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Configuration Guide - IP Multicast

S7700 and S9700 V200R013C00

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, IPv4 PIM, IPv6 PIM, MSDP, multicast VPN, layer 3 multicast CAC, IPv4 multicast route management, IPv6 multicast route management, IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN replication, layer 2 multicast CAC, multicast network management.
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Clearing MLD Group Information

Clearing MLD Group Information

Context

After MLD group entries are cleared, group members may fail to receive multicast data. Therefore, exercise caution when clearing MLD group information.

Procedure

  • Run the reset mld explicit-tracking { all | interface interface-type interface-number [ host ipv6-host-address [ group ipv6-group-address [ source ipv6-source-address ] ] ] } command in the user view to remove hosts that dynamically join a multicast group using MLD from an interface.
  • Run the following commands in the user view to clear multicast group entries that are dynamically generated on an interface.

    • reset mld group all

    • reset mld group interface interface-type interface-number { all | ipv6-group-address [ ipv6-group-mask-length ] [ ipv6-source-address [ ipv6-source-mask-length ] ] }

  • Run the following commands in the user view to clear multicast group entries established with MLD SSM mapping.

    • reset mld group ssm-mapping all

    • reset mld group ssm-mapping interface interface-type interface-number { all | ipv6-group-address [ ipv6-group-mask-length ] }

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Updated: 2019-04-08

Document ID: EDOC1100065742

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