Which method provides failure detection in BFD?
Which method provides failure detection in BFD?
Bidirectional Forwarding Detection (BFD) is designed to provide low-overhead, short-duration failure detection. This allows it to quickly and efficiently identify failures in the forwarding path between network devices while not consuming significant resources.
"BFD Operation BFD provides a low-overhead, short-duration method of detecting failures in the forwarding path between two adjacent routers, including the interfaces, data links, and forwarding planes. BFD is a detection protocol that you enable at the interface and routing protocol levels." https://www.cisco.com/en/US/docs/ios/12_4t/ip_route/configuration/guide/t_bfd.html
B is corerct