Extend IGMPv3 To Support Router Annoucing Information For Host
Huawei
IGMP is used by IPv4 system to report their multicast group memberships to multicast routers. This document adds support for router annoucing information, that is, the ability for a multicast router to annouce information about a group to host. For example, some hosts may send reports to join a group that do not exist, so the router would send some message to inform the hosts.