Role of RP in PIM Sparse Mode
Question
What is the role of the RP in PIM sparse mode?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.C.
In Protocol Independent Multicast (PIM) Sparse mode, the RP (Rendezvous Point) plays a crucial role in building and maintaining the multicast distribution tree for shared multicast traffic.
Option A is incorrect as the RP does not maintain default aging timeouts for multicast streams. Instead, the multicast routers along the path to the receivers maintain the timeout for multicast streams.
Option B is incorrect as the RP is not just a control-plane node. It also receives and forwards multicast packets.
Option C is correct. The RP is the multicast router that serves as the root of the PIM-SM shared multicast distribution tree. It is responsible for forwarding multicast traffic from the source towards the receivers.
Option D is incorrect as the RP does not respond to PIM join messages with the source of a requested multicast group. It is the upstream router that sends join messages towards the RP to establish the multicast distribution tree.
In summary, the correct answer is C: The RP is the multicast router that is the root of the PIM-SM shared multicast distribution tree.
