510 IGMP Snooping Configuration Commands
that interface. IGMP Snooping functionality is re-enabled if you disable routing
or remove port-channel (LAG) membership from an interface that has IGMP
Snooping enabled.
no set igmp
interfacemode
This command disables IGMP Snooping on all interfaces.
set igmp fast-leave This command enables or disables IGMP Snooping fast-leave admin mode on a
selected interface, a range of interfaces, or a VLAN. Enabling fast-leave allows
the switch to immediately remove the layer 2 LAN interface from its forwarding
table entry upon receiving an IGMP leave message for that multicast group
without first sending out MAC-based general queries to the interface.
You should enable fast-leave admin mode only on VLANs where only one host is
connected to each layer 2 LAN port. This prevents the inadvertent dropping of
the other hosts that were connected to the same layer 2 LAN port but were still
interested in receiving multicast traffic directed to that group. Also, fast-leave
processing is supported only with IGMP version 2 hosts.
Default disabled
Format
set igmp interfacemode
Mode Global Config
Format
no set igmp interfacemode
Mode Global Config
Default disabled
Format
set igmp fast-leave
[
vlan_id
]
Mode Interface Config
Interface Range
VLAN Config
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