Contents

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Multicast overview

Introduction to multicast

Information transmission techniques

Multicast features

Multicast benefits and applications

Multicast models

ASM model

SFM model

SSM model

Multicast addresses

IP multicast addresses

Ethernet multicast MAC addresses

Multicast protocols

Layer 3 multicast protocols

Layer 2 multicast protocols

Multicast packet forwarding mechanism

IP multicast architecture

Multicast support for VPNs

Introduction to VPN instances

Multicast application in VPNs

Common notations in multicast

Configuring IGMP snooping

About IGMP snooping

Fundamentals of IGMP snooping

IGMP snooping ports

How IGMP snooping works

IGMP snooping proxying

Protocols and standards

Restrictions and guidelines: IGMP snooping configuration

VLAN-based IGMP snooping tasks at a glance

VSI-based IGMP snooping tasks at a glance

Enabling the IGMP snooping feature

Enabling IGMP snooping

Enabling IGMP snooping globally

Enabling IGMP snooping for VLANs

Enabling IGMP snooping for a VSI

Configuring basic IGMP snooping features

Specifying an IGMP snooping version

Setting the maximum number of IGMP snooping forwarding entries

Configuring static multicast MAC address entries

Setting the IGMP last member query interval

Configuring IGMP snooping port features

Setting aging timers for dynamic ports

Configuring a static member port

Configuring a static router port

Configuring a port as a simulated member host

Enabling fast-leave processing

Disabling a port from becoming a dynamic router port

Configuring the IGMP snooping querier

Enabling the IGMP snooping querier

Enabling IGMP snooping querier election

Configuring parameters for IGMP general queries and responses

Enabling IGMP snooping proxying

Configuring parameters for IGMP messages

Configuring source IP addresses for IGMP messages

Setting the 802.1p priority for IGMP messages

Configuring IGMP snooping policies

Configuring a multicast group policy

Enabling multicast source port filtering

Enabling dropping unknown multicast data

Enabling IGMP report suppression

Setting the maximum number of multicast groups on a port

Enabling multicast group replacement

Enabling host tracking

Setting the DSCP value for outgoing IGMP snooping protocol packets

Display and maintenance commands for IGMP snooping

IGMP snooping configuration examples

Example: Configuring VLAN-based IGMP snooping group polices and simulated joining

Example: Configuring VLAN-based IGMP snooping static ports

Example: Configuring the VLAN-based IGMP snooping querier

Example: Configuring VLAN-based IGMP snooping proxying

Example: Configuring VSI-based IGMP snooping

Example: Configuring VXLAN-based IGMP snooping

Troubleshooting IGMP snooping

Layer 2 multicast forwarding cannot function

Multicast group policy does not work

Configuring PIM snooping

About PIM snooping

Restrictions and guidelines: PIM snooping configuration

PIM snooping tasks at a glance

Enabling PIM snooping

Setting the aging time for global ports after a master/subordinate switchover

About global ports

Restrictions and guidelines

Setting the aging time for global neighbor ports

Setting the aging time for global downstream ports and global router ports

Display and maintenance commands for PIM snooping

PIM snooping configuration examples

Example: Configuring PIM snooping

Troubleshooting PIM snooping

PIM snooping does not work on a Layer 2 device

Configuring multicast VLANs

Multicast VLAN feature

Multicast VLAN methods

Sub-VLAN-based multicast VLAN

Port-based multicast VLAN

Restrictions and guidelines: Multicast VLAN configuration

Configuring a sub-VLAN-based multicast VLAN

Configuring a port-based multicast VLAN

Setting the maximum number of multicast VLAN forwarding entries

Display and maintenance commands for multicast VLAN

Multicast VLAN configuration examples

Example: Configuring sub-VLAN-based multicast VLAN

Example: Configuring port-based multicast VLAN

Configuring multicast routing and forwarding

About multicast routing and forwarding

RPF check mechanism

Usages of static multicast routes

Multicast forwarding across unicast subnets

Restrictions and guidelines: Multicast routing and forwarding configuration

Multicast routing and forwarding tasks at a glance

Prerequisites for multicast routing and forwarding

Enabling IP multicast routing

Configuring static multicast routes

Specifying the longest prefix match principle

Configuring multicast load splitting

Configuring a multicast forwarding boundary

Enabling multicast forwarding between sub-VLANs of a super VLAN

Display and maintenance commands for multicast routing and forwarding

Multicast routing and forwarding configuration examples

Example: Changing an RPF route

Example: Creating an RPF route

Example: Configuring multicast forwarding over a GRE tunnel

Troubleshooting multicast routing and forwarding

Static multicast route failure

Configuring IGMP

About IGMP

IGMP versions

IGMPv1 overview

IGMPv2 enhancements

IGMPv3 enhancements

IGMP SSM mapping

IGMP proxying

IGMP support for VPNs

Protocols and standards

IGMP tasks at a glance

Prerequisites for IGMP

Enabling IGMP

Configuring basic IGMP features

Specifying an IGMP version

Configuring a static group member

Configuring a multicast group policy

Adjusting IGMP performance

Configuring IGMP query and response parameters

Enabling fast-leave processing

Configuring IGMP SSM mappings

Configuring IGMP proxying

Prerequisites for configuring IGMP proxying

Enabling IGMP proxying

Enabling multicast forwarding on a non-querier interface

Configuring multicast load splitting for IGMP proxy interfaces

Enabling IGMP NSR

Setting the DSCP value for outgoing IGMP protocol packets

Display and maintenance commands for IGMP

IGMP configuration examples

Example: Configuring basic IGMP features

Example: Configuring IGMP SSM mapping

Example: Configuring IGMP proxying

Troubleshooting IGMP

No membership information on the receiver-side device

Inconsistent membership information on the devices on the same subnet

Configuring PIM

About PIM

PIM modes

PIM-DM

PIM-SM

BIDIR-PIM

Administrative scoping

PIM-SSM

Relationship among PIM protocols

PIM support for VPNs

Protocols and standards

Restrictions and guidelines: PIM configuration

Configuring PIM-DM

PIM-DM tasks at a glance

Prerequisites for PIM-DM

Enabling PIM-DM

Configuring the state refresh feature

Setting the PIM-DM graft retry timer

Configuring PIM-SM

PIM-SM tasks at a glance

Prerequisites for PIM-SM

Enabling PIM-SM

Configuring static RPs

Configuring C-RPs

Configuring C-BSRs

Configuring a PIM domain border

Disabling BSM semantic fragmentation

Disabling the device from forwarding BSMs out of their incoming interfaces

Enabling Auto-RP listening

Configuring Anycast RP

Configuring multicast source registration

Configuring the switchover to SPT

Configuring BIDIR-PIM

BIDIR-PIM tasks at a glance

Prerequisites for BIDIR-PIM

Enabling BIDIR-PIM

Configuring static RPs

Configuring C-RPs

Configuring C-BSRs

Configuring a PIM domain border

Disabling BSM semantic fragmentation

Disabling the device from forwarding BSMs out of their incoming interfaces

Setting the maximum number of BIDIR-PIM RPs

Enabling Auto-RP listening

Configuring PIM-SSM

PIM-SSM tasks at a glance

Prerequisites for PIM-SSM

Enabling PIM-SM

Configuring the SSM group range

Configuring common PIM features

Common PIM feature tasks at a glance

Configuring a multicast source policy

Configuring a PIM hello policy

Configuring PIM hello message options

Dropping hello messages without the Generation ID option

Configuring common PIM timers

Setting the maximum size of a join or prune message

Setting the DSCP value for outgoing PIM protocol packets

Enabling BFD for PIM

Enabling PIM passive mode

Enabling PIM NSR

Enabling SNMP notifications for PIM

Display and maintenance commands for PIM

PIM configuration examples

Example: Configuring PIM-DM

Example: Configuring non-scoped PIM-SM

Example: Configuring admin-scoped PIM-SM

Example: Configuring BIDIR-PIM

Example: Configuring PIM-SSM

Troubleshooting PIM

A multicast distribution tree cannot be correctly built

Multicast data is abnormally terminated on an intermediate device

An RP cannot join an SPT in PIM-SM

An RPT cannot be built or multicast source registration fails in PIM-SM

Configuring MSDP

About MSDP

How MSDP works

Anycast RP through MSDP

MSDP support for VPNs

Protocols and standards

MSDP tasks at a glance

Prerequisites for MSDP

Enabling MSDP

Creating an MSDP peer

Configuring a static RPF peer

Configuring an MSDP mesh group

Controlling MSDP peering connections

Tearing down MSDP peering connections

Setting the keepalive timer and peer hold timer for MSDP sessions

Setting the MSDP connection retry interval

Enabling MD5 authentication for TCP connection establishment

Configuring SA message-related parameters

Enabling multicast data encapsulation in SA messages

Configuring the originating RP of SA messages

Configuring SA request messages

Configuring SA message policies

Configuring the SA cache mechanism

Configuring MSDP-based Anycast RP

Enabling MSDP NSR

Setting the DSCP value for outgoing MSDP protocol packets

Display and maintenance commands for MSDP

MSDP configuration examples

Example: Configuring PIM-SM inter-domain multicast

Example: Configuring inter-AS multicast by leveraging static RPF peers

Example: Configuring Anycast RP

Example: Configuring SA message filtering

Troubleshooting MSDP

MSDP peers stay in disabled state

No SA entries exist in the device's SA message cache

No exchange of locally registered (S, G) entries between RPs

Configuring multicast VPN

About multicast VPN

Typical network diagram

MVPN scheme

Basic concepts in MDT-based MVPN

How MDT-based MVPN works

Default-MDT establishment

Default-MDT-based delivery

MDT switchover

Inter-AS MDT-based MVPN

MDT-based MVPN inter-AS option A

MDT-based MVPN inter-AS option B

MDT-based MVPN inter-AS option C

M6VPE

Protocols and standards

MDT-based MVPN tasks at a glance

Configuring MDT-based MVPN

Prerequisites for configuring MDT-based MVPN

Enabling IP multicast routing for a VPN instance

Creating an MDT-based MVPN instance

Creating an MVPN address family

Specifying the default-group

Specifying the MVPN source interface

Configuring MDT switchover parameters

Configuring the RPF vector feature

Enabling data-group reuse logging

Setting the DSCP value for outgoing data-group switchover packets

Configuring BGP MDT

Configuring BGP MDT peers or peer groups

Configuring a BGP MDT route reflector

Display and maintenance commands for multicast VPN

Multicast VPN configuration examples

Example: Configuring intra-AS MDT-based MVPN

Example: Configuring intra-AS M6VPE

Example: Configuring MDT-based MVPN inter-AS option B

Example: Configuring MDT-based MVPN inter-AS option C

Troubleshooting MDT-based MVPN

A default-MDT cannot be established

An MVRF cannot be created

Configuring MLD snooping

About MLD snooping

Fundamentals of MLD snooping

MLD snooping ports

How MLD snooping works

MLD snooping proxying

Protocols and standards

Restrictions and guidelines: MLD snooping configuration

VLAN-based MLD snooping tasks at a glance

Enabling the MLD snooping feature

Enabling MLD snooping

Enabling MLD snooping globally

Enabling MLD snooping for VLANs

Enabling MLD snooping for a VSI

Configuring basic MLD snooping features

Specifying an MLD snooping version

Setting the maximum number of MLD snooping forwarding entries

Configuring static IPv6 multicast MAC address entries

Setting the MLD last listener query interval

Configuring MLD snooping port features

Setting aging timers for dynamic ports

Configuring a static member port

Configuring a static router port

Configuring a port as a simulated member host

Enabling fast-leave processing

Disabling a port from becoming a dynamic router port

Configuring the MLD snooping querier

Enabling the MLD snooping querier

Enabling MLD snooping querier election

Configuring parameters for MLD general queries and responses

Enabling MLD snooping proxying

Configuring parameters for MLD messages

Configuring source IPv6 addresses for MLD messages

Setting the 802.1p priority for MLD messages

Configuring MLD snooping policies

Configuring an IPv6 multicast group policy

Enabling IPv6 multicast source port filtering

Enabling dropping unknown IPv6 multicast data

Enabling MLD report suppression

Setting the maximum number of IPv6 multicast groups on a port

Enabling IPv6 multicast group replacement

Enabling host tracking

Setting the DSCP value for outgoing MLD snooping protocol packets

Display and maintenance commands for MLD snooping

MLD snooping configuration examples

Example: Configuring VLAN-based IPv6 group policy and simulated joining

Example: Configuring VLAN-based static ports

Example: Configuring the VLAN-based MLD snooping querier

Example: Configuring VLAN-based MLD snooping proxying

Troubleshooting MLD snooping

Layer 2 multicast forwarding cannot function

IPv6 multicast group policy does not work

Configuring IPv6 PIM snooping

About IPv6 PIM snooping

Restrictions and guidelines: IPv6 PIM snooping configuration

IPv6 PIM snooping tasks at a glance

Enabling IPv6 PIM snooping

Setting the aging time for global ports after a master/subordinate switchover

About global ports

Restrictions and guidelines

Setting the aging time for global neighbor ports

Setting the aging time for global downstream ports and global router ports

Display and maintenance commands for IPv6 PIM snooping

IPv6 PIM snooping configuration examples

Example: Configuring IPv6 PIM snooping

Troubleshooting IPv6 PIM snooping

IPv6 PIM snooping does not work on a Layer 2 device

Configuring IPv6 multicast VLANs

IPv6 multicast VLAN feature

IPv6 multicast VLAN methods

Sub-VLAN-based IPv6 multicast VLAN

Port-based IPv6 multicast VLAN

Restrictions and guidelines: IPv6 multicast VLAN configuration

Configuring a sub-VLAN-based IPv6 multicast VLAN

Configuring a port-based IPv6 multicast VLAN

Setting the maximum number of IPv6 multicast VLAN forwarding entries

Display and maintenance commands for IPv6 multicast VLANs

IPv6 multicast VLAN configuration examples

Example: Configuring sub-VLAN-based IPv6 multicast VLAN

Example: Configuring port-based IPv6 multicast VLAN

Configuring IPv6 multicast routing and forwarding

About IPv6 multicast routing and forwarding

RPF check mechanism

IPv6 multicast forwarding across IPv6 unicast subnets

IPv6 multicast routing and forwarding tasks at a glance

Prerequisites for IPv6 multicast routing and forwarding

Enabling IPv6 multicast routing

Specifying the longest prefix match principle

Configuring IPv6 multicast load splitting

Configuring an IPv6 multicast forwarding boundary

Enabling IPv6 multicast forwarding between sub-VLANs of a super VLAN

Display and maintenance commands for IPv6 multicast routing and forwarding

IPv6 multicast routing and forwarding configuration examples

Example: Configuring IPv6 multicast forwarding over a GRE tunnel

Configuring MLD

About MLD

MLD versions

How MLDv1 works

MLDv2 enhancements

MLD SSM mapping

MLD proxying

MLD support for VPNs

Protocols and standards

MLD tasks at a glance

Prerequisites for MLD

Enabling MLD

Configuring basic MLD features

Specifying an MLD version

Configuring a static group member

Configuring an IPv6 multicast group policy

Adjusting MLD performance

Configuring MLD query and response parameters

Enabling fast-leave processing

Configuring MLD SSM mappings

Configuring MLD proxying

Prerequisites for MLD proxying

Enabling MLD proxying

Enabling IPv6 multicast forwarding on a non-querier interface

Enabling IPv6 multicast load splitting for MLD proxy interfaces

Enabling MLD NSR

Setting the DSCP value for outgoing MLD protocol packets

Display and maintenance commands for MLD

MLD configuration examples

Example: Configuring basic MLD features

Example: Configuring MLD SSM mapping

Example: Configuring MLD proxying

Troubleshooting MLD

No member information exists on the receiver-side device

Inconsistent membership information on the devices on the same subnet

Configuring IPv6 PIM

About IPv6 PIM

IPv6 PIM modes

IPv6 PIM-DM

IPv6 PIM-SM

IPv6 BIDIR-PIM

IPv6 administrative scoping

IPv6 PIM-SSM

Relationship among IPv6 PIM protocols

IPv6 PIM support for VPNs

Protocols and standards

Restrictions and guidelines: IPv6 PIM configuration

Configuring IPv6 PIM-DM

IPv6 PIM-DM tasks at a glance

Prerequisites for IPv6 PIM-DM

Enabling IPv6 PIM-DM

Configuring the state refresh feature

Setting the IPv6 PIM-DM graft retry timer

Configuring IPv6 PIM-SM

IPv6 PIM-SM tasks at a glance

Prerequisites for IPv6 PIM-SM

Enabling IPv6 PIM-SM

Configuring static RPs

Configuring C-RPs

Configuring C-BSRs

Configuring an IPv6 PIM domain border

Disabling BSM semantic fragmentation

Disabling the device from forwarding BSMs out of their incoming interfaces

Configuring Anycast RP

Configuring IPv6 multicast source registration

Configuring the switchover to SPT

Configuring IPv6 BIDIR-PIM

IPv6 BIDIR-PIM tasks at a glance

Prerequisites for IPv6 BIDIR-PIM

Enabling IPv6 BIDIR-PIM

Configuring static RPs

Configuring C-RPs

Configuring C-BSRs

Configuring an IPv6 PIM domain border

Disabling BSM semantic fragmentation

Disabling the device from forwarding BSMs out of their incoming interfaces

Setting the maximum number of IPv6 BIDIR-PIM RPs

Configuring IPv6 PIM-SSM

IPv6 PIM-SSM tasks at a glance

Prerequisites for IPv6 PIM-SSM

Enabling IPv6 PIM-SM

Specifying the IPv6 SSM group range

Configuring common IPv6 PIM features

Common IPv6 PIM feature tasks at a glance

Configuring an IPv6 multicast source policy

Configuring an IPv6 PIM hello policy

Configuring IPv6 PIM hello message options

Dropping hello messages without the Generation ID option

Configuring common IPv6 PIM timers

Setting the maximum size of a join or prune message

Setting the DSCP value for outgoing IPv6 PIM protocol packets

Enabling BFD for IPv6 PIM

Enabling IPv6 PIM passive mode

Enabling IPv6 PIM NSR

Enabling SNMP notifications for IPv6 PIM

Display and maintenance commands for IPv6 PIM

IPv6 PIM configuration examples

Example: Configuring IPv6 PIM-DM

Example: Configuring non-scoped IPv6 PIM-SM

Example: Configuring admin-scoped IPv6 PIM-SM

Example: Configuring IPv6 BIDIR-PIM

Example: Configuring IPv6 PIM-SSM

Troubleshooting IPv6 PIM

A multicast distribution tree cannot be correctly built

IPv6 multicast data is abnormally terminated on an intermediate device

An RP cannot join an SPT in IPv6 PIM-SM

An RPT cannot be built or IPv6 multicast source registration fails in IPv6 PIM-SM

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Conventions

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