Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
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IGMP Fast Leave
When a host wants to leave a multicast group (220.127.116.11), it sends an IGMP leave message to inform its leaving to all routers (18.104.22.168) in the multicast group. When a router receives the leave message, it sends a specific query message to all multicast group (22.214.171.124) members to check if any other hosts are still in the group. Then the router deletes the host’s information. With IGMP fast leave enabled, the device will remove a host’s information from the group member list immediately once it receives a leave message from a host.