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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
78-16201-01
Chapter2Cisco IOS Commands for the Catalyst 4500 Series Switches
ip igmp snooping vlan immediate-leave
ip igmp snooping vlan immediate-leave
To enable IGMP immediate-leave processing, use the ip igmp snooping vlan immediate-leave
command. To disable immediate-leave processing, use the no form of this command.
ip igmp snooping vlan vlan_num immediate-leave
no ip igmp snooping vlan vlan_num immediate-leave
Syntax Description
Defaults Immediate leave processing is disabled.
Command Modes Global configuration
Command History
Usage Guidelines You enter this command in global configuration mode only.
Use the immediate-leave feature only when there is a single receiver for the MAC group for a specific
VLAN.
The immediate-leave feature is supported only with IGMP version 2 hosts.
Examples This example shows how to enable IGMP immediate-leave processing on VLAN 4:
Switch(config)# ip igmp snooping vlan 4 immediate-leave
Switch(config)#
This example shows how to disable IGMP immediate-leave processing on VLAN 4:
Switch(config)# no ip igmp snooping vlan 4 immediate-leave
Switch(config)#
Related Commands ip igmp snooping
ip igmp snooping vlan mrouter
ip igmp snooping vlan static
show ip igmp interface (refer to Cisco IOS documentation)
show mac-address-table multicast
vlan_num Number of the VLAN; valid values are from 1 to 4094.
immediate-leave Enables immediate leave processing.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
12.1(12c)EW Support for extended addressing was added.
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