Ip Igmp Snooping Vlan Immediate-Leave - Cisco Catalyst 2960 Command Reference Manual
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ip igmp snooping vlan immediate-leave
ip igmp snooping vlan immediate-leave
Use the ip igmp snooping immediate-leave global configuration command to enable Internet Group
Management Protocol (IGMP) snooping immediate-leave processing on a per-VLAN basis. Use the no
form of this command to return to the default setting.
Syntax Description
vlan-id
Defaults
IGMP immediate-leave processing is disabled.
Command Modes
Global configuration
Command History
Release
12.2(25)FX
Usage Guidelines
VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP
snooping.
You should configure the Immediate- Leave feature only when there is a maximum of one receiver on
every port in the VLAN. The configuration is saved in NVRAM.
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 1:
Switch(config)# ip igmp snooping vlan 1 immediate-leave
You can verify your settings by entering the show ip igmp snooping privileged EXEC command.
Related Commands
Command
ip igmp snooping report-suppression
show ip igmp snooping
show ip igmp snooping groups
show ip igmp snooping mrouter
show ip igmp snooping querier
Catalyst 2960 Switch Command Reference
2-124
ip igmp snooping vlan vlan-id immediate-leave
no ip igmp snooping vlan vlan-id immediate-leave
Enable IGMP snooping and the Immediate-Leave feature on the specified
VLAN. The range is 1 to 1001 and 1006 to 4094.
Modification
This command was introduced.
Chapter 2
Catalyst 2960 Switch Cisco IOS Commands
Description
Enables IGMP report suppression.
Displays the snooping configuration.
Displays IGMP snooping multicast information.
Displays the IGMP snooping router ports.
Displays the configuration and operation information for
the IGMP querier configured on a switch.
78-16882-01
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