R21xx-HP FlexFabric 11900 IP Multicast Command Reference

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Default
IGMP snooping is disabled in a VLAN.
Views
VLAN view
Predefined user roles
network-admin
Usage guidelines
You must enable IGMP snooping globally before you enable IGMP snooping for a VLAN.
Examples
# Enable IGMP snooping globally and for VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
Related commands
igmp-snooping
igmp-snooping fast-leave
Use igmp-snooping fast-leave to enable IGMP snooping fast-leave processing on a port.
Use undo igmp-snooping fast-leave to disable IGMP snooping fast-leave processing on a port.
Syntax
igmp-snooping fast-leave [ vlan vlan-list ]
undo igmp-snooping fast-leave [ vlan vlan-list ]
Default
IGMP snooping fast-leave processing is disabled on a port.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
vlan vlan-list: Specifies a space-separated list of up to ten VLAN items. Each item specifies a VLAN by
its ID or a range of VLANs in the form of start-vlan-id to end-vlan-id. The VLAN ID is in the range of 1 to
4094. If this option is not specified, this command takes effect for all VLANs.
Usage guidelines
When an IGMP leave message arrives at a port that has the IGMP snooping fast-leave processing
feature enabled, the switch immediately removes that port from the forwarding entry for the multicast
group specified in the message.