Huawei HCIP-Datacom H12-821_V1.0 Question # 81 Topic 9 Discussion

Comprehensive and Detailed Step-by-Step Explanation:

Single-Hop BFD:

Single-hop BFD is used for detecting link failures in directly connected devices.

It usesUDP port 3784for communication.

Multi-Hop BFD:

For multi-hop scenarios, BFD usesUDP port 4784to ensure end-to-end connectivity.

Incorrect Options:

TCP ports 3784 and 4784 (C and D):BFD does not use TCP.