What is the function of the multicast Reverse Path Forwarding check?
A) It allows for a loop-free distribution tree from the source to receivers.
B) It serves as an Auto RP Mapping agent.
C) It prevents bootstrap messages from reaching all routers.
D) It is used to discover and announce RP-set information.

Question

Quizplus · Accepted Answer

The multicast Reverse Path Forwarding (RPF) check ensures that multicast traffic follows a loop-free path by verifying that the incoming interface of a multicast packet is the expected interface based on the unicast routing table. This helps maintain a loop-free distribution tree from the source to receivers.

What Is the Function of the Multicast Reverse Path Forwarding