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Configuration Guide - IP Multicast

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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Configuring Fast Leave for Member Ports

Configuring Fast Leave for Member Ports

Context

When the switch enabled with the fast leave function receives an MLD Done message from a member port, the switch deletes the forwarding entry corresponding to the member port from the multicast forwarding table immediately, without waiting for the aging of the forwarding entry.

NOTE:

When each interface in a VLAN is connected to only one host, you can enable fast leave for interfaces in the VLAN.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run vlan vlan-id

    The VLAN view is displayed.

  3. Run mld snooping prompt-leave [ group-policy { acl6-number | acl6-name acl6-name } ]

    Fast leave for member ports is configured.

    By default, fast leave for member ports is disabled.

    You can specify the group-policy acl6-number parameter to restrict the multicast group that an interface fast leaves. In this situation, you need to configure an ACL6 and define ACL6 rules. The default ACL6 rule permit is valid for all multicast groups. After configuring a rule that permits a specified multicast group, run the rule deny source any command to deny all the other multicast groups. For details about ACL6 configuration, see "ACL Configuration" in CloudEngine 12800 and 12800E Series Switches Configuration Guide - Security.

  4. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100074724

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