R3303-HP HSR6800 Routers IP Multicast Command Reference

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Usage guidelines
IP multicast routing must be enabled in the corresponding instance before this command can take effect.
IGMP must be enabled on an interface before any other IGMP feature configured on the interface can
take effect.
Examples
# Enable IP multicast routing on the public network, and enable IGMP on GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] multicast routing-enable
[Sysname] interface gigabitethernet 2//1
[Sysname-GigabitEthernet2/1/1] igmp enable
Related commands
• igmp
• multicast routing-enable
igmp fast-leave
Use igmp fast-leave to configure fast-leave processing on the current interface.
Use undo igmp fast-leave to disable fast-leave processing on the current interface.
Syntax
igmp fast-leave [ group-policy acl-number ]
undo igmp fast-leave
Default
Fast-leave processing is disabled. Namely, the IGMP querier sends IGMP group-specific queries or IGMP
group-and-source-specific queries after receiving an IGMP leave message from a host, instead of sending
a leave notification directly to the upstream.
Views
Interface view
Default command level
2: System level
Parameters
acl-number: Specifies a basic ACL number in the range of 2000 to 2999. The fast-leave processing
function takes effect only on the multicast groups that match the permit statement in the specifies ACL. If
you do not include this option in your command, this command takes effect on all multicast groups.
Usage guidelines
For a device that supports both IGMP snooping and IGMP, the igmp fast-leave command cannot be
used on VLAN-interface view. To enable fast-leave processing on a specific Layer 2 port, use the
igmp-snooping fast-leave command or the fast-leave (IGMP-snooping view) command, because these
two commands are effective on VLANs with IGMP enabled on their VLAN interfaces.
Related commands
• fast-leave (IGMP view)
• fast-leave (IGMP-snooping view)