QuestionQ90

Multicast Routing

What two conditions must be satisfied before separate ISPs can provide interdomain multicast routing?

Choose two
  • A Each ISP must configure MSDP to connect its individual multicast administrative domain to the domains at other ISPs.
  • B Each ISP must dedicate a single router to handle multicast traffic between providers.
  • C Each ISP must replace its RP assignment with a global RP.
  • D Each ISP must configure its network to use PIM-DM.
  • E Each ISP must support intradomain multicast routing.
Explanation

MSDP lets rendezvous points in separate PIM-SM administrative domains exchange active-source information, enabling multicast traffic between ISP domains while each ISP retains its own RP. Each ISP must also have intradomain multicast routing in place so multicast traffic can be forwarded within its own network.

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