Cisco CRS Series - Preface; Changes to This Document; Obtaining Documentation and Submitting a Service Request; Internet Group Management Protocol and Multicast Listener Discovery

Preface
The preface contains these sections:
•
Changes to This Document, page ix
•
Obtaining Documentation and Submitting a Service Request, page ix
Changes to This Document
This table lists the technical changes made to this document since it was first printed.
SummaryDate
Initial release of this documentJuly 2014
Updates to this document for Release 5.2.2.October 2014
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service
request, and gathering additional information, see What's New in Cisco Product Documentation.
To receive new and revised Cisco technical content directly to your desktop, you can subscribe to the What's
New in Cisco Product Documentation RSS feed. RSS feeds are a free service.
Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router, Release 5.2.x
ix