-Port Gigabit Ethernet, High Queue

A9K-2T20GE-E

Release 3.9.0

Cisco ASR 9000 Series 4-Port Ten Gigabit Ethernet, Medium Queue

A9K-4T-B

Release 3.7.2

Cisco ASR 9000 Series 4-Port Ten Gigabit Ethernet Extended Line Card, High Queue

A9K-4T-E

Release 3.7.2

Cisco ASR 9000 Series 4-Port Ten Gigabit Ethernet, Low Queue

A9K-4T-L

Release 3.9.0

Cisco ASR 9000 Series 8-Port Ten Gigabit Ethernet, 80G Line Rate Extended Line Card, Medium Queue

A9K-8T-B

Release 4.0.1

Cisco ASR 9000 Series 8-Port Ten Gigabit Ethernet, 80G Line Rate Extended Line Card, High Queue

A9K-8T-E

Release 3.9.0

Cisco ASR 9000 Series 8-Port Ten Gigabit Ethernet, 80G Line Rate, Low Queue

A9K-8T-L

Release 3.9.0

Cisco ASR 9000 Series 8-Port Ten Gigabit Ethernet, Medium Queue

A9K-8T/4-B

Release 3.7.2

Cisco ASR 9000 Series 8-Port TenGE DX Extended Line Card, High Queue

A9K-8T/4-E

Release 3.7.2

Cisco ASR 9000 Series 8-Port Ten Gigabit Ethernet, Low Queue

A9K-8T/4-L

Release 3.9.0

Cisco ASR 9000 Series 16-Port Ten Gigabit Ethernet, Medium Queue

A9K-4T-B

Release 4.0.1

Cisco ASR 9000 Series 40-Port Gigabit Ethernet, Medium Queue

A9K-40GE-B

Release 3.7.2

Cisco ASR 9000 Series 40-Port Gigabit Ethernet Extended Line Card, High Queue

A9K-40GE-E

Release 3.7.2

Cisco ASR 9000 Series 40-Port Gigabit Ethernet, Low Queue

A9K-40GE-L

Release 3.9.0

Cisco ASR 9000 Series Line Card Filler

A9K-LC-FILR

Release 3.7.2

Cisco ASR 9000 Series Router Processor Cards

Cisco ASR 9000 Series Route Switch Processor, 4G Memory

A9K-RSP-4G

Release 3.7.2

Cisco ASR 9000 Series Route Switch Processor, 8G Memory

A9K-RSP-8G

Release 4.0.1

Cisco ASR 9000 Series Route Switch Processor Filler

ASR-9000-RSP-FILR

Release 3.7.2

Cisco ASR 9000 Series SIP and SPA Cards

Cisco ASR 9000 SIP-700 SPA interface processor

A9K-SIP-700

Release 3.9.0

2-Port Channelized OC-12/DS0 SPA

SPA-2XCHOC12/DS0

Release 3.9.0

1-Port Channelized OC48/STM16 DS3 SPA

SPA-1XCHOC48/DS3

Release 4.0.1

2-Port OC-48/STM16 SPA

SPA-2XOC48POS/RPR

Release 4.0.1

8-Port OC12/STM4 SPA

SPA-8XOC12-POS

Release 4.0.1

1-Port OC-192/STM-64 POS/RPR SPA

SPA-OC192POS-XFP

Release 4.0.1

4-Port Clear Channel T3/E3 SPA

SPA-4XT3E3

Release 4.0.1

2-Port Clear Channel T3/E3 SPA

SPA-2XT3E3

Release 4.0.1

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

SPA-1XCHSTM1/OC3

Release 4.0.1

4-Port OC-3/STM-1 POS SPA

SPA-4XOC3

Release 4.0.1

8-Port OC-3/STM-1 POS SPA

SPA-8XOC3

Release 4.0.1


Software Compatibility

Cisco IOS XR Software Release 4.0.1 is compatible with the following Cisco ASR 9000 Series Router systems:

Cisco ASR 9000 Series Router 6-Slot Line Card Chassis

Cisco ASR 9000 Series Router 10-Slot Line Card Chassis

Table 4 lists the supported software licenses on the Cisco ASR 9000 Series Router and the appropriate part numbers.

Table 4 Cisco ASR 9000 Series Router Supported Software Licenses 

Software License
Part Number

Cisco ASR 9000 Series iVRF License

A9K-IVRF-LIC

Cisco ASR 9000 Series Per Chassis Advanced Video License

A9K-ADV-VIDEO-LIC

Cisco ASR 9000 Series Per Line Card Advanced Optical License

A9K-ADV-OPTIC-LIC

Cisco ASR 9000 Series L3VPN License, Medium Queue and Low Queue Line Cards

A9K-AIP-LIC-B

Cisco ASR 9000 Series L3VPN License, High Queue Line Cards

A9K-AIP-LIC-E


Note that error messages may display if features run without the appropriate licenses installed. For example, when creating or configuring VRF, if the A9K-IVRF-LIC license is not installed before creating a VRF, the following message displays:

 
   
RP/0/RSP0/CPU0:PE1-AS1#LC/0/0/CPU0:Dec 15 17:57:53.653 : rsi_agent[247]: 
%LICENSE-ASR9K_LICENSE-2-INFRA_VRF_NEEDED : 5 VRF(s) are configured without license 
A9K-iVRF-LIC in violation of the Software Right To Use Agreement. This feature may be 
disabled by the system without the appropriate license. Contact Cisco to purchase the 
license immediately to avoid potential service interruption.  
 
   

For Cisco license support, please contact your Cisco Sales Representative or Customer Service at 800- 553-NETS (6387) or 408-526-4000. For questions on the program other than ordering, please send e-mail to: cwm-license@cisco.com.

Cisco ASR 9000 Series Right-To-Use (RTU) Licensing

Here are on-line locations of the Cisco ASR 9000 Series Right-To-Use (RTU) licensing docs:

http://www.cisco.com/en/US/docs/routers/asr9000/hardware/Prodlicense/A9k-AIP-LIC-B.html

http://www.cisco.com/en/US/docs/routers/asr9000/hardware/Prodlicense/A9k-AIP-LIC-E.html


Note Layer 3 VPNs are only to be used after you have purchased a license. Cisco will enforce the RTU of L3VPNs in follow on releases. You should contact Cisco, or check the release notes for the follow on release before upgrading for directions on how to install the license as part of the upgrade - otherwise the L3VPN feature may be affected.


The activation of VRF capability requires the use of the appropriate per line card license (A9K-IVRF-LIC / A9K-AIP-LIC-B / A9K-AIP-LIC-E). Please contact your sales representative for more details.

Other Firmware Support

The Cisco ASR 9000 Series Router supports the following firmware code:

The minimum ROMMON version required for this release is 1.05 for the following line cards:

A9K-40GE-B

A9K-40GE-E

A9K-40GE-L

A9K-8T/4-B

A9K-8T/4-E

A9K-8T/4-L

A9K-4T-B

A9K-4T-E

A9K-4T-L

A9K-2T20GE-B

A9K-2T20GE-E

A9K-2T20GE-L

The minimum ROMMON version required for this release is 1.03 for the following line cards:

A9K-8T-B

A9K-8T-E

A9K-8T-L

A9K-16T/8-B

The minimum ROMMON version required for this release is 1.05 for RSPs.

The minimum CPUCNTRL version required for this release is line card-specific. Use the show fpd package command to check the firmware needed.


Note For more information about CPU controller bits, see the Managing the Router Hardware section in the Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide.



Note In upgrading from Release 3.7.3 or earlier releases, you may be expected to do a one-time FPD upgrade for any firmware images that may have changed since the last release. Refer to the documents at http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html for upgrade instructions.


Check the firmware needed by running the show fpd package command in admin mode.

RP/0/RSP0/CPU0:PE44_ASR-9010(admin)#show fpd package
Thu Sep 09 11:27:15.963 DST    
 
   
===================================== ==========================================
                                      Existing Field Programmable Devices
                                      ==========================================
                                        HW                       Current SW Upg/
Location     Card Type                Version Type Subtype Inst   Version   Dng?
============ ======================== ======= ==== ======= ==== =========== ====
0/RSP0/CPU0  A9K-RSP-8G                 1.0   lc   fpga3   0       1.18     No 
                                              lc   fpga1   0       1.05     No 
                                              lc   fpga2   0       1.15     No 
                                              lc   cbc     0       1.02     No 
                                              lc   fpga4   0       3.08     No 
                                              lc   hsbi    0       4.00     No 
                                              lc   rommon  0       1.05     No 
--------------------------------------------------------------------------------
0/RSP0/CPU0  ASR-9010-FAN               1.0   lc   cbc     1       4.00     No 
--------------------------------------------------------------------------------
0/RSP0/CPU0  ASR-9010-FAN               1.0   lc   cbc     2       4.00     No 
--------------------------------------------------------------------------------
0/RSP1/CPU0  A9K-RSP-4G                 1.0   lc   fpga3   0       1.18     No 
                                              lc   fpga1   0       1.05     No 
                                              lc   fpga2   0       1.15     No 
                                              lc   cbc     0       1.02     No 
                                              lc   fpga4   0       3.08     No 
                                              lc   hsbi    0       4.00     No 
                                              lc   rommon  0       1.05     No 
--------------------------------------------------------------------------------
0/0/CPU0     A9K-40GE-E                 1.0   lc   fpga1   0       0.43     No 
                                              lc   fpga2   0       0.10     No 
                                              lc   cbc     0       2.02     No 
                                              lc   cpld1   0       0.19     No 
                                              lc   rommon  0       1.05     No 
--------------------------------------------------------------------------------
0/0/CPU0     A9K-40GE-E                 1.0   lc   fpga1   1       0.43     No 
--------------------------------------------------------------------------------
0/2/CPU0     A9K-8T-L                   1.0   lc   fpga1   0       1.00     No 
                                              lc   fpga2   0       0.11     No 
                                              lc   cbc     0       6.02     No 
                                              lc   cpld2   0       0.08     No 
                                              lc   cpld1   0       1.00     No 
                                              lc   cpld3   0       0.03     No 
                                              lc   cpld4   0       1.00     No 
                                              lc   rommon  0       1.03     No 
--------------------------------------------------------------------------------
0/2/CPU0     A9K-8T-L                   1.0   lc   fpga1   1       1.00     No 
--------------------------------------------------------------------------------
0/5/CPU0     A9K-SIP-700                1.0   lc   fpga1   0       0.22     No 
                                              lc   cbc     0       3.05     No 
                                              lc   rommon  0       1.03     No 
                                              lc   fpga2   0       5.14     No 
                                              lc   cpld1   0       0.15     No 
--------------------------------------------------------------------------------
0/5/0        SPA-8XOC12-POS             1.0   spa  fpga1   0       1.00     No 
--------------------------------------------------------------------------------
0/5/1        SPA-2XCHOC12/DS0           1.0   spa  rommon  1       2.02     No 
                                              spa  fpga1   1       1.36     No 
                                              spa  fpga2   1       1.00     No 
--------------------------------------------------------------------------------
0/5/2        SPA-2XOC48POS/RPR          1.0   spa  fpga1   2       1.00     No 
--------------------------------------------------------------------------------
0/6/CPU0     A9K-8T/4-B                 1.0   lc   fpga1   0       0.43     No 
                                              lc   fpga2   0       0.10     No 
                                              lc   cbc     0       2.02     No 
                                              lc   cpld2   0       0.08     No 
                                              lc   cpld1   0       0.19     No 
                                              lc   cpld3   0       0.03     No 
                                              lc   rommon  0       1.05     No 
                                              lc   fpga3   0      14.44     No 
--------------------------------------------------------------------------------
0/6/CPU0     A9K-8T/4-B                 1.0   lc   fpga1   1       0.43     No 
--------------------------------------------------------------------------------

Determining Your Software Version

To determine the version of Cisco IOS XR software running on your router, log in to the router and enter the show version command:


Step 1 Establish a Telnet session with the router.

Step 2 Enter the show version command:

RP/0/RSP0/CPU0:router#show version
Fri Dec 17 11:47:52.176 PST
 
   
Cisco IOS XR Software, Version 4.0.1[Default]
Copyright (c) 2010 by Cisco Systems, Inc.
 
   
ROM: System Bootstrap, Version 1.05(20101118:025914) [ASR9K ROMMON],  
 
   
AC2 uptime is 23 hours, 47 minutes
System image file is "bootflash:disk0/asr9k-os-mbi-4.0.1/mbiasr9k-rp.vm"
 
   
cisco ASR9K Series (MPC8641D) processor with 8388608K bytes of memory.
MPC8641D processor at 1333MHz, Revision 2.2
ASR-9010 AC Chassis
 
   
4 Management Ethernet
8 WANPHY controller(s)
16 DWDM controller(s)
16 TenGigE
40 GigabitEthernet
12 SONET/SDH
10 Packet over SONET/SDH
1 MgmtMultilink
1 Serial network interface(s)
219k bytes of non-volatile configuration memory.
975M bytes of compact flash card.
33994M bytes of hard disk.
1605616k bytes of disk0: (Sector size 512 bytes).
1605616k bytes of disk1: (Sector size 512 bytes).
 
   
Configuration register on node 0/RSP0/CPU0 is 0x102
Boot device on node 0/RSP0/CPU0 is disk0:
Package active on node 0/RSP0/CPU0:
asr9k-optics-supp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-optics-supp-4.0.1
    Built on Wed Dec 15 01:19:46 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-fwding, V 4.0.1[00], Cisco Systems, at disk0:asr9k-fwding-4.0.1
    Built on Wed Dec 15 01:12:35 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-cpp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-cpp-4.0.1
    Built on Wed Dec 15 01:13:27 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-scfclient, V 4.0.1[00], Cisco Systems, at disk0:asr9k-scfclient-4.0.1
    Built on Wed Dec 15 01:13:26 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-security, V 4.0.1[00], Cisco Systems, at disk0:iosxr-security-4.0.1
    Built on Wed Dec 15 01:18:59 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-video-adv, V 4.0.1[00], Cisco Systems, at disk0:iosxr-video-adv-4.0.1
    Built on Wed Dec 15 01:19:20 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-mpls, V 4.0.1[00], Cisco Systems, at disk0:iosxr-mpls-4.0.1
    Built on Wed Dec 15 01:18:03 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-mgbl, V 4.0.1[00], Cisco Systems, at disk0:iosxr-mgbl-4.0.1
    Built on Wed Dec 15 01:18:43 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-mcast, V 4.0.1[00], Cisco Systems, at disk0:iosxr-mcast-4.0.1
    Built on Wed Dec 15 01:18:21 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-routing, V 4.0.1[00], Cisco Systems, at disk0:iosxr-routing-4.0.1
    Built on Wed Dec 15 01:08:01 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-infra, V 4.0.1[00], Cisco Systems, at disk0:iosxr-infra-4.0.1
    Built on Wed Dec 15 01:03:02 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-fwding, V 4.0.1[00], Cisco Systems, at disk0:iosxr-fwding-4.0.1
    Built on Wed Dec 15 01:05:09 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
iosxr-diags, V 4.0.1[00], Cisco Systems, at disk0:iosxr-diags-4.0.1
    Built on Wed Dec 15 01:08:22 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-adv-video-supp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-adv-video-supp-4.0.1
    Built on Wed Dec 15 01:19:25 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-fpd, V 4.0.1[00], Cisco Systems, at disk0:asr9k-fpd-4.0.1
    Built on Wed Dec 15 01:14:10 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-diags-supp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-diags-supp-4.0.1
    Built on Wed Dec 15 01:13:24 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-k9sec-supp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-k9sec-supp-4.0.1
    Built on Wed Dec 15 01:19:07 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-mgbl-supp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-mgbl-supp-4.0.1
    Built on Wed Dec 15 01:18:54 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-mcast-supp, V 4.0.1[00], Cisco Systems, at disk0:asr9k-mcast-supp-4.0.1
    Built on Wed Dec 15 01:18:39 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-base, V 4.0.1[00], Cisco Systems, at disk0:asr9k-base-4.0.1
    Built on Wed Dec 15 01:11:56 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
asr9k-os-mbi, V 4.0.1[00], Cisco Systems, at disk0:asr9k-os-mbi-4.0.1
    Built on Wed Dec 15 01:11:50 PST 2010
    By sjc-lds-524 in /auto/srcarchive4/production/4.0.1/asr9k/workspace for pie
 
   
Configuration register on node 0/RSP1/CPU0 is 0x102
 
   

Features Supported on the Cisco ASR 9000 Series Router

The following sections describe the features supported on the Cisco ASR 9000 Series Router platform:

New Features in Cisco IOS XR Software Release 4.0.1

New Features in Cisco IOS XR Software Release 4.0.0

Features Introduced in Cisco IOS XR Software Release 3.9.2

Features Introduced in Cisco IOS XR Software Release 3.9.1

Features Introduced in Cisco IOS XR Software Release 3.9.0

Features Introduced in Cisco IOS XR Software Release 3.7.3

Features Introduced in Cisco IOS XR Software Release 3.7.2


Note The Cisco ASR 9000 Series Router platform is not supported on Cisco IOS XR Software Release 3.8.0.


New Features in Cisco IOS XR Software Release 4.0.1

The following sections contain information on new features and enhancements in Cisco IOS XR Software Release 4.0.1:

Software Features Introduced in Cisco IOS XR Software Release 4.0.1 for the Cisco ASR 9000 Series Router

Hardware Features Introduced in Cisco IOS XR Software Release 4.0.1 for the Cisco ASR 9000 Series Router

Software Features Introduced in Cisco IOS XR Software Release 4.0.1 for the Cisco ASR 9000 Series Router

The following new software features were introduced in Cisco IOS XR Software Release 4.0.1 on the Cisco ASR 9000 Series Router platform:

IP Fast Reroute (IPFRR)—The following commands are introduced on the Cisco IOS XR Software Release 4.0.1:

ipfrr lfa

ipfrr lfa exclude interface

The following commands are modified to support this feature:

fast-reroute per-link

fast-reroute per-link exclude interface

For more information about these commands, refer to the Cisco IOS XR Routing Command Reference documentation.

CFM on MC-LAG—This feature adds Cisco ASR 9000 Series Router support for Operations, Administration, and Maintenance operations defined by IEEE 802.1ag Connectivity Fault Management (CFM) on Multi-Chassis Link Aggregation Group (MC-LAG) for deployments where the link bundle (LAG) terminates on separate chassis.

Downstream on Demand for BGP Labels—This feature adds support for the downstream-on-demand mode where the label is not advertised to a peer unless the peer explicitly requests it. At the same time, because the peer does not automatically advertise labels, a label request must be sent whenever the next-hop points to a peer to which no remote label has been assigned.

For more information about this feature, refer to the Downstream on Demand section of the Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide.

Any Transport over MPLS (AToM): HDLC over MPLS (HDLCoMPLS)—The attachment circuit (AC) is a main interface configured with HDLC encapsulation. Packets to or from the AC are transported using an AToM pseudowire (PW) of VC type 0x6 to or from the other provider edge (PE) router over te MPLS core network.

With HDLC over MPLS, the entire HDLC packet is transported. The ingress PE router removes only the HDLC flags and FCS bits.

Any Transport over MPLS (AToM): PPP over MPLS (PPPoMPLS)—The AC is a main interface configured with PPP encapsulation. Packets to or from the AC are transported through an AToM PW of VC type 0x7 to or from the other PE routers over the MPLS core network.

With PPP over MPLS, the ingress PE router removes the flags, address, control field, and the FCS bits.

Load Balancing on Link Bundles—The Cisco ASR 9000 Series Router supports load balancing for all links in a bundle using Layer 2, Layer 3, and Layer 4 routing information. For more information about load balancing on link bundles, see the Configuring Link Bundling on the Cisco ASR 9000 Series Router section of the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide.

Dynamic Load Balancing for LAG—Beginning in Cisco IOS XR Release 4.0.1, the Cisco ASR 9000 Series Router supports a method of dynamic load balancing among link aggregation (LAG) members. With dynamic load balancing, the hash algorithms for link selection include up to a maximum of 64 links, and are based on the current number of active members in the bundle.

Layer 3 Load Balancing on Link Bundles—Layer 3 load balancing for link bundles is done when outgoing interfaces are either bundles or bundle subinterfaces. 5-tuple hashing is used for load balancing among bundle member links, using the following parameters:

IP source address

IP destination address

Router ID

Layer 4 source port

Layer 4 destination port


Note In Cisco IOS XR Release 4.0.1, the hw-module load-balance bundle l2-service l3-params command is replaced by the load-balancing flow command in L2VPN configuration mode.


Per-Flow Load Balancing—The Cisco ASR 9000 Series Router also supports per-flow load balancing on non-bundle interfaces using Layer 3 and Layer 4 routing information. For more information, see the Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Configuration Guide.

BFD Per Member Link—Beginning in Cisco IOS XR Release 4.0.1, the BFD feature supports BFD sessions on individual physical bundle member links to monitor Layer 3 connectivity on those links, rather than just at a single bundle member as in prior releases on the Cisco ASR 9000 Series Router.

When you run BFD on link bundles, you can run an independent BFD session on each underlying physical interface that is part of that bundle.

When BFD is running on a link bundle member, the following layers of connectivity are effectively tested as part of the interface state monitoring for BFD:

Layer 1 physical state

Layer 2 Link Access Control Protocol (LACP) state

Layer 3 BFD state

The BFD agent on each bundle member link monitors state changes on the link. BFD agents for sessions running on bundle member links communicate with a bundle manager. The bundle manager determines the state of member links and the overall availability of the bundle. The state of the member links contributes to the overall state of the bundle based on the threshold of minimum active links or minimum active bandwidth that is configured for that bundle.

BFD Echo Latency Detection—Beginning in Cisco IOS XR 4.0.1, you can configure BFD sessions on non-bundle interfaces to bring down a BFD session when it exceeds the configured echo latency tolerance.

BFD Echo Startup Validation—Beginning in Cisco IOS XR Release 4.0.1, you can verify that the echo packet path is working and within configured latency thresholds before starting a BFD session on non-bundle interfaces.

For more information about BFD Per Member Link, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide.

PVST+ Gateway—Per-Vlan STP (PVST) is a mechanism for creating multiple spanning trees. Using PVST, a separate spanning tree is created for each VLAN.

For more information about this feature, refer to the Implementing Multiple Spanning Tree Protocol section of the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide.

Integrated Routing and Bridging (IRB)—IRB provides the ability to exchange traffic between bridging services on the Cisco ASR 9000 Series Router and a routed interface using a Bridge-Group Virtual Interface (BVI). This feature is supported on the following line cards:

2-Port 10-Gigabit Ethernet, 20-Port Gigabit Ethernet Combination Line Cards (A9K-2T20GE-B and A9K-2T20GE-L)

4-Port 10-Gigabit Ethernet Line Cards (A9K-4T-B, -E, -L)

8-Port 10-Gigabit Ethernet DX Line Cards (A9K-8T/4-B, -E, -L)

8-Port 10-Gigabit Ethernet Line Cards (A9K-8T-B, -E, -L)

16-Port 10-Gigabit Ethernet Line Cards (A9K-16T/8-B, -E, -L)

40-Port Gigabit Ethernet Line Cards (A9K-40GE-B, -E, -L)

Multicast IRB provides the ability to route multicast packets between a bridge group and a routed interface using a bridge-group virtual interface (BVI).

For more information about IRB, refer to the Configuring Integrated Routing and Bridging on the Cisco ASR 9000 Series Router section of the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide.

Traffic Mirroring—The following traffic mirroring features are added:

Traffic mirroring over a pseudowire

Flow or ACL-based traffic mirroring

Layer 3 interface support

Partial packet mirroring

For more information about the traffic mirroring features, refer to the Configuring Traffic Mirroring on the Cisco ASR 9000 Series Router section of the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide.

Dynamic ARP Inspection (DAI)—This feature is method of providing protection against address resolution protocol (ARP) spoofing attacks. It intercepts, logs, and discards ARP packets with invalid IP-to-MAC address bindings.

For more information about DAI, refer to the Dynamic ARP Inspection section of the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide.

PW Over Recursive Path—The following commands are modified in Cisco ASR 9000 Series in Cisco IOS XR software Release 4.0.1:

permit (IPv4) —The capture keyword is added.

permit (IPv6) —The capture keyword is added.

For more information about these commands, refer to the Cisco ASR 9000 Series Aggregation Services Router IP Addressing Command Reference.

IP Source Guard—This feature provides source IP address filtering on a Layer 2 port to prevent a malicious host from manipulating a legitimate host by assuming the legitimate host's IP address.

For more information about this feature, refer to the IP Source Guard section of the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide.

Dynamic 32x IGP ECMP

MAC Address Security for EVC Bridge-Domain—For information about how to configure MAC Address Security, refer to the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide.

Enhanced Performance Monitoring for Layer 2—Beginning in Cisco IOS XR Release 4.0.1, the Cisco ASR 9000 Series Router adds support for basic counters for performance monitoring on Layer 2 interfaces.

The interface basic-counters keyword has been added to support a new entity for performance statistics collection and display on Layer 2 interfaces in the following commands:

performance-mgmt statistics interface basic-counters

performance-mgmt threshold interface basic-counters

performance-mgmt apply statistics interface basic-counters

performance-mgmt apply threshold interface basic-counters

performance-mgmt apply monitor interface basic-counters

show performance-mgmt monitor interface basic-counters

show performance-mgmt statistics interface basic-counters

The performance-mgmt threshold interface basic-counters command supports the following attribute values for Layer 2 statistics, which also appear in the show performance-mgmt statistics interface basic-counters and show performance-mgmt monitor interface basic-counters command:

Attribute
Description

InOctets

Bytes received (64-bit)

InPackets

Packets received (64-bit)

InputQueueDrops

Input queue drops (64-bit)

InputTotalDrops

Inbound correct packets discarded (64-bit)

InputTotalErrors

Inbound incorrect packets discarded (64-bit)

OutOctets

Bytes sent (64-bit)

OutPackets

Packets sent (64-bit)

OutputQueueDrops

Output queue drops (64-bit)

OutputTotalDrops

Outband correct packets discarded (64-bit)

OutputTotalErrors

Outband incorrect packets discarded (64-bit)


For information about how to configure Performance Monitoring, see the Implementing Performance Management section of the Cisco ASR 9000 Series Aggregation Services Router System Monitoring Configuration Guide.

Video Monitoring Trap and Clone—The following commands are introduced on the Cisco ASR 9000 Series Router in Cisco IOS XR software Release 4.0.1:

clear performance traffic clone profile

show performance traffic clone profile

For more information about these commands, refer to the Video Monitoring Commands on Cisco ASR 9000 Series Router section of the Cisco ASR 9000 Series Aggregation Services Router Multicast Command Reference.

IPv6 Multicast Routing is supported on the Cisco ASR 9000 Series Cisco IOS XR software Release 4.0.1.

For more information about this feature, refer to the Implementing Layer-3 Multicast Routing on Cisco ASR 9000 Series Routers section of the Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide.

PW Load Balancing—Traffic load balancing over multiple links is typically required to maximize networks while maintaining redundancy. This feature applies to pseudowires under L2VPN and includes both VPWS and VPLS.

For more information, refer to the Pseudowire Load Balancing section of the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide.

DHCP over PW—The Cisco ASR 9000 Series Routers provide the ability to perform DHCP snooping where the DHCP server is reachable on a pseudowire. The dhcp ipv4 snoop profile {dhcp-snooping-profile1} command is provided under the bridge domain to:

enable DHCP snooping on a bridge

attach a DHCP snooping profile to the bridge

QoS Port Shaping Policies—Support for simultaneous configuration of port-shape policies in main interfaces and individual subinterface service policies was added.

For more information, refer to the Configuring Modular QoS Service Packet Classification and Marking on Cisco ASR 9000 Series Routers section of the Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide.

Scale Profiles—The scale profile is a user-configurable setting that tunes the router to perform more efficiently to the selected application. You should specify the scale profile before deploying the router to production use.

For information about how to configure scale profiles, refer to the Information About Scale Profiles section of the Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide.


Note Video Monitoring is not supported in the L3XL scale profile.


ACL Based Forwarding (ABF) OT—This feature enables you to choose services from multiple providers for broadcast TV over IP, IP telephony, data, and so on.

For information about how to configure ABF, refer to the ABF section of the Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Configuration Guide.

MPLS TE Hop Limit—You can limit the number of hops traversed by MPLS-TE Tunnels. Cisco IOS XR Release 4.0.1 introduces the following new command:

router#(config-if) path-selection hop-limit <1-255>
 
   

IGMP Snooping—Cisco IOS XR software Release 4.0.1 adds support for the CISCO-MLD-SNOOPING-MIB. This MIB provides remote network management systems the ability to manage the IGMP Snooping feature when IGMP Snooping is enabled at the Bridge-Domain level.

To obtain SNMP data from the CISCO-MLD-SNOOPING-MIB for a bridge domain, create an snmp community mapped to the bridge domain using the following commands:

router(config)#snmp-server community community-name rw systemowner 
router(config)#snmp-server community-map community-name context 
vpls_bridge-domain-name
 
   

For more information about IGMP Snooping, refer to the Implementing Layer-2 Multicast with IGMP Snooping on Cisco ASR 9000 Series Routers section of the Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide.

Other Performance Management Enhancements—The following additional performance management enhancements are included in Cisco IOS XR Release 4.0.1:

You can retain performance management history statistics across a process restart or route processor (RP) failover using the new history-persistent keyword option for the performance-mgmt statistics interface command.

You can save performance management statistics to a local file using the performance-mgmt resources dump local command.

You can filter performance management instances by defining a regular expression group (performance-mgmt regular-expression command), which includes multiple regular expression indices that specify strings to match. You apply a defined regular expression group to one or more statistics or threshold templates in the performance-mgmt statistics interface or performance-mgmt thresholds interface commands.

Hardware Features Introduced in Cisco IOS XR Software Release 4.0.1 for the Cisco ASR 9000 Series Router

The following hardware features introduced in Cisco IOS XR Software Release 4.0.1 are supported on the Cisco ASR 9000 Series Router platform:

4-Port Clear Channel T3/E3 SPA (SPA-4XT3E3)

2-Port Clear Channel T3/E3 SPA (SPA-2XT3E3)

1-Port Channelized OC-3/STM-1 SPA (SPA-1XCHSTM1/OC3)

4-Port OC-3/STM-1 POS SPA (SPA-4XOC3)

8-Port OC-3/STM-1 POS SPA (SPA-8XOC3)

New Features in Cisco IOS XR Software Release 4.0.0

The following sections contain information on new features and enhancements in Cisco IOS XR Software Release 4.0.0:

New Software Features Supported on all Platforms

Cisco ASR 9000 Series-Specific Software Features

Cisco ASR 9000 Series Hardware Features Introduced in Cisco IOS XR Software Release 4.0.0


Note Cisco Session Border Controller (SBC) is not supported on any platform in Cisco IOS XR Software Release 4.0.0. Cisco IOS XR Software Release 3.7 is the last release that supports SBC.



Note When upgrading the Cisco IOS XR Software Release 3.9.2 to Cisco IOS XR Software Release 4.0.0, IOS XR directories are also created on the boot disk (disk0) along with the ASR 9000 directories.


New Software Features Supported on all Platforms

The following new software features in Cisco IOS XR Software Release 4.0.0 are supported on all platforms:

BGP-AD with LDP Signalling

SSH Remote Command Execution

Non-default SSM Range

MPLS features

Automatic Backup Tunnels

SRLG

MPLS-TE SRLG CLI Migration Steps from pre Release 4.0 to Release 4.0

In Cisco IOS XR Software Release 4.0.0 the MPLS TE SRLG command has been moved from MPLS TE config to Global level config. Other protocols can now use the SRLG configuration.

SRLG command syntax in releases prior to Release 4.0:

mpls  traffic-eng
    interface GigabitEthernet0/3/0/0
        srlg  400
        srlg  401
        srlg  402
 
   

SRLG command syntax in releases prior to Release 4.0:

srlg
   interface GigabitEthernet0/3/0/0
       value 400
       value 401
       value 402
 
   

Migration Steps


Step 1 Load the new 4.0 image

Step 2 Execute the show run mpls traffic-eng command

Step 3 Delete all the SRLG values under the interface in MPLS Traffic-eng configuration using the no srlg command

    config t
    mpls traffic-eng
    int GigabitEthernet0/3/0/0
       no srlg  400
       no srlg 401
       no srlg 402
 commit

Step 4 Add the SRLG values in the new configuration using the srlg and value commands

config t <enter>
    srlg <enter>
    interface GigabitEthernet0/3/0/0 <enter>
       value 400 <enter>
       value 401 <enter>
       value 402 <enter>
commit
 
   

MPLS OAM

For more information on these new MPLS features, refer to the Implementing MPLS Traffic Engineering module and the Implementing MPLS OAM module of the Cisco IOS XR MPLS Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.

Cisco ASR 9000 Series-Specific Software Features

The following new software features were introduced in Cisco IOS XR Software Release 4.0.0 on the Cisco ASR 9000 Series Router platform:

Multi-Chassis Link Aggregation.

Multi-chassis support for LACP

IPoDWDM Proactive Protection For ISIS and IP FRR

Layer 3 load-balancing on Layer 2 LAG

Cisco ASR 9000 SIP 700 linecard software features

IPHC (IP Header Compression for PPP/MLPPP/MLPPP-LFI) support only on A9K-SIP-700/SPA-2xCHOC12/DS0


Note Slot level IPHC configuration is supported on the XR12000, but not on the ASR-9000.


MPLS/TE-FRR support

Only the 8-port OC-12 SPA, the 2-port OC-48 SPA and the 1-port OC-192 SPA support the MPLS/TE Fast Reroute feature. The MPLS/TE Fast Reroute feature is supported on the main interface, not on sub-interfaces. There is no support for the MPLS/TE FRR feature on the 2-port channelized OC-12 SPA or on the 1-port channelized OC 48 SPA.

Layer 3 VPN (vpn4,mvpn4) support only on the A9K-SIP-700/SPA-8xOC12-POS, A9K-SIP-700/SPA-2xCHOC12-POS, A9K-SIP-700/SPA-2xOC48-POS and the A9K-SIP-700/SPA-1xCHOC48

Inter-AS,CSC,6VPE support only on the A9K-SIP-700/SPA-8xOC12-POS, A9K-SIP-700/SPA-2xCHOC12-POS, A9K-SIP-700/SPA-2xOC48-POS and the A9K-SIP-700/SPA-1xCHOC48

Frame Relay (FR), MLFR/LFI & FRF.12 support on the Cisco ASR 9000 SIP 700 linecard

Link Noise Monitoring support on the Cisco ASR 9000 SIP 700 linecard

IPv4 BGP-Policy Accounting and BFD (on the Cisco ASR 9000 SIP 700 linecard only)

IPv6 uRPF (on the Cisco ASR 9000 SIP 700 linecard only)

Software support for the following SPAs on the Cisco ASR 9000 SIP 700 linecard:

SPA-OC192POS-XFP

SPA-2XOC48POS/RPR

SPA-8XOC12-POS

SPA-1XCHOC48/DS3

6PE features for IPv6 L3VPN on the Cisco ASR 9000 SIP 700 linecard.

BGP per VRF/CE label allocation for 6PE feature

6VPE features for IPv6 L3VPN on Cisco ASR 9000 SIP 700 linecard

IPv6 ACL support on the Cisco ASR 9000 SIP 700 linecard

For detailed software configuration information on the shared port adapters (SPAs) and SPA interface processors (SIPs), see the following document:

Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide

Cisco Interface and Hardware Component Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.0

IPv4 multicast support on serial interfaces

For more information on this feature, refer to the Implementing Multicast Routing on Cisco IOS XR Software module of the Cisco IOS XR Multicast Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.

Multicast features:

MVPN Extranet

MVPN Auto-RP Lite

MVPN Hub and Spoke Topology

For more information on these features, refer to the Implementing Multicast Routing on Cisco IOS XR Software module of the Cisco IOS XR Multicast Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.

BGP features:

BGP Additional Path Support

With this feature, BGP advertises additional paths.

Accumulated Interior Gateway Protocol (AIGP) Metric Attribute

Use this attribute for BGP to report the sum of the metric of each link along the path.

Unipath PIC for Non-VPN Address-families (6PE/IPv4 Unicast)

For more information on these features, refer to the Cisco IOS XR Routing Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.

Multiprotocol Label Switching (MPLS) Ping and Trace features

Any Transport over MPLS (AToM) features on Point to Point Layer 2 services

For more information on these new MPLS features, refer to the Implementing MPLS Traffic Engineering module and the Implementing MPLS OAM module of the Cisco IOS XR MPLS Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.

Cisco ASR 9000 Series Hardware Features Introduced in Cisco IOS XR Software Release 4.0.0

The following hardware features introduced in Cisco IOS XR Software Release 4.0.0 are supported on the Cisco ASR 9000 Series Router platform:

1-Port Channelized OC48/STM16 DS3 SPA (SPA-1XCHOC48/DS3)

2-Port OC-48/STM16 SPA (SPA-2XOC48POS/RPR)

8-Port OC12/STM4 SPA (SPA-8XOC12-POS)

1-Port OC192/STM64 POS SPA (SPA-OC192POS-XFP)

For detailed hardware information on the shared port adapters (SPAs) and SPA interface processors (SIPs), see the following document:

Cisco ASR 9000 Series Router SIP and SPA Hardware Installation Guide

Cisco Interface and Hardware Component Configuration Guide for the Cisco ASR 9000 Series Router, Release 4.0.0

Features Introduced in Cisco IOS XR Software Release 3.9.2

The following features introduced in Cisco IOS XR Software Release 3.9.2 are supported on the Cisco ASR 9000 Series Router platform:

IPv6 Over Bundle

Cisco IOS XR Software Release 3.9.2 adds IPv6 as a protocol that can be passed over link bundles on the Cisco ASR 9000 Series Router platform.

This feature covers IPv6 support over Ethernet and POS bundles, including Bundle-VLANs. The features in this release that are supported on IPv6 over bundle interfaces are:

IPv6 Unicast

IPv6 Multicast

32 members per bundle (bundle-pos or bundle-ether).

Bundle interfaces of different bandwidth.

IPv6 QOS

IPv6 ACL

L2 load balance of v6 traffic over bundle interfaces.

Ipv6 BGP Policy Accounting

The following features are not supported in IPv6 over Bundle:

RSVP signaling on top of IPv6 bundle interfaces

TE and FRR on top of IPv6 bundle interfaces

GRE, L2TPv3 tunnels on top of IPv6 bundle interfaces

IPSEC tunnels over IPv6 bundle interfaces

Limitations:

User shall be able to configurable thresholds for the number of component links that need to be up and active for a link bundle to be up and active

Support up to 4000 (4k) Bundle VLANs in total.

L2VPN service over IPv6 bundled interfaces

MVPN Service over IPv6 bundled interfaces

On the Cisco ASR 9000 Series Router platform, this feature is available for all line cards

Ipv6 on bundles is not supported on the SIP-700 on the Cisco ASR 9000 Series Router platform

IPv6 ACLs on bundles is supported from release 3.9.2 onwards

IPv6 multicast is not supported on bundle interfaces/normal interfaces in 3.9.2

IPv6 BGP Policy Accounting is currently not supported over physical or sub-interfaces.

More information about link bundling configuration and monitoring can be found in the following Command Reference Guides, Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference and Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Command Reference, online.

ACL Based Forwarding (ABF)

Cisco IOS XR Software Release 3.9.2 introduces support on the Cisco ASR 9000 Series Router platform for packet forwarding and routing according to customer defined policies.

An access control list (ACL) consists of one or more access control entries (ACE) that collectively define the network traffic profile. This profile can then be referenced by Cisco IOS XR software features such as traffic filtering, route filtering, QoS classification, and access control. Each ACL includes an action element (permit or deny) and a filter element based on criteria such as source address, destination address, protocol, and protocol-specific parameters.

Prefix lists are used in route maps and route filtering operations and can be used as an alternative to access lists in many Border Gateway Protocol (BGP) route filtering commands. A prefix is a portion of an IP address, starting from the far left bit of the far left octet. By specifying exactly how many bits of an address belong to a prefix, you can then use prefixes to aggregate addresses and perform a function on them, such as redistribution (filter routing updates).

Hardware Limitations:

Support for ABF is only for IPv4 and Ethernet line cards. IPv6 and other interfaces are not supported

ABF is an ingress line card feature and the egress line card must be ABF aware.

SIP-700 is not ABF aware and hence drops ABF packets.

Restrictions:

The following nexthop configurations are not supported:

Attaching ACL having a nexthop option in the egress direction.

Modifying an ACL attached in the egress direction having nexthop.

deny ACE with nexthop.

The following interfaces are not supported: loopback, interflex, and L2.

The ABF feature configuration on A9K-SIP-700 is not supported.

ABF nexthop packets received by A9K-SIP-700 are dropped.


Note There is one exception to this. In case of IP to TAG, the label is imposed by the ingress LC (based on ABF nexthop), and the packet crosses the fabric as a tag packet. These packets are handled by A9K-SIP-700 without any issue.


Packets punted in the ingress direction from the NPU to the LC CPU are not subjected to ABF treatment due to lack of ABF support in the slow path.


Note For example, IP Options packets are not subjected to ABF. The packet is forwarded without ABF.


Packets punted in the egress direction from the NPU to the LC CPU other than in order to glean adjacency are not subjected to ABF treatment due to the lack of ABF support in the slow path.


Note IP packet(s) needing fragmentation are not subjected to ABF. The packet is forwarded in the traditional way. Fragmented packets received are handled by ABF.


nexthop in VRF is not supported. nexthop is looked at in the global table only.

Generic Routing Encapsulation (GRE)

Cisco IOS XR Software Release 3.9.2 introduces support on the Cisco ASR 9000 Series Router platform for the GRE tunneling protocol. GRE is a simple, generic way to transport packets of one protocol over another protocol by means of encapsulation. The GRE tunneling protocol enables:

High Assurance Internet Protocol Encryptor (HAIPE) devices for encryption over the public Internet and nonsecure connections.

Service providers (that do not run MPLS in their core network) to provide VPN services along with the security services.

For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide and the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference online.

Hardware Limitations:

Support for GRE is only for the Ethernet line card.

SIP-700 is not GRE aware and will drop GRE packets.

Restrictions:

The GRE feature has the following restrictions.

A maximum of 500 GRE tunnels can be configured per system.

GRE is limited to tunneling of unicast IPv4 data packets.

Packets received with nested and concatenated GRE headers are dropped.

Transport header support is limited to IPv4

Path MTU discovery is not supported over GRE tunnel interfaces. When size of the packet going over GRE tunnel interface exceeds the tunnel MTU, the ucode will punt the packet to the slow path for best effort fragmentation. Since punted packets are policed, this doesn't provide real fragmentation support. If the decap router receives a fragmented GRE packet, the fragments will also be punted to the slow path for best-effort reassembly. The user is responsible for making sure the MTUs configured along the tunnel path are large enough to guarantee the GRE packet will not be fragmented between tunnel source and destination routers.

No Layer 3 features (like QoS, ACL and netflow) are supported over GRE tunnel interfaces. Features configured on the underlying physical interface will be applied.

No support for optional checksum as defined in RFC2784.

No support for key, and sequence number fields as defined in RFC2890.

Features Introduced in Cisco IOS XR Software Release 3.9.1

The following features introduced in Cisco IOS XR Software Release 3.9.1 are supported on the Cisco ASR 9000 Series Router platform:

AIS for CFM (Y.1732 Performance Monitoring)

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for Alarm Indication Signal (AIS) functionality for Connectivity Fault Management (CFM) in conformance to the ITU-T Y.1731 standard. For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide online.

CFM over BLM

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for Ethernet Connectivity Fault Management (CFM) over bundled link members (BLM). For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide online.

CFM over Link Aggregation Groups (LAGs)

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for Ethernet Connectivity Fault Management (CFM) over link aggregation groups (LAGs). For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide online.

Ethernet Fault Detection for CFM

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for EFD for CFM. Ethernet Fault Detection (EFD) is a feature of Ethernet Connectivity Fault Management (CFM) that provides line protocol fault detection for Ethernet interfaces.

CFM Configurable Tagging

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for configurable tagging for CFM. For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide online.

PBB

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for the IEEE 802.1ah Standard for Provider Backbone Bridging (PBB). For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide online.

MVRP-Lite

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for MVRP-Lite (Multiple VLAN Registration Protocol Lite). For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Multicast Command Reference and the Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide online.

Note that MVRP-Lite describes does not implement the MAP or Registrar functions of the MRP specification or enact attribute registrations in the local forwarding table.

Netflow

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for Netflow. NetFlow is useful for the following:

Accounting/Billing—NetFlow data provides fine grained metering for highly flexible and detailed resource utilization accounting.

Network Planning and Analysis—NetFlow data provides key information for strategic network planning.

Network Monitoring—NetFlow data enables near real-time network monitoring capabilities.

For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Netflow Command Reference and the Cisco ASR 9000 Series Aggregation Services Router Netflow Configuration Guide online.

6PE/VPE

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for the 6PE (IPv6 over MPLS) feature. 6PE allows IPv6 domains to communicate with each other over an MPLS IPv4 core network. Note that IPv6 over bundles is NOT supported on the Cisco ASR 9000 Series Router platform running Cisco IOS XR Software Release 3.9.1 or earlier.

Also note that when downgrading from Cisco IOS XR Software Release 4.0.1 or Release 3.9.1 to an earlier release, if a 6PE/VPE configuration is present in the system, the 6PE/VPE configuration needs to be unconfigured before initiating the downgrade.

16x10-Gigabit Ethernet (16 x 10 GE) SFP+ Line Card

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for the 16x10-Gigabit Ethernet (16 x 10 GE) SFP+ line card.

BGP-AD with LDP Signalling

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for extending the BGP-AD feature to add support for LDP signalling. BGP-AD with BGP signalling was already supported on the Cisco ASR 9000 Series Router platform. LDP signalling is tied to L2VPN services.

SSH Remote Command Execution

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for the SSH remote command execution feature. This feature allows an operator to execute a command on the Cisco ASR 9000 Series Router without logging into the Cisco ASR 9000 Series Router, using non-interactive SSH mode. The result of the command is sent via the established channel to the operator. The SSH client running on the operator end prints the output.

Uncompressed Vidmon

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for high bandwidth flow on the Video Monitoring service introduced in Cisco IOS XR Software Release 3.9.0.

16K Queues per NPU on 10 Gigabit Ethernet Line Cards

Cisco IOS XR Software Release 3.9.1 added support on the Cisco ASR 9000 Series Router for 16K Queues per Network Processing Unit (NPU) on the 10 Gigabit Ethernet line cards.

2000 VRRP Sessions

Cisco IOS XR Software Release 3.9.1 added support on the Cisco ASR 9000 Series Router for up to 2000 Virtual Router Redundancy Protocol (VRRP) sessions.

SONET DS3

Cisco IOS XR Software Release 3.9.1 added support for SONET DS3 on the Cisco ASR 9000 Series Router with SIP-700 and SPA-2XCH0C12. For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide online.

BPID-02

Cisco IOS XR Software Release 3.9.1 added support for the show plugin slot counts command which displays cumulative and running counts of card inserts per slot on the Cisco ASR 9000 Series Router with the BPID-02 card. For more information on the show plugin slot counts command, refer to the Cisco ASR 9000 Series Aggregation Services Router System Management Command Reference online.

MPLS-TE Automatic Bandwidth

Cisco IOS XR Software Release 3.9.1 added support for the MPLS-TE automatic bandwidth feature The MPLS-TE automatic bandwidth feature measures the traffic in a tunnel and periodically adjusts the signaled bandwidth for the tunnel.

Multicast VPN

Cisco IOS XR Software Release 3.9.1 added support for the Multicast VPN feature. (For IPv4 address family only - MVPNv6 is not supported on the Cisco ASR 9000 Series Routers in Cisco IOS XR Software Release 4.0.1). For more information on this feature, refer to the Cisco ASR 9000 Series Aggregation Services Router Multicast Command Reference and the Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide online.

Policy Based Forwarding and Layer 2 Protocol Tunneling

Cisco IOS XR Software Release 3.9.1 added support for the Policy Based Forwarding and Layer 2 Protocol Tunneling features. Layer 2 Protocol Tunneling (L2PT) is a Cisco proprietary protocol for tunneling Ethernet protocol frames across Layer 2 (L2) switching domains. This includes protocol tunnelling of CDP, PVST+, STP, and VTP protocol frames. For more information on these two features, refer to the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide online.

Multiple Spanning Tree Protocol (MSTP) over Link Aggregation Groups (LAGs)

Cisco IOS XR Software Release 3.9.1 added support for the Multiple Spanning Tree Protocol (MSTP) over Link Aggregation Groups (LAGs) feature and the MSTP over MSTAG feature. For more information on these features, refer to the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Configuration Guide online.

8x10-Gigabit Ethernet (8 x 10 GE) Line Card Medium Queue

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for the medium queue 8x10-Gigabit Ethernet line card (A9K-8T-B). Support for the high and low queue 8x10-Gigabit Ethernet line cards was introduced in Cisco IOS XR Software Release 3.9.0.

REP Access Gateway

Cisco IOS XR Software Release 3.9.1 introduced support on the Cisco ASR 9000 Series Router platform for the REP (Resilient Ethernet Protocol) Access Gateway feature.

The REP (Resilient Ethernet Protocol) Access Gateway provides the same functionality as MST-AG, (Multiple Spanning Tree Access Gateway) but where the access network is running REP rather than MST. All of the old syntax is extended to allow 'repag' where 'mstag' could be specified before:

Configuration Commands including REPAG

spanning-tree { mstag | repag } <protocol instance identifier>
    preempt delay { until <hh:mm:ss> |
                    for <n> { hours | minutes | seconds } }
    interface <Inteface name>
        name <name>
        revision <revision>
        max age <secs>
        provider-bridge
        bridge-id <bridge id> [ startup-value <startup bridge id> ]
        port-id <port id> [ startup-value <startup port id> ]
        external-cost <cost> [ startup-value <startup cost> ]
        hello-time <secs>
        instance <id>
            vlan-id <vlan range>[,<vlan range][,<vlan range>][,<vlan range>]
            priority <pri> [ startup-value <startup pri> ]
            port-priority <pri> [ startup-value <startup pri> ]
            cost <cost> [ startup-value <startup cost> ]
            root-id <bridge id> [ startup-value <startup bridge id> ]
            root-priority <pri> [ startup-value <startup pri> ]

Show Commands

show spanning-tree { mstag | repag }  <proto-inst> [interface <intf>] [brief]
show spanning-tree { mstag | repag }  <proto-inst> bpdu interface <intf>

Debug Command

debug spanning-tree { mstag | repag } packet { brief | full } { sent | received }

Features Introduced in Cisco IOS XR Software Release 3.9.0

The following features introduced in Cisco IOS XR Software Release 3.9.0 are supported on the Cisco ASR 9000 Series Router platform:

ANCP over IP Unnumbered Interfaces

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for up to 400 Access Node Control Protocol (ANCP) sessions and an associated 400 IP unnumbered interfaces.


Note IP unnumbered interfaces on bundled Ethernet is only supported on the Cisco ASR 9000 Series Router platform.


100ms LACP

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for LACP running over bundle member interfaces at intervals down to 100 ms.

Cisco ASR 9000 Series 8-Port Ten Gigabit Ethernet line card, 80G Line Rate

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the A9K-8T line card, which provides an 80G line rate line card.

2x10GE + 20xGE on a Single Line Card

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the A9K-2T20GE line card, which provides 2x10GE + 20xGE on a single line card.

WAN PHY and OTN(G.709) modes

Cisco IOS XR Software Release 3.9.0 added support for WAN PHY and OTN(G.709) modes, which provide IPoDWM on the newly-introduced A9K-8T line card and on the newly-introduced A9K-2T20G line card.

Here is the syntax of the transport-mode command, used to choose WAN PHY or OTN(G.709) mode:

[no] transport-mode {wan | otn}
 
   
 
   
RP/0/RSP0/CPU0:ROSH10(config-if)#transport-mode  wan
RP/0/RSP0/CPU0:ROSH10(config-if)#transport-mode  otn bit-transparent {opu1e | ouu2e}
 
   

There are two loopback modes available under IPoDWDM:

RP/0/RSP0/CPU0:ROSH10(config)#controller dwdm 0/2/0/0 
RP/0/RSP0/CPU0:ROSH10(config-dwdm)#loopback ?
  internal  Select internal loopback mode
  line      Select line loopback mode
 
   

There are three types of admin states: in-service, maintenance, and out-of-service. Set the admin-state to out-of-service before provisioning any command under controller dwdm mode.

RP/0/RSP0/CPU0:ROSH10(config)#controller dwdm 0/2/0/0 
RP/0/RSP0/CPU0:ROSH10(config-dwdm)#admin-state ?
  in-service      change the admin-state to In-service (IS)
  maintenance     change the admin-state to Out-of-service-Maintenance (OOS-MT)
  out-of-service  change the admin-state to Out-of-service (OOS)
 
   

Here are the show controllers commands introduced to support the three states (lan, wanphy and dwdm):

RP/0/RSP0/CPU0:ROSH10#sh controllers tenGigE 0/2/0/0 ?     
  all       Show all the information
  bert      Show BERT status
  control   Show configuration and control information
  internal  Show internal information
  mac       Show mac information
  phy       Show phy information
  regs      Show registers information
  stats     Show stats information
  xgxs      Show xgxs information
 
   
 
   
RP/0/RSP0/CPU0:ROSH10#sh controllers wanphy 0/2/0/1 ?
  alarms     Show alarm information
  all        Show all information
  registers  Show register information
 
   
 
   
RP/0/RSP0/CPU0:ROSH10#sh controllers dwdm 0/2/0/0 ?
  g709            Show G709  info
  log             Signal logging information
  optics          Show transponder info
  pm              show dwdm performance monitoring
  proactive       Proactive Protection Feature Status
  srlg            Display Network SRLGs configured at this port
  tdc             Show Tunable Dispersion info
  wavelength-map  Wavelength channel number  map table
 
   

Low Queue Line Cards

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the following low queue line cards:

A9K-40GE-L

A9K-8T/4-L

A9K-4T-L

A9K-8T-L

SIP-700

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the SIP-700, a 20G SPA Interface Processor.

SPA-2XCHOC12/DS0

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the SPA-2XCHOC12/DS0, a 2-Port Channelized OC-12/DS0 SPA (Shared Port Adapter).

SIP-700 and SPA-2XCHOC12/DS0 Software Features

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router with the SIP-700 and SPA-2XCHOC12/DS0 for the following software features:

MLPPP/LFI

IC-SSO

MR-APS

SONET, T1

Frequency Synchronization

IPv4 Netflow

QoS Features

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router with the SIP-700 and SPA-2XCHOC12/DS0 for the following QoS features:

Support for IPv4 payload on Serial (PPP encapsulation), MLPPP, and MCMP interfaces. Support for LFI traffic on MLPPP or MCMP bundles.

Support for classification based on DSCP, precedence, protocol, qos-group (egress only), discard-class (egress only), and access-lists.

Support for marking, policing, and priority (see Fabric QoS section) in the ingress direction.

Support for marking, policing, and all queueing actions (bandwidth, bandwidth-remaining, shaping, queue-limit, priority levels 1 and 2, and random-detect) in the egress direction.

On the SIP-700 and SPA-2XCHOC12/DS0 only a 2-parameter scheduler is supported i.e. either bandwidth or bandwidth-remaining can be used in the same policy, but not both.

Note that traffic shaping on an input interface is not supported on the SIP-700.

Two levels of hierarchy supported, with only class-default permitted in the parent policy-map.

Fabric QoS configured using the priority action in the ingress direction.

Support for re-programming the QoS policy in response to underlying link bandwidth change on multi-link interfaces. There is no support for in place QoS policy modification on the SIP-700.

Support for the "encap-sequence" action to set the traffic class for traffic on multi-class MLPPP interfaces in the egress direction.

The "set cos" command on the egress of a Layer 3 interface is valid and supported. The "set cos" command on the ingress of a Layer 3 interface is rejected when performed on a subinterface. The "set cos" command on the ingress of a Layer 3 interface is ignored on a main interface.

Y.1731 Performance Monitoring - Delay & Delay Variance

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for Y.1731 PM, which initially supports 2-way scheduled delay and delay variance measurements.

IP FRR

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for IPFRR (IP Fast ReRoute), a set of technologies used in order to rapidly converge traffic flows around link and/or node failures. Only MLPPP encapsulation channels on the OC-12 SONET interface can be protected by IP-FRR in Cisco IOS XR Software Release 4.0.1.

L2 Multicast Limit

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the Layer 2 Multicast Limit feature, which supports IGMP Snooping based limits for both the maximum number of allowed multicast channels per subscriber and the maximum bandwidth available for multicast per subscriber.

Traffic Mirroring

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for Local Traffic Mirroring (EFP to EFP) and also the option of appending a VLAN tag on the destination port for transport across an Ethernet network. Traffic Mirroring copies traffic from one or more Layer 2 interfaces or sub-interfaces, including Layer 2 link bundle interfaces/sub-interfaces, and sends the copied traffic to one or more destinations for analysis by a network analyzer or other monitoring device.

On a switch, unicast traffic from A to B is only forwarded to the B port. Therefore, the network analyzer does not see this traffic. When the Traffic Mirroring feature is enabled, the network analyzer is attached to a port that is configured to receive a copy of every packet that host A sends. This port is called a traffic mirroring port.

Currently, the Cisco ASR 9000 Series Router only supports Local SPAN and R-SPAN.

A maximum of 8 monitor sessions, and 800 source ports are supported.

You can configure 800 source ports on a single monitor session or configure an aggregate total of 800 source ports on up to 8 different monitor sessions.

The following SPAN types are not supported:

ER-SPAN (Encapsulated Remote Switched Port Analyzer)

Traffic is mirrored to a remote site via a GRE tunnel.

Pseudowire SPAN (PW-SPAN).

Traffic is mirrored to a remote site via an MPLS pseudowire, instead of using a standard destination interface. (Plan to be supported in 4.0.1 release.)

VLAN-based SPAN.

In this case, the source for the mirrored traffic is not simply a set of interfaces, but is a full bridge-domain.

Filter-SPAN (F-SPAN)

In this case, flow and ACL are applied in mirroring the traffic.

Cisco recommends not mirroring more 15% of total transit traffic. On TenGigE or bundle interfaces there is a limit of 1.5G on each ingress and egress traffic port to be mirrored.

SPAN Configurations:

To create a "monitor-session" in global config:

-monitor-session <name>

- destination interface <dst_interface>

To attach a source port in local-plane config:

-interface <src-interface> l2transport

- monitor-session <name> [direction {rx_only | tx_only]

SPAN Configuration Samples:

SPAN with Physical Interfaces (Local SPAN)

The following example shows a basic configuration for SPAN with physical interfaces. When traffic flows over the point to point cross connect between gig0/2/0/19 and gig0/2/0/11, packets received and transmitted on gig0/2/0/19 will also get mirrored to gig0/2/0/15.

monitor-session ms1
 destination interface gig0/2/0/15
!
interface gig0/2/0/11
 l2transport
!
interface gig0/2/0/15
 l2transport
!
interface gig0/2/0/19
 l2transport
  monitor-session ms1
!
l2vpn
 xconnect group xg1
  p2p xg1_p1
   interface gig0/2/0/11
   interface gig0/2/0/19
  !
 !
!
 
   

SPAN with EFPs (R-SPAN)

The following example shows a basic configuration for SPAN with EFP interfaces. When traffic flows over the point to point cross connect between gig0/2/0/19.10 and gig0/2/0/11.10, packets received and transmitted on gig0/2/0/19.10 will also get mirrored to gig0/2/0/15.10.

monitor-session ms1
 destination interface gig0/2/0/15.10
!
interface gig0/2/0/11.10 l2transport
 encapsulation dot1q 10
!
interface gig0/2/0/15.10 l2transport
 encapsulation dot1q 10
!
interface gig0/2/0/19.10 l2transport
 encapsulation dot1q 10
 monitor-session ms1
!
l2vpn
 xconnect group xg1
  p2p xg1_p1
   interface gig0/2/0/11.10
   interface gig0/2/0/19.10
  !
 !
!
 
   
 
   

Display Commands

show monitor-session [session_name] status [detail] [error]

Shows the status of different monitor sessions.

Keywords:

session_name

detail

errors

Example output:

RP/0/RSP0/CPU0:RTP-VIKING-L2-8#show monitor-session status 
Fri Feb 20 14:56:04.233 UTC 
Monitor-session cisco-rtp1
Destination interface GigabitEthernet0/5/0/38
================================================================================
Source Interface      Dir   Status
--------------------- ----  ----------------------------------------------------
Gi0/5/0/4             Both  Operational
Gi0/5/0/17            Both  Operational

show monitor-session [session_name] counters

Shows the statistics/counters (received/transmitted/dropped) of different source ports.

Video Monitoring

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for the Video Monitor application, used to monitor video flows, detect quality degradation, report metrics and raise alarms.

LAG integration with H-QOS

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for extending Hierarchical QoS (H-QoS) support to link aggregation bundles. Shared Policy Instances (SPI) allow for QoS policy shared across multiple sub-interfaces.

EFP Based Load Balancing.

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for EFP based load balancing, which provides a way to carry all the traffic of a specific EFP over a single physical member link.

Ethernet Connectivity Fault Management (E-CFM) with Ethernet Wire Service (EWS)

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for Ethernet Connectivity Fault Management (E-CFM), a subset of EOAM that provides a number of protocols and procedures that allow discovery and verification of the path through 802.1 bridges and LANs. Note that CFM 100 ms CCMs and CFM Exploratory Linktrace were introduced on the Cisco ASR 9000 Series Router with Cisco IOS XR Software Release 3.7.2.

BGP PIC Edge for IP/MPLS

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for BGP PIC Edge for IP/MPLS, which provides sub-second convergence for IP and MPLS-VPN.

MPLS TE Path Protection

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for MPLS TE path protection, which provides a backup tunnel between the MPLS/TE head-end and the tail router and added to Cisco's MPLS/TE suite of bandwidth protection features, which also include node protection and link protection.

Image Refresh using Compact Flash

Cisco IOS XR Software Release 3.9.0 added support on the Cisco ASR 9000 Series Router for performing an image refresh using compact flash.

Features Introduced in Cisco IOS XR Software Release 3.7.3

The following features introduced in Cisco IOS XR Software Release 3.7.3 are supported on the Cisco ASR 9000 Series Router platform:

MSTAG Enhancements

Cisco IOS XR Software Release 3.7.3 added support on the Cisco ASR 9000 Series Router for multiple spanning tree access gateway (MSTAG) topology control.

MSTP Enhancements

Cisco IOS XR Software Release 3.7.3 added support on the Cisco ASR 9000 Series Router for the following features added to MSTP:

PortFast—allows a port to be marked as an edge port that does not participate in the spanning tree.

BPDUGuard—protects PortFast ports from misconfigurations by error-disabling them if they receive a BPDU.

UplinkFast—allows a RootPort to transition straight to forwarding, if there are no other active RootPorts on the box.

BackboneFast—allows for accelerated recovery from indirect link failures.

RootGuard—prevents a port from becoming the RootPort.

MSTAG support on physical and bundle Ethernet interfaces.

EFP Egress Filtering on the Cisco ASR 9000 Series Router

Cisco IOS XR Software Release 3.7.3 introduced EFP Egress Filtering on the Cisco ASR 9000 Series Router.

For more information on configuring the EFP Egress Filtering feature including the associated EFP Egress Filtering commands on the Cisco ASR 9000 Series router, refer to the Egress EFP Filtering on the Cisco ASR 9000 Series Router feature module.

Flood Optimization

In prior releases the Cisco ASR 9000 Series Router acting as a bridge flooded broadcast and unknown unicast traffic to all the forwarding engines on all the line cards.

In Cisco IOS XR Software Release 3.7.2 if a pseudo wire is configured in a bridge domain all broadcast and unknown unicast traffic is flooded to all line cards in the system in order to attain fast convergence. With Cisco IOS XR Software Release 3.7.3 the flood optimization feature changes this default behavior. FGID will get programmed based on the primary paths on which the pseudo wire is going out and traffic will get flooded only to the line cards on which the pseudo wire resides. This mode is called Bandwidth Optimization mode.

But if a Fast ReRoute event occurs when fast convergence is set up it will take a longer time to complete the reroute as more hardware programming such as adding bridge ports etc. needs to be done. So for customers who are sensitive to this increased delay a command called flood mode convergence-optimized is provided in Cisco IOS XR Software Release 3.7.3. Use this flood mode convergence-optimized command to switch back to the convergence optimized mode where traffic gets flooded to all the line cards.

With this flood mode convergence-optimized command users are able to turn on/off the bandwidth optimized mode.

For more information on the flooding disable command and other Layer 2 VPLS commands on the Cisco ASR 9000 Series router, refer to the Point to Point Layer 2 Services Commands section in the Cisco ASR 9000 Series Aggregation Services Router L2VPN and Ethernet Services Command Reference here:

http://www.cisco.com/en/US/partner/docs/routers/asr9000/software/asr9k_r4.0/lxvpn/command/reference/lesr40lp2p.html

ECMP (Equal Cost Multipath Protocol) Link Bundle hashing for PWs (pseudo wires) on Layer 3 NNI (Network to Network Interface) is now based on Virtual Connection labels

In Cisco IOS XR software Release 3.7.3 as part of pseudo wire flood optimization, the Layer 3 interface list for a pseudo wire is now based on Virtual Connection labels. By using ECMP Link Bundle hashing, the Layer 3 interface list for a pseudo wire can be condensed to a single Layer 3 interface. This Layer 3 interface (slot and network protocol flood mask) is derived from the ordered array of Layer 3 interface list (masks).

Early Fast Discard command

Cisco IOS XR software Release 3.7.3 added support for the Early Fast Discard command. This command was added to process all high priority packets

Command syntax:

(config)# hw-module location <loc> early-fast-discard		
	(config-early-fast-discard)# mode [outer-encap-only | include-inner-encap]	
	(config-early-fast-discard)# vlan-cos <0-8> vlan-op [lt | ge]
	The defaults are 6 and ge (greater than or equal to)
	(config-early-fast-discard)# ip-prec <0-8> ip-op [lt | ge]	
	The defaults are 6 and ge (greater than or equal to)
	(config-early-fast-discard)# mpls-exp <0-8> mpls-op [lt | ge]	
	The defaults are 6 and ge (greater than or equal to)
(config)# no hw-module location <loc> early-fast-discard		

Power Management multiple override mechanism

Cisco IOS XR software Release 3.7.3 added support for the user to override the Power Management feature in order to configure extra line cards without full power supply redundancy.

This feature allows a card to be forced to power up, regardless of an unprogrammed EEPROM power draw value. As with the ROMMON variable, this feature is intended for temporary use. After the cookie value has been programmed, remove this configuration by repeating the CLI command with the ''no'' option.

Command example:

RP/0/RSP0/CPU0:ios(admin-config)# hw-mod power override location <loc>
 
   

The IGMP Snooping feature no longer removes the state after a port goes down

Starting with Cisco IOS XR software Release 3.7.3, mrouter and membership states on the Cisco ASR 9000 Series Router no longer need to be relearned after a port goes down. Once a port goes down, the IGMP Snooping feature immediately removes all group membership states from that port. Once an mrouter port goes down, the IGMP Snooping feature removes the port from the list of mrouter ports and removes that port from the flood set of all multicast routes.

New CLI:

tcn_relearning [cisco | rfc4541 | none]

For more information on the IGMP Snooping feature on the Cisco ASR 9000 Series router, refer to the Implementing Layer 2 Multicast using IGMP Snooping on Cisco ASR 9000 Series Routers section in the Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide here:

http://www.cisco.com/en/US/docs/routers/asr9000/software/multicast/configuration/guide/mcasr9kigsn.html

The VRRP & FRR failover time is no longer greater than 1 sec after a hardware module reload

Cisco IOS XR software Release 3.7.3 improves the Cisco ASR 9000 Series Router VRRP & FRR failover time after a hardware module reload to less than or equal to one second.

The VPLS preferred path fallback enable option is now supported on the Cisco ASR 9000 Series Router

Layer 2 VPNs can provide pseudo wire resiliency through their routing protocols. When the connectivity between end-to-end PE routers fails, an alternative path to the directed LDP session and the user data takes over. With Cisco IOS XR software Release 3.7.3, the user can fall-back to the preferred path once it has been restored.

32k EFPs/HQOS/ANCP/ACL/IGMP EFP up time > 30 minutes. This enhancement provides a five minute improvement over Cisco IOS XR software Release 3.7.2.

The show environment power-supply command has been updated:

RP/0/RSP0/CPU0:Green_RO(admin)#show environment power-supply 
Thu Jul 23 17:01:08.829 pst
R/S/I   Modules Sensor          Watts           Status
 
   
0/PM0/*
        host    PM              3000            Ok
 
   
0/PM1/*
        host    PM              3000            Ok
 
   
0/PM4/*
        host    PM              3000            Ok
 
   
0/PM5/*
        host    PM              3000            Ok
 
   
 
   
Power Shelves Type: AC
 
   
Total Power Capacity:                           12000W
Usable Power Capacity:                          9000W
Supply Failure Protected Capacity:              9000W
Feed Failure Protected Capacity:                6000W
Worst Case Power Used:                          3010W
 
   
 Slot                                                      Max Watts
 ----                                                      ---------
 0/0/CPU0                                                        375
 0/1/CPU0                                                        395
 0/RSP0/CPU0                                                     250
 0/RSP1/CPU0                                                     250
 0/4/CPU0                                                        375
 0/6/CPU0                                                        375
 0/FT0/SP                                                        495  (default)
 0/FT1/SP                                                        495  (default)
 
   
 
   
Worst Case Power Available:             5990W
Supply Protected Capacity Available:    5990W
Feed Protected Capacity Available:      2990W
 
   
 
   

Features Introduced in Cisco IOS XR Software Release 3.7.2

The following features in Cisco IOS XR Software Release 3.7.2 are supported on the Cisco ASR 9000 Series Router platform:

CFM 100ms CCMs

CFM Exploratory Linktrace

IPv6 Filtering

IPv6 Routing

IPv6 Forwarding

IPv6 ACL

ECMP

ICMP

HSRP-VRRP L3VPN support

QoS Shared Policy Instance

ANCP-triggered interface bandwidth modification

Tri-rate SFP copper port bandwidth modification

IPv6 Classification

Tri-rate copper SFP

ANCP Termination

IPv4 VRF on main and sub-interfaces

CSC, Inter-AS L3VPN

CE-PE Link and FRR Protection for VPNv4 traffic on MPLS core

IGMP Snooping v2 and v3

Multicast Redirect UNI

PIM to SSM Mapping

IGMP VRF override

IPv6 OSPF, RIP, BGP

Multi-segment dynamic and static VPWS pseudo wires

Split Horizon Group for ACs

BGP Auto-discovery and signaling for VPLS and VPWS

Broadcast Storm Control

Important Notes

For Cisco IOS XR Software Release ,4.0.1 the Cisco ASR 9000 Series Router does not support the following inventory schemas:

vkg_invmgr_adminoper.xsd

vkg_invmgr_common.xsd

vkg_invmgr_oper.xsd

Only MLPPP encapsulation channels on the OC-12 SONET interface can be protected by IP-FRR in Cisco IOS XR software Release 3.9.0 and above.

For Cisco IOS XR software Release 3.9.0 and above the SIP 700 with the 2-Port Channelized OC-12/DS0 SPA does not support SDH (including all the mappings under SDH) or DS0 mappings.

For Cisco IOS XR software Release 3.9.0 and above the SIP 700 with the 2-Port Channelized OC-12/DS0 SPA does not support ATM or POS.

For Cisco IOS XR software Release 3.9.0 and above the SIP 700 with the 2-Port Channelized OC-12/DS0 SPA does not support MPLS/Traffic Engineering FRR.

For Cisco IOS XR software Release 4.0.1 and above the SIP 700 with the 1-Port Channelized OC48/STM16 DS3 SPA does not support MPLS/Traffic Engineering FRR.

For Cisco IOS XR software Release 4.0.1 and above the SIP 700 with the 1-Port Channelized OC48/STM16 DS3 SPA, the 2-Port Channelized OC-12/DS0 SPA , the 8-Port OC12/STM4 SPA , and the 2-Port OC-48/STM16 SPA Layer 2VPN support only includes FR.

For Cisco IOS XR software Release 4.0.0 and above the hw-module location <LOC> reload warm command has been disabled. This means that the warm reload feature has been disabled.

Country-specific laws, regulations, and licenses—In certain countries, use of these products may be prohibited and subject to laws, regulations, or licenses, including requirements applicable to the use of the products under telecommunications and other laws and regulations; customers must comply with all such applicable laws in the countries in which they intend to use the products.

Card, fan controller, and RSP removal—For all card removal and replacement (including fabric cards, line cards, fan controller, and RSP) follow the instructions provided by Cisco to avoid impact to traffic. See the Cisco ASR 9000 Series Router Getting Started Guide for procedures.

Exceeding Cisco testing—If you intend to test beyond the combined maximum configuration tested and published by Cisco, contact your Cisco Technical Support representative to discuss how to engineer a large-scale configuration maximum for your purpose.

Installing a Line Card—For a fully populated 40-port high density Line Card with cable optics, maintenance time required for card replacement is higher. For more information about Line Card installation and removal, refer to the Cisco ASR 9000 Aggregation Services Router Ethernet Line Card Installation Guide.

Serial Interfaces Out of Order in "show ip interface brief" Command —The show ip interface brief command might display interfaces out of order if different types of serialization are used on the SPA cards.

The serial interfaces are displayed in the show ip interface brief command output in the order shown in the example below:

The ordering is based on:

1. Slot

2. SPA

3. Type

a. T3

b. T3/T1

c. vt15-T1

d. multilink

This may be confusing (the interfaces appear out of order) for the user who is accustomed to IOS.

Example output:

With multiple cards:

 
   
Serial0/2/0/1/1/1:0  (t3/t1)
Serial0/2/0/1/2/1:0
Serial0/2/0/1/3/1:0
Serial0/2/0/1/4/1:0
Serial0/2/0/1/5/1:0
Serial0/2/0/1/6/1:0
Serial0/2/0/1/7/1:0
Serial0/2/0/1/8/1:0
Serial0/2/0/1/9/1:0
Serial0/2/0/1/10/1:0
Serial0/2/0/1/11/1:0
Serial0/2/0/1/12/1:0
 
   
Serial0/2/0/0/1/1/1:0  (vt15)
Serial0/2/0/0/2/1/1:0
Serial0/2/0/0/3/1/1:0
Serial0/2/0/0/4/1/1:0
Serial0/2/0/0/5/1/1:0
Serial0/2/0/0/6/1/1:0
Serial0/2/0/0/7/1/1:0
Serial0/2/0/0/8/1/1:0
Serial0/2/0/0/9/1/1:0
Serial0/2/0/0/10/1/1:0
Serial0/2/0/0/11/1/1:0
Serial0/2/0/0/12/1/1:0
 
   
Multilink 0/2/0/0/1
 
   
Serial0/2/1/0/1  (t3)
 
   
Serial0/2/1/1/1/1:0  (t3/t1)
Serial0/2/1/1/2/1:0
Serial0/2/1/1/3/1:0
Serial0/2/1/1/4/1:0
Serial0/2/1/1/5/1:0
Serial0/2/1/1/6/1:0
Serial0/2/1/1/7/1:0
Serial0/2/1/1/8/1:0
Serial0/2/1/1/9/1:0
Serial0/2/1/1/10/1:0
Serial0/2/1/1/11/1:0    
Serial0/2/1/1/12/1:0    
 
   
 
   
Serial0/6/0/1/1/1:0    
Serial0/6/0/1/2/1:0    
Serial0/6/0/1/3/1:0    
Serial0/6/0/1/4/1:0    
Serial0/6/0/1/5/1:0
Serial0/6/0/1/6/1:0
Serial0/6/0/1/7/1:0
Serial0/6/0/1/8/1:0
Serial0/6/0/1/9/1:0
Serial0/6/0/1/10/1:0
Serial0/6/0/1/11/1:0
Serial0/6/0/1/12/1:0
 
   
Serial0/6/0/0/1/1/1:0
Serial0/6/0/0/2/1/1:0
Serial0/6/0/0/3/1/1:0
Serial0/6/0/0/4/1/1:0
Serial0/6/0/0/5/1/1:0
Serial0/6/0/0/6/1/1:0
Serial0/6/0/0/7/1/1:0
Serial0/6/0/0/8/1/1:0
Serial0/6/0/0/9/1/1:0
Serial0/6/0/0/10/1/1:0
Serial0/6/0/0/11/1/1:0
Serial0/6/0/0/12/1/1:0
 
   
Multilink 0/6/0/0/1
 
   
Serial0/6/1/0/1
 
   
Serial0/6/1/1/1/1:0
Serial0/6/1/1/2/1:0
Serial0/6/1/1/3/1:0
Serial0/6/1/1/4/1:0
Serial0/6/1/1/5/1:0
Serial0/6/1/1/6/1:0
Serial0/6/1/1/7/1:0
Serial0/6/1/1/8/1:0
Serial0/6/1/1/9/1:0
Serial0/6/1/1/10/1:0
Serial0/6/1/1/11/1:0
Serial0/6/1/1/12/1:0

Starting with Cisco IOS XR Software Release 3.9 the pw-class class name encapsulation mpls command control-word option default is now disable -In Cisco IOS XR Software Release 3.9 and above the control word is disabled by default. To configure the control word, enter the control-word keyword shown in the following example:

pw-class class1 encapsulation mpls control-word

For configured policer rates of less than 1 Mbps, the actual policer rate can be approximately 10 percent less than the configured rate. For example, for a configured policer rate of 500 kbps, the actual policer rate is 448 kbps due to a granularity round down in hardware.

In Cisco ASR 9000 Series Router Software Release 4.0.0, the minimum configurable logging buffered size has been increased to 307200. Any configuration with a value less than 307200 fails to upgrade to Release 4.0.1.

Run the show configuration failed startup command on startup to display the failed configuration.

Workaround: Prior to upgrading to Release 4.0.1, set the logging buffer size to a value of 307200 or greater (logging buffered 307200).

dsu mode Command Default—For E3 interfaces on the 4-Port Clear Channel T3/E3 SPA that interoperate with E3 interfaces on a Cisco 10000 Series router, the default data service unit (DSU) mode is digital-link. To change the DSU mode to cisco, configure scrambling.

Caveats

Caveats describe unexpected behavior in Cisco IOS XR software releases. Severity-1 caveats are the most serious caveats; severity-2 caveats are less serious.

This section lists the caveats for Cisco ASR 9000 Series Router Software Release 4.0.1 and the Cisco ASR 9000 Series platform.

Open Cisco IOS XR Software Release 4.0.1 Caveats

The following open caveats apply to Cisco IOS XR Software Release  and are not platform specific:

CSCtf70866

Basic Description:

Scale enhancements in rds timeouts.

Symptom:

The following trace back is seen on the router console:

rdsfs_svr[309]: %OS-RDS-7-QUERY_PEERS_TIMED_OUT : TID=10 Couldnt cmd=262 for GID=0x7d9 
CHDL=0x40000009(0x40000009) #to_resp=6 req=6 got=0 state=0x10, expstate=0x20 
preq_id=15 rds_type=1 : pkg/bin/rdsfs_svr : (PID=598104) : -Traceback= 4ce44d2c 
4ce4877c 4ce545dc 4ce5868c 4ce58fc0 40012db8 40000c04 40005494 40006038 4c2c0a64 
4c2c2250 4c2a2298 4c2a1604 4c2a03b0 4c29f9f0 4c28f3c4 
 
   

Conditions:

On rare occasions, the trace back is seen on the router console under the following conditions:

1. RP or RSP Failover

2. OIR or node reload

3. Certain configuration removal, for example, snmp-server configuration. The nodes not responding in time lead to query peers requests to time out. During FO/OIR the membership view with in RDS might not be in sync with GSP. Requests that go out during this window tend to fail.

Workaround:

There is no workaround available for this issue.

Recovery:

The recovery is automatic. There is no functional impact on the node.

CSCtg40080

Basic Description:

Show mrib route does not show proper "Flag" output for ExtranetV6

Symptom:

Flag field is incorrect in "show mrib route".

Conditions:

When you have IPv6 MVPN enabled.

Workaround:

There is no work around. It is a show command issue.

Further Problem Description:

None.

CSCth81761

Basic Description:

%ROUTING-BGP-3-NEGCOUNTER msgs after router reload or APS switchover

Symptom:

%ROUTING-BGP-3-NEGCOUNTER messages are seen on console.

Conditions:

The error messages were seen on performing a router reload or during APS switchover

Workaround:

None.

CSCti48713

Basic Description:

SONET_SDH XML does not bind to correct path for history stats

Symptom:

'PM get path data failed : Invalid argument ' message will be displayed on the console

Conditions:

This symptom is observed when querying the SONET_SDH XML schema.

Workaround:

None.

Recovery:

None.

CSCtj45064

Basic Description:

Slow CLI response during multiple VTY connections.

Symptom:

In Cisco IOS XR software if the telnet or ssh access frequency is very high, the CLI response performance may decrease significantly. The CPU load increases to more than 90% with the top consumer processes of sysdb_svr_local, sysdb_shared_nc, and sysdb_mc. Eventually telnet and ssh access is not possible any more.

Conditions:

This issue occurs with fast consecutive and lasting telnet or ssh login attempts and multiple logins per minute over a long period of time.

Workaround:

Do not use more than three telnet or ssh login attempts per minute continuously over a lasting period of time.

Recovery:

Reduce the frequency of telnet or ssh logins.

CSCtj54889

Basic Description:

"snmpd[1101]: t11 Failed process trap" flooding the console.

Symptom:

"snmpd[1101]: t11 Failed process trap" messages.

snmpd is consuming high memory and CPU with a sustained high rate of traps. See "show snmp" and "show snmp traps" to find the trap rate and per-trap type counts.

Conditions:

This was seen with "logging trap debug" and "snmp-server traps syslog" configured while a high rate debugs are enabled. This is likely with the above configuration when enabling of "debug snmp trap" as it creates a feedback loop resulting in exponential growth in the rate of syslog traps.

Workaround:

Change any "logging trap debug" configuration to have syslogs of higher severity generated as traps, for example 'logging trap informational' or 'logging trap warning'. It is not recommended to use the configuration 'logging trap debug' as that causes EVERY syslog, including debugs, to be generated as SNMP traps via the CISCO-SYSLOG-MIB. This causes a trap storm.

Recovery:

Disable any debugs that are causing high rate of traps.

Restart the snmpd process by issuing process restart snmpd.'

Change the SNMP trap send throttle, snmp-server trap throttle-time <>, configuration to the minimum of 10 ms: snmp-server trap throttle-time 10

Disable any high rate traps by issuing no snmp-server traps <>.

Remove all snmp-server host configuration until the condition clears.

CSCtj82350

Basic Description:

Process 'cerrno_server' failed to pick up notified event within 240 second

Symptom:

Notice the following message after RPFO and standby RP reload:

RP/0/RP0/CPU0::Oct 31 03:44:20.893 : sysdb_svr_local[435]: %SYSDB-SYSDB-4-TIMEOUT_NFN 
: Process 'cerrno_server' (jid 152, node 0/RP0/CPU0) failed to pick up notification 
event within the timeout period (240 seconds) 
 
   

Conditions:

RPFO OR standby RP reload.

Workaround:

None.

Recovery:

Yes.

CSCtk17885

Basic Description:

BGP NSR: stnby bgp keep restarting due to PFX mismatched after RP FO .

Symptom:

BGP sessions keep flapping on standby RP after RP fail over. The following syslog indicates this issue:

bgp[1044]: %ROUTING-BGP-3-INITSYNC_FAILED : Nbr: 194.13.122.2 VRF: default AFI: IPv4 
Unicast Pfx received: 155420 expected: 1 - will retry once more 
 
   

Conditions:

This issue can occur if the following conditions are met:

1. NSR configured for BGP

2. Repeated LC/SPA OIR

3. RP FO

Workaround:

Identify the neighbor for which the prefix-mismatch is seen. First, try a soft clear for the neighbor. It may necessary to try a hard reset if the soft clear does not clear the problem.

CSCtk53821

Basic Description:

BGP IAS functionality now requires explicit next-hop-self config.

Symptom:

BGP IAS functionality has changed since Cisco IOS XR Release 3.9.x.

Conditions:

End-to-end connectivity for IAS failed due to the removal of implicit next-hop-self configuration.

Workaround:

Explicitly configure next-hop-self.

CSCtk58144

Basic Description:

IPv6 BGP session flapping due to RX path issue.

Symptom:

Few IPv6 BGP sessions configured with <= (15/45) timer might flap during RP FO when configured with NSR.

Conditions:

This issue might occur if the following conditions are met:

1. NSR configured for BGP

2. IPv6 BGP session configured with aggressive timer

3. RP FO

Workaround:

No workaround required. Those sessions come up.

Recovery:

Recovery occurs automatically.

CSCti50227

Basic Description:

Not able to modify RPL and delete prefix-set in a single commit.

Symptom:

When a policy that is attached directly or indirectly to an attach point needs to be modified, a single commit operation cannot be performed when:

Removing a set or policy referred by another policy that is attached to any attach point directly or indirectly.

Modifying the policy to remove the reference to the same set or policy that is getting removed.

Workaround:

The commit must be performed in two steps:

1. Modify the policy to remove the reference to the policy or set and then commit.

2. Remove the policy or set and commit.

Caveats Specific to the Cisco ASR 9000 Series Router

The following caveats are specific to the Cisco ASR 9000 Series platform:

CSCti51186

Basic Description:

After OIR, OC-192 SPA fails to come up, its in disabled state.

Symptom:

Sometimes a SPA might fail to come up after insertion and is kept in DISABLED state. A message is logged indicating "PLATFORM-SPAQFPBridgeCtrl-1-SPI_BUSx_ERROR" for this slot/bay, and the SPA is "DISABLED". The show platform CLI shows the SPA in "DISABLED" state.

Conditions:

SPA is physically removed and then reinserted within 15 seconds after removal.

Recovery:

Remove the SPA. Examine the SIP bay connector pins and the SPA connector pins for any damage. If there is no damage, reinsert the SPA. If the SPA fails to come up again, call tech support.

CSCtj89297

Basic Description:

PIM snooping reopt times for multicast traffic at 10 seconds.

Symptom:

When mrouter forwarding disable feature is configured under IGMP snooping profiles, multicast traffic upon any Layer 2 access ring failures (topology changes) results in greater than one second loss of traffic.

Conditions:

This behavior is observed when BVI interfaces bridging the layer two access ring with the Layer 3 multicast topology is configured. The Layer 2 access ring is serviced by a bridge-domain with IGMP snooping and mrouter forwarding disabled. The NPE routers are connected via a pseudowire within the same bridge-domain.

Workaround:

None.

Recovery:

Multicast traffic would automatically be restored when convergence is over.

CSCtj95058

Basic Description:

pifibm_server_lc TB due to eot msg send failed No space left on device.

Symptom:

Error message showing on console "[cpp_lpts_cgm_notif_handler:402] eot msg send failed No space left on device" with traceback.

Conditions:

This issue occurs when the number of IPv6 VRFs with ebgp configuration. In this test case with a total of about 150 IPv6 ebgp sessions, the 103th ebgp caused the problem. The problem is caused by v6 compression. LPTS uses classification (cgm/cfm), and cfm uses v6 compressions. When adding up the IPv6 addresses to the v6 compression table, in some special combination of IPv6 addresses, the v6 compression failed.

Workaround:

When the problem happens, the IPv6 address fails the CPP classification v6 compress function. With the newly added syslog to Cisco IOS XR Release 4.0.1, the IPv6 address which failed the v6 compress is logged. The workaround, which is suitable for this particular pattern of IPv6 addresses is as follows:

1. Create a workaround ACL.

ipv6 access-list workaround permit ipv6 200::1:1:200:2/128 any

(200::1:1:200:2 is the failed compressed address in log).

2. Attach the workaround ACL to an interface of the line card which has the problem. The interface can be a shutdown interface.

3. Reload the line card.

CSCtk60470

Basic Description:

Set qos-grp/discard-class/exp-imp not working for L2->BVI(L3) path.

Symptom:

For packets forwarded from L2->BVI (L3) path if the policy attached to the L2 interface has "set action" on qos-group/discard-class/exp-imposition, they are not effective. Similarly for packets forwarded from L3 (ingress)-L3(BVI)>L2 path if the policy on L3 ingress interface has "set action" for qos-group/discard-class they are not effective as well. This results in not having a mechanism to implement Diffserve tunnel models (uniform/pipe/short-pipe) for BVI traffic. For such traffic the qos-group/discard-class are set to 0. Default Exp is based on DSCP of the packet and cannot be changed by using "set exp-imposition" from QOS policymap. However, for L2->L2 path or L3->L3 regular paths without any BVI interaction, these markings (qos-group/discard-class/exp-imposition) work as expected.

Conditions:

This issue affects BVI routed traffic, where you want to influence the exp-imposition/qos-group/discard-class using an ingress policymap on the L2 or L3 interface.

Workaround:

There are no workarounds for set-actions for qos-group/discard-class for BVI traffic. For L2->BVI path, DSCP of the packet could be modified using an ingress policy, which would set exp based on the modified DSCP.

CSCtl09643

Basic Description:

Trap and Clone MIB has invalid OIDs.

Symptom:

Top-level (root) OID (14001) for the MIB used in the implementation is incorrect. The correct OID is 765. Query to any Trap and Clone MIB objects with the correct OID return no data.

Conditions:

None.

Workaround:

Presently we can access (retrieve/set) Trap and Clone MIB data using these invalid OIDs.

Please contact your Cisco representative for more information about the workaround.

Resolved Cisco IOS XR Software PSIRT-Related Caveats

CSCti62211

Basic Description:

BGP flaps due to unknown attribute

Symptom:

Cisco IOS XR Software contains a vulnerability in the Border Gateway Protocol (BGP) feature. The vulnerability manifests itself when a BGP peer announces a prefix with a specific, valid but unrecognized transitive attribute. On receipt of this prefix, the Cisco IOS XR device will corrupt the attribute before sending it to the neighboring devices. Neighboring devices that receive this corrupted update may reset the BGP peering session.

Conditions:

Affected devices running Cisco IOS XR Software corrupt the unrecognized attribute before sending to neighboring devices, but neighboring devices may be running operating systems other than Cisco IOS XR Software and may still reset the BGP peering session after receiving the corrupted update. This is per standards defining the operation of BGP.

Workaround:

No workaround. Cisco developed a fix that addresses this vulnerability and will be releasing free software maintenance upgrades (SMUs) progressively starting 28 August 2010.

A Security Advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20100827-bgp.shtml

Upgrading Cisco IOS XR Software

Cisco IOS XR software is installed and activated from modular packages, allowing specific features or software patches to be installed, upgraded, or downgraded without affecting unrelated processes. Software packages can be upgraded or downgraded on all supported card types, or on a single card (node).

Software packages are installed from package installation envelope (PIE) files that contain one or more software components. Refer to Table 1 for a list of the Cisco ASR 9000 Series Router software feature set matrix (PIE files) and associated filenames available for the Cisco IOS XR Software Release 4.0.1 supported on the Cisco ASR 9000 Series Router.

The following URL contains links to information about how to upgrade Cisco IOS XR software:

http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html

Troubleshooting

For information on troubleshooting Cisco IOS XR software, see the Cisco ASR 9000 Series Aggregation Services Routers Getting Started Guide and the Cisco ASR 9000 Series Router Troubleshooting Feature Module.

Resolving Upgrade File Issues


Note In some very rare cases inconsistencies in the content of the internal configuration files can appear. In such situations, to avoid configuration loss during upgrade, the following steps can be optionally done before activating packages:


a. Clear the NVGEN cache:

RP/0/RSP0/CPU0:PE44_ASR-9010# run nvgen -F 1
 
   

b. Create a dummy config commit:

RP/0/RSP0/CPU0:PE44_ASR-9010# config
RP/0/RSP0/CPU0:PE44_ASR-9010(config)# hostname <hostname>
RP/0/RSP0/CPU0:PE44_ASR-9010(config)# commit
RP/0/RSP0/CPU0:PE44_ASR-9010(config)# end
 
   

c. Force a commit update by using the reload command. Press "n" when the confirmation prompt appears:

RP/0/RSP0/CPU0:PE44_ASR-9010# reload
Updating Commit Database. Please wait...[OK]
Proceed with reload? [confirm] 
 
   

d. Press "n".

In some cases other activity may preclude a reload. The following message may display:

RP/0/RSP0/CPU0:PE44_ASR-9010# reload
Preparing system for backup. This may take a few minutes ............System 
configuration backup in progress [Retry later]
 
   

If you receive this message wait and then retry the command after some time.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see What's New in Cisco Product Documentation at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html.

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