Using Internet Group Management Protocol Version 3 (IGMPv3) and Multicast Listener Discovery Protocol Version 2 (MLDv2) for Source-Specific Multicast
RFC 4604
Technical Summary
The Internet Group Management Protocol Version 3 (IGMPv3) and the
Multicast Listener Discovery Protocol Version 2 (MLDv2) are protocols
that allow a host to inform its neighboring routers of its desire to
receive IPv4 and IPv6 multicast transmissions, respectively. Source-
Specific Multicast (SSM) is a form of multicast in which a receiver is
required to specify both the network-layer address of the source and the
multicast destination address in order to receive the multicast
transmission. This document defines the notion of an "SSM-aware" router
and host, and clarifies and, in some cases, modifies the behavior of
IGMPv3 and MLDv2 on SSM-aware routers and hosts to accomodate source-
specific multicast.
Working Group Summary
This document was produced by the MAGMA WG and represents the
consensus of that group.
Protocol Quality
This document was reviewed for the IESG by Margaret Wasserman.