Dell EMC SmartFabric OS10 User Guide Release 10.5.0

If the IGMP querier does not receive a response to a group-specific or group-and-source query, it sends another query based on the configured querier robustness value. This value determines the number of times the querier sends the message. If the querier does not receive a response, it removes the group from the outgoing interface for the subnet.

IGMP immediate leave reduces leave latency by enabling a router to immediately delete the group membership on an interface after receiving a leave message. Immediate leave does not send group-specific or group-and-source queries before deleting the entry.

To configure IGMP immediate leave:

OS10# configure terminal
OS10# interface vlan14
OS10(conf-if-vl-14)# ip igmp immediate-leave