Track 2 - Internet Routing and IP Network management (7-Oct-96)

Multicast

3) Protocols

B) PIM Sparse protocol

  1. Join toward Rendezvous-point

  2. for low traffic groups, can reduce forwarding state by keeping on a single per-group tree (subsumes CBT)

  3. Requires Changes to IGMP (Join, Leave)

  4. CBT has pre-defined Rendezvous-point, PM defines by configuration