Users Guide

IGMP commands
clear ip igmp groups
Clears entries from the group cache table.
Syntax
clear ip igmp [vrf vrf-name] groups
Parameters vrf vrf-name—Enter the keyword vrf, then the name of the VRF.
Default None
Command Mode EXEC
Usage
Information
None
Example
OS10# clear ip igmp groups
Supported
Releases
10.4.3.0 or later
ip igmp immediate-leave
Enables IGMP immediate leave.
Syntax
ip igmp immediate-leave
Parameters None
Default None
Command Mode INTERFACE
Usage
Information
The querier sends some group-specific queries when it receives a leave message before deleting the
group from the membership database. If you need to immediately delete a group from the membership
database, use the ip igmp immediate-leave command. The no version of this command disables
IGMP immediate leave.
Example
OS10# configure terminal
OS10# interface vlan11
OS10(conf-if-vl-11)# ip igmp immediate-leave
Supported
Releases
10.4.3.0 or later
ip igmp last-member-query-interval
Changes the last member query interval, which is the maximum response time included in the group-specific queries sent in
response to leave group messages. This last-member-query-interval is the interval between group-specific query messages.
Syntax
ip igmp last-member-query-interval milliseconds
Parameters milliseconds—Enter the amount of time in milliseconds to configure the time interval between group-
specific query messages. The range is from 100 to 65535.
Default 1000 milliseconds
Command Mode INTERFACE
Usage
Information
None
780 Multicast