Preface

This preface contains these sections:

Changes to This Document

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

Table 1. Changes to This Document
Date Summary

December 2015

Initial release of this document.

July 2016

Republished with documentation updates for Cisco IOS XR Release 6.0.2 features.

November 2016

Republished with documentation updates for Cisco IOS XR Release 6.1.x features

May 2017

Republished with documentation updates for Cisco IOS XR Release 6.1.31 features

March 2018

Republished for Release 6.3.2.

April 2019

Republished for Release 6.6.2

May 2019

Republished with documentation updates for Release 6.6.25 features

December 2019

Republished with documentation updates for Release 6.6.3 features

January 2020

Republished with documentation updates for Release 7.1.1 features

August 2020

Republished with documentation updates for Release 7.2.1 features

August 2020

Republished with documentation updates for Release 7.1.2 features.

February 2021

Republished for Release 7.3.1

July 2021

Republished with documentation updates for Release 7.4.1 features.

November 2021

Republished with documentation updates for Release 7.5.1.

January 2022

Republished with documentation updates for Release 7.3.3.

Communications, Services, and Additional Information

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

  • To get the business impact 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.