Overview of PIM-SM (IPv4)

The key mechanisms of PIM-SM are neighbor discovery, Designated router (DR) election, assert, Rendezvous Point (RP) discovery, join, register, shortest path tree (SPT) switchover, and prune.

Overview of PIM-SM: In a PIM-SM network, group members are sparsely distributed and almost all the network segments do not have group members resided. Therefore, a Rendezvous Point (RP) is a forwarding core of the PIM-SM network. All PIM devices in the PIM-SM network must know the location of the RP and the RP collects information about both group members and multicast sources.

PIM-SM Features Supported: The system can work normally with default PIM-SM parameters. You are also allowed to adjust parameters related to neighbor discovery, forwarding, DR, Rendezvous Point (RP), join, register, and assert. In addition, you can configure various filtering policies and the PIM silent function to enhance the PIM-SM security. PIM-SM supports Source-Specific Multicast (SSM), PIM GR, and shortest path tree (SPT) switchover.