Cisco XR 12000 User manual

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Cisco IOS XR Multicast Configuration
Guide for the Cisco XR 12000 Series
Router
Text Part Number: OL-20371-01

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Cisco IOS XR Multicast Configuration Guide for the Cisco XR 12000 Series Router
© 2009 Cisco Systems, Inc. All rights reserved.

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Cisco IOS XR Multicast Configuration Guide for the Cisco XR 12000 Series Router
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CONTENTS
Preface MCC-5
Changes to This Document MCC-5
Obtaining Documentation and Submitting a Service Request MCC-5
Implementing Multicast Routing on Cisco IOS XR Software Cisco ASR 9000 Series Routers MCC-1
Contents MCC-2
Prerequisites for Implementing Multicast Routing MCC-2
Information About Implementing Multicast Routing MCC-2
Key Protocols and Features Supported in the Cisco IOS XR Software Multicast Routing
Implementation MCC-3
Multicast Routing Functional Overview MCC-4
Cisco IOS XR Multicast Routing Implementation MCC-4
Internet Group Management Protocol and Multicast Listener Discovery MCC-5
IGMP and MLD Versions MCC-5
IGMP Routing Example MCC-6
Protocol Independent Multicast MCC-7
PIM-Sparse Mode MCC-7
PIM-Source Specific Multicast MCC-7
PIM Shared Tree and Source Tree (Shortest Path Tree) MCC-8
Multicast-Intact MCC-9
Designated Routers MCC-10
Rendezvous Points MCC-11
Auto-RP MCC-12
PIM Bootstrap Router MCC-12
Reverse-Path Forwarding MCC-13
Multicast VPN MCC-13
Multicast VPN Routing and Forwarding MCC-14
Multicast Distribution Tree Tunnels MCC-14
MVPN IPv4 and IPv6 Connectivity MCC-15
BGP Requirements MCC-15
Multitopology Routing MCC-15
Multicast VPN Extranet Routing MCC-15
Information About Extranets MCC-16
Information About the Extranet MVPN Routing Topology MCC-17

Contents
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RPF Policies in an Extranet MCC-19
Multicast Source Discovery Protocol MCC-19
Multicast Nonstop Forwarding MCC-20
Multicast Configuration Submodes MCC-20
Multicast-Routing Configuration Submode MCC-21
PIM Configuration Submode MCC-21
IGMP Configuration Submode MCC-21
MLD Configuration Submode MCC-21
MSDP Configuration Submode MCC-21
Understanding Interface Configuration Inheritance MCC-21
Understanding Interface Configuration Inheritance Disablement MCC-22
Understanding Enabling and Disabling Interfaces MCC-23
Multicast Routing Information Base MCC-23
Multicast Forwarding Information Base MCC-23
MSDP MD5 Password Authentication MCC-23
How to Implement Multicast Routing MCC-24
Configuring PIM-SM and PIM-SSM MCC-24
PIM-SM Operations MCC-24
PIM-SSM Operations MCC-25
Restrictions for PIM-SM and SSM MCC-25
Configuring a Static RP and Allowing Backward Compatibility MCC-27
Configuring Auto-RP to Automate Group-to-RP Mappings MCC-29
Configuring the Bootstrap Router MCC-31
Calculating Rates per Route MCC-34
Configuring Multicast Nonstop Forwarding MCC-36
Prerequisites for Multicast Nonstop Forwarding MCC-37
Configuring Multicast VPN MCC-40
Prerequisites for Multicast VPN MCC-40
Restrictions for Multicast VPN for Multicast Routing MCC-41
Enabling a VPN for Multicast Routing MCC-41
Specifying the PIM VRF Instance MCC-44
Specifying the IGMP VRF Instance MCC-46
Configuring the MDT Source per VRF MCC-47
Configuring Multitopology Routing MCC-50
Restrictions for Configuring Multitopology Routing MCC-50
Information About Multitopology Routing MCC-50
Configuring an RPF Topology in PIM MCC-51
Configuring MVPN Extranet Routing MCC-52
Prerequisites for MVPN Extranet Routing MCC-53
Restrictions for MVPN Extranet Routing MCC-53

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Configuring VPN Route Targets MCC-53
Interconnecting PIM-SM Domains with MSDP MCC-55
Prerequisites for Interconnecting PIM-SM Domains with MSDP MCC-56
Controlling Source Information on MSDP Peer Routers MCC-58
Configuring MSDP MD5 Password Authentication MCC-61
Multicast only fast reroute (MoFRR) MCC-63
Feature Overview MCC-63
Operating Modes of MoFRR MCC-63
Configuring MoFRR MCC-63
RIB-based MoFRR MCC-63
Configuration Examples for Implementing Multicast Routing on Cisco IOS XR Software MCC-64
MSDP Anycast RP Configuration on Cisco IOS XR Software: Example MCC-64
Bidir-PIM Configuration on Cisco IOS XR Software: Example MCC-66
Calculating Rates per Route: Example MCC-66
Preventing Auto-RP Messages from Being Forwarded on Cisco IOS XR Software: Example MCC-67
Inheritance in MSDP on Cisco IOS XR Software: Example MCC-68
Configuring IPv4 Multicast VPN: Example MCC-69
Configuring MVPN to Advertise Routes Between the CE and the PE Using OSPF:
Example MCC-69
Configuring MVPN to Advertise Routes Between the CE and the PE Using BGP:
Example MCC-74
Configuring IPv6 Multicast VPN on the Cisco XR 12000 Series Router: Example MCC-79
Configuring an IPv6 Multicast VPN to Advertise Routes Between the PE to CE with EIGRP as the
Protocol: Example MCC-79
Configuring an IPv6 Multicast VPN to Advertise Routes Between the PE to CE with BGP as the
Protocol: Example MCC-84
Configuring Multitopology Routing: Example MCC-90
Configuring MVPN Extranet Routing: Example MCC-91
Configuring the Source MVRF on the Receiver PE Router: Example MCC-91
Configuring the Receiver MVRF on the Source PE Router: Example MCC-94
Additional References MCC-96
Related Documents MCC-97
Standards MCC-97
MIBs MCC-97
RFCs MCC-97
Technical Assistance MCC-98
Index

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Cisco IOS XR Multicast Configuration Guide for the Cisco XR 12000 Series Router
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MCC-5
Cisco IOS XR Multicast Configuration Guide for the Cisco XR 12000 Series Router
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Preface
The Cisco IOS XR Multicast Configuration Guide preface contains the following sections:
• Changes to This Document, page MCC-5
• Obtaining Documentation and Submitting a Service Request, page MCC-5
Changes to This Document
Table 1 lists the technical changes made to this document since it was first printed.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
Ta b l e 1 Changes to This Document
Revision Date Change Summary
OL-20371-01 December 2009 Initial release of this document.

Preface
MCC-6
Cisco IOS XR Multicast Configuration Guide for the Cisco XR 12000 Series Router
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MCC-1
Multicast Configuration Guide
OL-
Implementing Multicast Routing on Cisco IOS XR
Software Cisco ASR 9000 Series Routers
Multicast routing is a bandwidth-conserving technology that reduces traffic by simultaneously
delivering a single stream of information to potentially thousands of corporate recipients and homes.
Applications that take advantage of multicast include video conferencing; corporate communications;
distance learning; and distribution of software, stock quotes, and news.
This document assumes that you are familiar with IPv4 and IPv6 multicast routing configuration tasks
and concepts for Cisco IOS XR software.
Multicast routing allows a host to send packets to a subset of all hosts as a group transmission rather than
to a single host, as in unicast transmission, or to all hosts, as in broadcast transmission. The subset of
hosts is known as group members and are identified by a single multicast group address that falls under
the IP Class D address range from 224.0.0.0 through 239.255.255.255.
For detailed conceptual information about multicast routing and complete descriptions of the multicast
routing commands listed in this module, you can refer to the “Related Documents” section on
page MCC-97. To locate documentation for other commands that might appear in the course of executing
a configuration task, search online in the Cisco IOS XR software master command index.
Feature History for Configuring Multicast Routing on the Cisco XR 12000 Series Router
Release Modification
Release 3.2 This feature was introduced on for the Cisco XR 12000 Series Router.
Release 3.3.0 No modification.
Release 3.4.0 No modification.
Release 3.5.0 Multicast VPNv4 was supported.
Release 3.6.0 No modification.
Release 3.7.0 The following new features or functionality were added:
• Multicast VPNv4 support was extended to include multicast VPNv6
address family.
• Support was added for multitopology routing within a default VRF table.
• A new configuration procedure was added for calculating rate per route.

Implementing Multicast Routing on Cisco IOS XR Software Cisco ASR 9000 Series Routers
Contents
MCC-2
Multicast Configuration Guide
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Contents
• Prerequisites for Implementing Multicast Routing, page MCC-2
• Information About Implementing Multicast Routing, page MCC-2
• How to Implement Multicast Routing, page MCC-24
• Configuration Examples for Implementing Multicast Routing on Cisco IOS XR Software,
page MCC-64
• Additional References, page MCC-96
Prerequisites for Implementing Multicast Routing
The following prerequisites are required to implement multicast routing on your multicast network:
• You must install and activate a Package Installation Envelope (PIE) for the multicast routing
software. For detailed information about optional PIE installation, see Cisco IOS XR Getting Started
Guide.
• To perform these configuration tasks, your Cisco IOS XR software system administrator must
assign you to a user group associated with a task group that includes the corresponding command
task IDs. All command task IDs are listed in individual command references and in the
Cisco IOS XR Task ID Reference Guide.
If you need assistance with your task group assignment, contact your system administrator. For
detailed information about user groups and task IDs, see the Configuring AAA Services on
Cisco IOS XR Software module of Cisco IOS XR Software System Security Configuration Guide.
• You must be familiar with IPv4 and IPv6 multicast routing configuration tasks and concepts.
• Unicast routing must be operational.
Information About Implementing Multicast Routing
To implement the multicast routing features described in this document you must understand the
following concepts:
• Key Protocols and Features Supported in the Cisco IOS XR Software Multicast Routing
Implementation, page MCC-3
• Multicast Routing Functional Overview, page MCC-4
• Internet Group Management Protocol and Multicast Listener Discovery, page MCC-5
• Protocol Independent Multicast, page MCC-7
• PIM Shared Tree and Source Tree (Shortest Path Tree), page MCC-8
• Multicast-Intact, page MCC-9
Release 3.8.0 Support for MVPN extranet routing was added.
Release 3.9.0 Support was added for the following features:
• Multicast-only fast reroutes (MoFRR).