This sets how often the device's IGMP proxy sends general queries downstream to discover which receivers still want each multicast group, with a default of 125 seconds matching the standard IGMP querier interval. An admin wanting faster detection of receivers leaving a group, at the cost of more query traffic, could shorten this from the 125-second default, though the description notes actual timing may slip longer under heavy switch load. A value of 60 would have the device querying twice as often as the default, tightening how quickly stale group memberships get cleaned up.