Preface

From Release 6.1.2 onwards, Cisco introduces support for the 64-bit Linux-based IOS XR operating system. Extensive feature parity is maintained between the 32-bit and 64-bit environments. Unless explicitly marked otherwise, the contents of this document are applicable for both the environments. For more details on Cisco IOS XR 64 bit, refer to the Release Notes for Cisco ASR 9000 Series Routers, Release 6.1.2 document.

The Routing Configuration Guide for Cisco ASR 9000 Series Routers preface contains these sections:

New and Changed Routing Features

This table lists the technical changes made to this document since it was first released.

Table 1. Routing Features Added or Modified in IOS XR Release 7.9.x
Feature Description

Changed in Release

Where Documented

Limiting LSA numbers in a OSPF Link-State Database

This feature is introduced.

Release 7.9.1

 Limiting LSA Numbers in a OSPF Link-State Database

Communications, Services, and Additional Information

  • To receive timely, relevant information from Cisco, sign up at Cisco Profile Manager.

  • To get the business results you’re looking for with the technologies that matter, visit Cisco Services.

  • To submit a service request, visit Cisco Support.

  • To discover and browse secure, validated enterprise-class apps, products, solutions and services, visit Cisco DevNet.

  • To obtain general networking, training, and certification titles, visit Cisco Press.

  • To find warranty information for a specific product or product family, access Cisco Warranty Finder.

Cisco Bug Search Tool

Cisco Bug Search Tool (BST) is a web-based tool that acts as a gateway to the Cisco bug tracking system that maintains a comprehensive list of defects and vulnerabilities in Cisco products and software. BST provides you with detailed defect information about your products and software.