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

By Cisco · Question Mode

QuestionQ250

Layer 3 Technologies

Which statement regarding route distinguishers in an MPLS network is true?

  • A Route distinguishers allow multiple instances of a routing table to coexist within the edge router.
  • B Route distinguishers are used for label bindings.
  • C Route distinguishers make a unique VPNv4 address across the MPLS network.
  • D Route distinguishers define which prefixes are imported and exported on the edge router.
Explanation

A route distinguisher is combined with an IPv4 prefix to create a unique VPNv4 address, so overlapping customer address prefixes can be advertised across the MPLS VPN network without ambiguity.

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