QuestionQ49

Multicast Routing

What is one purpose of a default Multicast Distribution Tree?

  • A to handle high-bandwidth source streams
  • B to define the RP for PIM sparse mode and the different leafs
  • C to offload traffic from data MDT
  • D to support control traffic between different VRFs
Explanation

A default MDT supplies the shared PIM sparse-mode multicast tree for an MVPN, establishing the RP and the participating leaf routers. It carries multicast control traffic and can carry low-rate data traffic; high-bandwidth flows are moved to data MDTs.

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