300-410 ENARSI: Implementing Cisco Enterprise Advanced Routing and ServicesDemo

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QuestionQ464

VPN Technologies

Which two protocols does a P router use to transfer VPN traffic between PE routers in an MPLS network?

Choose two
  • A LDP
  • B RSVP
  • C MP-BGP
  • D BGP
  • E OSPF
Explanation

LDP and RSVP are MPLS signaling protocols enabled on provider (P) routers to establish the label-switched paths that carry VPN traffic between PE routers. MP-BGP distributes VPN routing information at the PE edge rather than serving as the P-router transport signaling protocol.

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