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Configuration Guide - IP Multicast

S7700 and S9700 V200R010C00

This document describes IP multicast basics and how to configure IP multicast features, including IGMP/MLD, PIM (IPv4&IPv6), MSDP, multicast VPN, Layer 3 multicast CAC, Layer 2 multicast CAC, IGMP/MLD snooping, and multicast VLAN, IPv4&IPv6 multicast route management, static multicast MAC address, multicast network.
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Monitoring Multicast Routing and Forwarding

Monitoring Multicast Routing and Forwarding

Context

During routine maintenance, run the following commands in any view to check the running status of the multicast forwarding and routing tables.

Procedure

  • Run the display multicast [ vpn-instance vpn-instance-name | all-instance ] boundary [ group-address [ mask | mask-length ] ] [ interface interface-type interface-number ] command to check the multicast boundary configured on an interface.
  • Run the display multicast [ vpn-instance vpn-instance-name | all-instance ] forwarding-table [ group-address [ mask { group-mask | group-mask-length } ] | source-address [ mask { source-mask | source-mask-length } ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { include | exclude | match } { interface-type interface-number | register | none } | { statistics | verbose } ] * command to check the MFIB.
  • Run the display multicast routing-table [ vpn-instance vpn-instance-name ] static [ config ] [ source-address { mask-length | mask } ] command to check the multicast static routing table.
  • Run either of the following commands to check the multicast routing table:

    • display multicast { vpn-instance vpn-instance-name | all-instance } routing-table [ group-address [ mask { group-mask | group-mask-length } ] | source-address [ mask { source-mask | source-mask-length } ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { include | exclude | match } { interface-type interface-number | register | none } ] * [ outgoing-interface-number [ number ] ]

    • display multicast routing-table [ group-address [ mask { group-mask | group-mask-length } ] | source-address [ mask { source-mask | source-mask-length } ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { include | exclude | match } { interface-type interface-number | vpn-instance vpn-instance-name | register | none } ] * [ outgoing-interface-number [ number ] ]

  • Run the display multicast [ vpn-instance vpn-instance-name | all-instance ] rpf-info source-address [ group-address ] [ rpt | spt ] command to check the reverse path forwarding (RPF) route.
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Updated: 2019-08-21

Document ID: EDOC1000141903

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