Cisco Catalyst 4500 Series Configuration Manual page 384

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.
Syntax Description
vlan_num
immediate-leave
Command Default Immediate leave processing is disabled.
Command Modes
Global configuration mode
Command History Release
12.1(8a)EW
12.1(12c)EW
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
The following example shows how to enable IGMP immediate-leave processing on VLAN 4:
Switch(config)# ip igmp snooping vlan 4 immediate-leave
Switch(config)#
The following 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 Command
ip igmp snooping
ip igmp snooping vlan mrouter
ip igmp snooping vlan static
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
2-344
ip igmp snooping vlan vlan_num immediate-leave
no ip igmp snooping vlan vlan_num immediate-leave
Number of the VLAN; valid values are from 1 to 4094.
Enables immediate leave processing.
Modification
This command was introduced on the Catalyst 4500 series switch.
Support for extended addressing was added.
Description
Enables IGMP snooping.
Configures a Layer 2 interface as a multicast router
interface for a VLAN.
Configures a Layer 2 interface as a member of a group.
Chapter 2