QuestionQ12

Layer 3 VPNs

What is a VRF’s primary function on a router?

  • A It enables the router to support multiple separate routing tables, which allows the device to handle overlapping IP addresses.
  • B It enables a router to run BGP and a distance vector routing protocol at the same time, which allows it to serve as a VPN endpoint between remote sites.
  • C It enables a router to configure VLANs locally, which provides segregation between networks.
  • D It enables the router to provide faster switching through the network by using labels to identify the input and output interfaces for neighbor routers.
Explanation

A VRF isolates routing and forwarding into separate routing tables on the same router, allowing distinct networks to use overlapping IP address ranges.

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