JN0-281 · Question #3
What is the main purpose of Bidirectional Forwarding Detection (BFD)?
The correct answer is A. to detect network path failures. Bidirectional Forwarding Detection (BFD) is a network protocol used to detect failures in the network path between two devices quickly. Path Failure Detection: BFD provides a low-overhead mechanism for detecting failures in forwarding paths across Layer 3 networks. It is much…
Question
What is the main purpose of Bidirectional Forwarding Detection (BFD)?
Options
- Ato detect network path failures
- Bto determine if the forwarding routes are correct
- Cto detect the forwarding protocol
- Dto determine packet round-trip latency
How the community answered
(60 responses)- A90% (54)
- B5% (3)
- C3% (2)
- D2% (1)
Explanation
Bidirectional Forwarding Detection (BFD) is a network protocol used to detect failures in the network path between two devices quickly. Path Failure Detection: BFD provides a low-overhead mechanism for detecting failures in forwarding paths across Layer 3 networks. It is much faster than traditional routing protocol timers and can detect failures within BFD can be integrated with routing protocols like OSPF, BGP, or IS-IS to trigger a faster convergence when a network path goes down.
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