Which statement about BFD on Cisco IOS XR Software is true?

By | November 23, 2022

  • A. Cisco IOS XR router must use LDP to route back to the Cisco IOS router to establish the peer relationship.
  • B. Cisco IOS XR Software does not support BFD multihop for IPv4.
  • C. Cisco IOS XR router must use dynamic routing or a static route back to the Cisco IOS router to establish the peer relationship.
  • D. BFD is not compatible between Cisco IOS XR and Cisco IOS Software.
Answer: Option C.
Explanation: 

Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-3/routing/configuration/guide/b-routing-cg-asr9000-63x/b-routing-cg-asr9000-63x_chapter_0100.html

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