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AR 387 BFD Failure Detection Mechanism - pc_evans - 02-16-2024
BFD Detects path failures between 2 adjacent routers. A routing protocol failure could be a result of a misconfiguration.
https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fs_bfd.html
BFD 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.
https:// www. examguides. com / CCNP-ENARSI/ ccnp-enarsi-cramnotes-4.htm
bfd interval milliseconds min_rx milliseconds multiplier interval-multiplier
https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fs_bfd.html#wp1053749
The Bidirectional Forwarding Detection (BFD) protocol is a simple hello mechanism that detects failures in a network. Hello packets are sent at a specified, regular interval. A neighbor failure is detected when the routing device stops receiving a reply after a specified interval.
https://www.juniper.net/documentation/us/en/software/junos/high-availability/topics/topic-map/bfd.html#:~:text=BFD%20for%20BGP-,The%20Bidirectional%20Forwarding%20Detection%20(BFD)%20protocol%20is%20a%20simple%20hello,reply%20after%20a%20specified%20interval.
RE: AR 387 BFD Failure Detection Mechanism - help_desk - 02-17-2024
The Answer has been corrected. Thank you!