Cisco XR 12000 Manuale utente

Cisco IOS XR Multicast Configuration Guide for the Cisco XR12000

Series Router, Release 5.1.x

First Published: September 03, 2013

Last Modified: September 03, 2013

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Cisco Systems, Inc.

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Text Part Number: OL-30405-02

CONTENTS

Preface

Preface ix

Changes to This Document ix

Obtaining Documentation and Submitting a Service Request ix

CHAPTER 1

New and Changed Information 1

New and Changed Information Table 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

Restrictions for PIM-SM, PIM-SSM, and PIM-BIDIR 8

Internet Group Management Protocol and Multicast Listener Discovery 8

IGMP and MLD Versions 9

IGMP Routing Example 9

Protocol Independent Multicast 10

PIM-Sparse Mode 11

PIM-Source Specific Multicast 11

PIM Shared Tree and Source Tree (Shortest Path Tree) 12

Multicast-Intact 13

Designated Routers 14

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Rendezvous Points 15

Auto-RP 16

PIM Bootstrap Router 17

Reverse-Path Forwarding 17

Multicast VPN 17

Multicast VPN Routing and Forwarding 18

Multicast Distribution Tree Tunnels 18

InterAS Support on Multicast VPN 19

BGP Requirements 20

Multitopology Routing 20

Multicast VPN Extranet Routing 21

Information About Extranets 21

Information About the Extranet MVPN Routing Topology 22

RPF Policies in an Extranet 24

Multicast VPN Hub and Spoke Topology 24

Realizing the Hub and Spoke Topology 25

Label Switched Multicast (LSM) Multicast Label Distribution Protocol (mLDP) based

Multicast VPN (mVPN) Support 26

Benefits of LSM MLDP based MVPN 26

Configuring MLDP MVPN 26

Limitations for MLDP in Cisco XR 12000 Series Routers 27

P2MP and MP2MP Label Switched Paths 27

Packet Flow in mLDP-based Multicast VPN 28

Realizing a mLDP-based Multicast VPN 28

Characteristics of mLDP Profiles 28

Configuration rules for profiles 34

Summary of Supported MVPN Profiles 35

Configuration Process for MLDP MVPN (Intranet) 36

Next-Generation Multicast VPN 38

Multicast Source Discovery Protocol 39

VRF-aware MSDP 40

Multicast Nonstop Forwarding 40

Multicast Configuration Submodes 41

Multicast-Routing Configuration Submode 41

PIM Configuration Submode 41

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Contents

IGMP Configuration Submode 41

MLD Configuration Submode 41

MSDP Configuration Submode 42

Understanding Interface Configuration Inheritance 42

Understanding Interface Configuration Inheritance Disablement 42

Understanding Enabling and Disabling Interfaces 43

Multicast Routing Information Base 43

Multicast Forwarding Information Base 44

MSDP MD5 Password Authentication 44

How to Implement Multicast Routing 44

Configuring PIM-SM and PIM-SSM 45

Configuring a Static RP and Allowing Backward Compatibility 47

Configuring Auto-RP to Automate Group-to-RP Mappings 48

Configuring the Bootstrap Router 50

Calculating Rates per Route 54

Configuring Multicast Nonstop Forwarding 56

Configuring Multicast VPN 59

Prerequisites for Multicast VPN 59

Restrictions for Multicast VPN for Multicast Routing 60

Enabling a VPN for Multicast Routing 60

Specifying the PIM VRF Instance 63

Specifying the IGMP VRF Instance 64

Configuring the MDT Source per VRF 65

Configuring Label Switched Multicast 67

Verification of LSM mLDP based MVPN Configuration 72

Configuring Multitopology Routing 74

Restrictions for Configuring Multitopology Routing 75

Information About Multitopology Routing 75

Configuring an RPF Topology in PIM 76

Configuring MVPN Extranet Routing 77

Prerequisites for MVPN Extranet Routing 78

Restrictions for MVPN Extranet Routing 78

Configuring VPN Route Targets 78

Interconnecting PIM-SM Domains with MSDP 80

Controlling Source Information on MSDP Peer Routers 83

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Contents

Configuring MSDP MD5 Password Authentication 86

Configuring VRF for MSDP 87

Multicast only fast reroute (MoFRR) 88

Operating Modes of MoFRR 89

Configuring MoFRR 89

RIB-based MoFRR 89

Configuring Route Policy for Static RPF 90

Point-to-Multipoint Traffic Engineering Label-Switched Multicast 91

Point to Multipoint LSP(P2MP) 92

Multicast Routing Protocol support for P2MP 92

Enabling Multicast Forwarding Over Tunnel Interface (at Ingress Node) 92

P2MP configurations at egress node and bud node 94

Configuring Static Reverse Path Forwarding (RPF) 94

Configuring Core Tree Protocol 95

Configuration Examples for Implementing Multicast Routing on Software 96

MSDP Anycast RP Configuration on Cisco IOS XR Software: Example 96

Calculating Rates per Route: Example 97

Preventing Auto-RP Messages from Being Forwarded on Software: Example 98

Inheritance in MSDP on Software: Example 99

MSDP-VRF: Example 100

Configuring Route Policy for Static RPF: Example 100

Configuring IPv4 Multicast VPN: Example 100

Configuring MVPN to Advertise Routes Between the CE and the PE Using OSPF:

Example 101

Configuring MVPN to Advertise Routes Between the CE and the PE Using BGP:

Example 105

Configuring IPv6 Multicast VPN on the : Example 109

Configuring an IPv6 Multicast VPN to Advertise Routes Between the PE to CE with

EIGRP as the Protocol: Example 110

Configuring an IPv6 Multicast VPN to Advertise Routes Between the PE to CE with

BGP as the Protocol: Example 114

Configuration Examples for MVPN Profiles 119

Configuration Examples for Inband mLDP profiles 119

Configuration Examples for P2MP-TE profiles 120

Configuration examples for Partitioned mLDP profiles 122

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Contents

Configuration Examples for Rosen-mGRE profiles 124

Configuration Examples for Rosen mLDP profiles 126

Configuring Multitopology Routing: Example 129

Configuring MVPN Extranet Routing: Example 130

Configuring the Source MVRF on the Receiver PE Router: Example 130

Configuring the Receiver MVRF on the Source PE Router: Example 132

Configuring Multicast Hub and Spoke Topology: Example 135

Hub and Spoke Non-Turnaround Configuration: Example 135

Hub and Spoke with Turnaround: Example 144

Configuring LSM based MLDP: Examples 150

Additional References 160

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Contents

Cisco IOS XR Multicast Configuration Guide for the Cisco XR12000 Series Router, Release 5.1.x

viii OL-30405-02

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.

SummaryDateRevision

Initial release of this document.September 2013OL-30405-01

Republished with documentation updates for

Release 5.1.1

January 2014OL-30405-02

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, at: http://

www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html.

Subscribe to What's New in Cisco Product Documentation, which lists all new and revised Cisco technical

documentation, as an RSS feed and deliver content directly to your desktop using a reader application. The

RSS feeds are a free service.

Cisco IOS XR Multicast Configuration Guide for the Cisco XR12000 Series Router, Release 5.1.x

OL-30405-02 ix

Cisco IOS XR Multicast Configuration Guide for the Cisco XR12000 Series Router, Release 5.1.x

xOL-30405-02

Preface

Obtaining Documentation and Submitting a Service Request

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