QuestionQ362

VPN Technologies

Which Layer 3 VPN attribute causes customer routes to be installed in the VRF?

  • A RD
  • B RT
  • C extended-community
  • D MPLS label
Explanation

A route target (RT) controls VPN route import into a VRF: a VPN route is installed when its RT matches an RT in that VRF’s import list. A route distinguisher makes VPN prefixes unique, while MPLS labels support packet forwarding.

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