Modifying the MLD 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 done messages sent on the link-scope-all-routers address FF02::2. 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 include this statement at the following hierarchy levels:
The last-member query interval can range from 1 through 1024 seconds.
