Specifications

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ip igmp snooping vlan immediate-leave
ip igmp snooping vlan immed iate-leave
To enable IGMP immediate-leave processing, use the ip igmp snooping vlan imm ediate-leave
command. To disable immedia te-leave p rocessi ng, use the no form of this command.
ip igmp snooping vlan vlan_ num immediate-leave
no ip igmp snooping vlan vlan_num immediat e-leave
Syntax Description
Defaults I mmediate leave processin g is disabled.
Command Modes Global c onfiguratio n mode
Usage Guidelines You en ter this command in global configuration mode onl y.
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
vlan_num Number of the VLAN; valid values are from 1 to 4094.
immediate-leave Enables immediate leave processing.
Command Description
ip igmp snooping Enables IGMP snooping.
ip igmp snooping vlan mrouter Con figures a Layer 2 interface as a multicast router
interface for a VLAN.
ip igmp snooping vlan static Configures a Layer 2 interface as a member of a group.
show ip igmp interface Displays the information about the IGMP-interface status
and configuration.
show mac-address-ta ble mul ticast Displays information about the multicast MAC address
table.