An engineer is working on an OSPF network design and wants to minimize the failure detection time and the impact on the router CPU.
Witch technology accomplishes this goal?
A . LSA pacing
B . LSA delay interval
C . BFD
D . Fast hellos
Answer: C
Explanation:
BFD (Bidirectional Forwarding Detection) is a detection protocol designed to provide fast forwarding path failure detection times for all media types, encapsulations, topologies, and routing protocols. In addition to fast forwarding path failure detection, BFD provides a consistent failure detection method for network administrators. Because the network administrator can use BFD to detect forwarding path failures at a uniform rate, rather than the variable rates for different routing protocol hello mechanisms, network profiling and planning will be easier, and reconvergence time will be consistent and predictable.
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