1. When a multicast application launches on a host, a IGMP Report sends out, this is join message.
2. A multicast router periodically sends out IGMP General Query to 224.0.0.1.
3. A multicast host response the query by sending out IGMP Report to the group address it is listening on.
4. On a LAN, a host uses MRT to suppress its IGMP Report when it sees other host sends IGMP report already.
5. A host sends Leave message when it is no longer interested in recevieing multicase traffic, the router will sends Group-Specific Query when receives the Leavel message, and expecting any hosts still in the group response with IGMP Report
6. If multiple routers on a LAN, the router with lowest IP Address is elected as IGMP querier.
2. A multicast router periodically sends out IGMP General Query to 224.0.0.1.
3. A multicast host response the query by sending out IGMP Report to the group address it is listening on.
4. On a LAN, a host uses MRT to suppress its IGMP Report when it sees other host sends IGMP report already.
5. A host sends Leave message when it is no longer interested in recevieing multicase traffic, the router will sends Group-Specific Query when receives the Leavel message, and expecting any hosts still in the group response with IGMP Report
6. If multiple routers on a LAN, the router with lowest IP Address is elected as IGMP querier.
Comments
Post a Comment