Multicast Routing Protocols
- manages group membership and controls the path that multicast data takes over the network
- updates a multicast routing table (as unicast routing protocols update unicast routing tables)
Multicast Reverse Path Forwarding (mRPF or just RPF) aka Reverse Path Broadcast (RPB)
- often used in tandem with multicast protocols
- the underlying assumptions of RPF check are that:
- the unicast routing table must be correct and converged (i.e. up to date)
- the path used from a sender to a router and the reverse path from the router back to the sender are symmetric
Multicasting Protocols Implementations