Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide
Preface
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Preface

Table Of Contents

Preface

Changes to This Document

Obtaining Documentation and Submitting a Service Request


Preface


The Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide provides information and procedures related to router interface and hardware configuration.

The preface contains the following sections:

Changes to This Document

Obtaining Documentation and Submitting a Service Request

Changes to This Document

Table 1 lists the technical changes made to this document since it was first printed.

Table 1 Changes to This Document 

Revision
Date
Change Summary

OL-23105-02

February 2011

Added information about the minimum supported values for the bfd address-family ipv4 minimum-interval and bfd address-family ipv4 multiplier commands.

Added information about the maximum supported BFD rates per linecard.

For more information, see the "Configuring Bidirectional Forwarding Detection on the Cisco ASR 9000 Series Router" chapter

OL-23105-02

December 2010

Includes the following updates for Cisco IOS XR Release 4.0.1:

Support for Layer 2 statistics collection for performance monitoring on Layer 2 subinterfaces (EFPs) is added. For more information, see the "Configuring Ethernet Interfaces on the Cisco ASR 9000 Series Router" chapter.

Support for Ethernet CFM on Multi-Chassis Link Aggregation Groups (MC-LAG) was added. For more information, see the "fConfiguring Ethernet OAM on the Cisco ASR 9000 Series Router" chapter.

Support for Integrated Routing and Bridging (IRB) was introduced. For more information, see the "Configuring Integrated Routing and Bridging on the Cisco ASR 9000 Series Router" chapter.

Support for the following traffic mirroring features was added:

Traffic mirroring over a pseudowire

Flow or ACL-based traffic mirroring

Layer 3 interface support

Partial packet mirroring

For more information, see the "Configuring Traffic Mirroring on the Cisco ASR 9000 Series Router" chapter.

Support for Ethernet CFM on Multi-Chassis Link Aggregation Groups (MC-LAG) was added. For more information, see the "fConfiguring Ethernet OAM on the Cisco ASR 9000 Series Router" chapter.

Support for Dynamic Load Balancing for Link Aggregation (LAG) members was added.

The hw-module load-balance bundle l2-service l3-params command is replaced by the load-balancing flow command in L2VPN configuration mode.

     
   

Support for the following SPAs was introduced:

Cisco 4-Port Clear Channel T3/E3 SPA

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

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

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

Support for the following BFD features was added:

Support for BFD Per Member Links on Link Bundles was introduced.

The echo latency detect command was added to enable latency detection for BFD echo packets on non-bundle interfaces.

The echo startup validate command was added to verify the echo path before starting a BFD session on non-bundle interfaces.

Note Documentation was added for the following BFD features introduced in earlier Cisco IOS XR releases:

Support for the following applications with BFD was added:

Hot Standby Router Protocol (HSRP)

Virtual Router Redundancy Protocol (VRRP)

The dampening command was added to minimize BFD session flapping and delay session startup.

The echo ipv4 source command was added to specify a source IP address and override the default.

The ipv6 checksum command was added to enable and disable IPv6 checksum computation in BFD and BFD interface configuration modes.

For more information, see the "Configuring Bidirectional Forwarding Detection on the Cisco ASR 9000 Series Router" chapter.

OL-23105-01

September 2010

Initial release of this document.


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