Nortel Networks Optivity Switch Manager for LAN Switch Networks Release 1.0.0.0

IGMP

IGMP allows a host to register group memberships with the local querier router to receive any datagrams sent to this router and targeted to a group with a specific IP Multicast address. The protocol also allows a router to learn the existence of group members on its directly attached networks. The router periodically sends a general query message to each of its local networks. Any host that is a member of any multicasting group identifies itself by a sending a response.