Cisco CRS Series User manual

Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router,
Release 5.2.x
First Published: 2014-07-01
Last Modified: 2014-10-01
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CONTENTS
Preface Preface ix
Changes to This Document ix
Obtaining Documentation and Submitting a Service Request ix
CHAPTER 1 New and Changed Multicast Features 1
New and Changed Multicast Features 1
CHAPTER 2 Implementing Multicast Routing on Cisco IOS XR Software 3
Prerequisites for Implementing Multicast Routing 4
Information About Implementing Multicast Routing 5
Key Protocols and Features Supported in the Cisco IOS XR Software Multicast Routing
Implementation 5
Multicast Routing Functional Overview 6
Multicast Routing Implementation 6
PIM-SM, PIM-SSM, and PIM-BIDIR 7
PIM-SM Operations 7
PIM-SSM Operations 8
PIM-Bidirectional Operations 8
Restrictions for PIM-SM and PIM-SSM, and PIM BIDIR 8
Internet Group Management Protocol and Multicast Listener Discovery 9
IGMP and MLD Versions 9
IGMP Routing Example 10
Protocol Independent Multicast 11
PIM-Sparse Mode 11
PIM-Source Specific Multicast 12
PIM-Bidirectional Mode 12
PIM Shared Tree and Source Tree (Shortest Path Tree) 13
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Multicast-Intact 14
Designated Routers 15
Rendezvous Points 16
Auto-RP 17
PIM Bootstrap Router 18
Reverse-Path Forwarding 18
Multicast Non-Stop Routing 18
Failure Scenarios in NSR 19
Multicast VPN 19
Multicast VPN Routing and Forwarding 20
Multicast Distribution Tree Tunnels 20
InterAS Support on Multicast VPN 21
BGP Requirements 22
Multitopology Routing 22
Multicast VPN Extranet Routing 23
Information About Extranets 23
Information About the Extranet MVPN Routing Topology 24
RPF Policies in an Extranet 26
MVPN Bidirectional Overview 26
Multicast VPN Hub and Spoke Topology 27
Realizing the Hub and Spoke Topology 27
Label Switched Multicast (LSM) Multicast Label Distribution Protocol (mLDP) based
Multicast VPN (mVPN) Support 28
Benefits of LSM MLDP based MVPN 28
Configuring MLDP MVPN 29
P2MP and MP2MP Label Switched Paths 29
Packet Flow in mLDP-based Multicast VPN 30
Realizing a mLDP-based Multicast VPN 30
Characteristics of mLDP Profiles 30
Configuration rules for profiles 37
MLDP inband signaling 37
Summary of Supported MVPN Profiles 38
Configuration Process for MLDP MVPN (Intranet) 39
Multipoint Label Distribution Protocol Route Policy Map 41
Configuring mLDP User Interface (Opaque Types) Using the Routing Policy 42
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Contents

Configuring the mLDP User Interface for LDP Opaque Global ID Using the Routing
Policy 43
Configuring the mLDP User Interface for LDP Opaque IPv4 Using the Routing
Policy 44
Configuring the mLDP User Interface for LDP Opaque IPv6 Using the Routing
Policy 45
Configuring the mLDP User Interface for LDP Opaque MDT Using the Routing
Policy 46
Configuring the mLDP User Interface for LDP Opaque Static ID Using the Routing
Policy 47
Configuring the mLDP User Interface for LDP Opaque Recursive Using the Routing
Policy 48
Configuring the mLDP User Interface for LDP Opaque Recursive-RD Using the
Routing Policy 49
Configuring the mLDP User Interface for LDP Opaque VPNv4 Using the Routing
Policy 50
Configuring the mLDP User Interface for LDP Opaque VPNv6 Using the Routing
Policy 51
Configuring mLDP FEC at the Root Node 52
Configuring the mLDP FEC at the Root Node Using the Route Policy 52
Configuring the mLDP User Interface to Filter Label Mappings 53
Configuring the mLDP User Interface to Filter Label Mappings 54
Configuring the mLDP User Interface for Feature Filtering 55
Configuring the mLDP User Interface for Feature Filtering - MoFRR 55
Configuring the mLDP User Interface for Feature Filtering - Make-before-break 56
Configuring the mLDP User Interface for Feature Filtering - Recursive FEC 58
Limitations of Route Policy Map 59
Next-Generation Multicast VPN 60
Supported Features 60
PE-PE Ingress Replication 63
Multicast IRB 63
Supported bridge port types 64
Restrictions 64
Multicast IRB 64
Multicast Source Discovery Protocol 64
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Contents

VRF-aware MSDP 65
Multicast Nonstop Forwarding 65
Multicast Configuration Submodes 65
Multicast-Routing Configuration Submode 66
PIM Configuration Submode 66
IGMP Configuration Submode 66
MLD Configuration Submode 66
MSDP Configuration Submode 66
Understanding Interface Configuration Inheritance 66
Understanding Interface Configuration Inheritance Disablement 67
Understanding Enabling and Disabling Interfaces 68
Multicast Routing Information Base 68
Multicast Forwarding Information Base 68
MSDP MD5 Password Authentication 69
How to Implement Multicast Routing 69
Configuring PIM-SM and PIM-SSM 69
Configuring Native PIM BIDIR 71
Configuring MVPN GRE BIDIR 74
Configuring MVPN MLDP BIDIR 83
Configuring a Static RP and Allowing Backward Compatibility 90
Configuring Auto-RP to Automate Group-to-RP Mappings 92
Configuring the Bootstrap Router 94
Calculating Rates per Route 96
Configuring Multicast Nonstop Forwarding 98
Configuring Multicast VPN 100
Prerequisites for Multicast VPN 101
Restrictions for Multicast VPN for Multicast Routing 101
Enabling a VPN for Multicast Routing 101
Specifying the PIM VRF Instance 104
Specifying the IGMP VRF Instance 105
Configuring the MDT Source per VRF 105
Configuring Label Switched Multicast 108
Verification of LSM mLDP based MVPN Configuration 113
Configuring Multitopology Routing 116
Restrictions for Configuring Multitopology Routing 116
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Contents

Information About Multitopology Routing 117
Configuring an RPF Topology in PIM 117
Configuring MVPN Extranet Routing 119
Prerequisites for MVPN Extranet Routing 119
Restrictions for MVPN Extranet Routing 119
Configuring VPN Route Targets 120
Interconnecting PIM-SM Domains with MSDP 121
Controlling Source Information on MSDP Peer Routers 124
Configuring MSDP MD5 Password Authentication 126
Configuring VRF for MSDP 127
Multicast only fast reroute (MoFRR) 128
Operating Modes of MoFRR 128
Configuring MoFRR 129
RIB-based MoFRR 129
Configuring Route Policy for Static RPF 130
Point-to-Multipoint Traffic Engineering Label-Switched Multicast 131
Point to Multipoint LSP(P2MP) 131
Multicast Routing Protocol support for P2MP 132
Enabling Multicast Forwarding Over Tunnel Interface (at Ingress Node) 132
P2MP configurations at egress node and bud node 133
Configuring Static Reverse Path Forwarding (RPF) 133
Configuring Core Tree Protocol 134
Configuration Examples for Implementing Multicast Routing on Software 135
MSDP Anycast RP Configuration on Cisco IOS XR Software: Example 135
Bidir-PIM Configuration on Software: Example 136
Calculating Rates per Route: Example 137
Preventing Auto-RP Messages from Being Forwarded on Software: Example 138
Inheritance in MSDP on Software: Example 138
MSDP-VRF: Example 139
Configuring Route Policy for Static RPF: Example 139
Configuring IPv4 Multicast VPN: Example 139
Configuring MVPN to Advertise Routes Between the CE and the PE Using OSPF:
Example 140
Configuring MVPN to Advertise Routes Between the CE and the PE Using BGP:
Example 144
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Configuration Examples for MVPN Profiles 148
Configuration Examples for Inband mLDP profiles 148
Configuration Examples for P2MP-TE profiles 149
Configuration examples for Partitioned mLDP profiles 152
Configuration Examples for Rosen-mGRE profiles 154
Configuration Examples for Rosen mLDP profiles 156
Configuring Multitopology Routing: Example 159
Configuring MVPN Extranet Routing: Example 160
Configuring the Source MVRF on the Receiver PE Router: Example 160
Configuring the Receiver MVRF on the Source PE Router: Example 162
Configuring Multicast Hub and Spoke Topology: Example 165
Hub and Spoke Non-Turnaround Configuration: Example 165
Hub and Spoke with Turnaround: Example 174
Configuring LSM based MLDP: Examples 180
Additional References 190
CHAPTER 3 Implementing Automatic Multicast Routing: 193
Automatic Multicast Tunneling 193
Advantages of AMT 193
Prerequisites for configuring AMT 194
Restrictions for AMT 194
Implementing AMT 195
AMT Message Exchanges 195
AMT Tunnel and Traffic Types 196
Out of Resource mode 196
Enabling AMT 196
Configuring AMT 197
Configuration Examples for Implementing AMT 198
Enabling AMT: Example 199
AMT Maximum Gateway Configuration: Example 199
AMT MTU Configuration: Example 199
AMT TOS Configuration: Example 199
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Contents

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
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Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router, Release 5.2.x
x
Preface
Obtaining Documentation and Submitting a Service Request