Modifying the Last-Member Query Interval

The last-member query interval is the maximum amount of time between group-specific query messages, including those sent in response to leave-group messages. You can lower this interval to reduce the amount of time it takes a router to detect the loss of the last member of a group.

The default last-member query interval is 1 second. To modify this interval, include the query-last-member-interval statement:

query-last-member-interval seconds; 

You can configure this statement at the following hierarchy levels:

• [edit protocols igmp]
• [edit logical-routers logical-router-name protocols igmp]

The last-member query interval can be from 1 through 1024 seconds.