The linkage between BFD and OSPF uses BFD's rapid sensing of link failures to speed up the OSPF protocol's response to network topology changes, which can further accelerate the OSPF convergence…

Question

Options

• ATRUE
• BFALSE

• A
  83% (30)
• B
  17% (6)

Explanation

A is correct because BFD (Bidirectional Forwarding Detection) is specifically designed as a lightweight, fast failure-detection protocol that operates independently of routing protocols. When integrated with OSPF, BFD detects link failures in milliseconds (typically 50–300ms depending on timer configuration) and immediately notifies OSPF, rather than waiting for OSPF's own Hello/Dead timer mechanism which can take seconds (default Dead interval is 40 seconds).

B is wrong because it denies a well-documented and widely deployed feature - BFD-OSPF integration is a standard mechanism in modern networks precisely because OSPF's native failure detection is too slow for high-availability environments.

Memory tip: Think of BFD as OSPF's "early warning system" - OSPF is the firefighter, but BFD is the smoke detector. The detector (BFD, milliseconds) alerts the firefighter (OSPF) far faster than OSPF would notice the fire on its own (seconds via Dead timers).

No community discussion yet for this question.