Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 391

Which of the following statements regarding the use of Bidirectional Forwarding Detection (BFD) in a Cisco SD-WAN environment are true?

Answer options

• A. BFD cannot be disabled on SD-WAN routers.
• B. OSPFv3 is not supported with BFD.
• C. In addition to link failure detection, it is also used to measure loss and latency used by application aware routing.
• D. Is not typically enabled for OMP.
• E. Does not support BGP.

Correct answer: A, C

Explanation

Option A is correct because BFD is an integral feature that cannot be disabled on SD-WAN routers. Option C is also correct as BFD is utilized not only for link failure detection but also for measuring loss and latency, which is essential for application aware routing. The other options are incorrect because BFD supports OSPFv3, can be used with OMP, and is compatible with BGP.