Bidirectional Forwarding Detection (BFD)

Bidirectional Forwarding Detection according to RFC 5880 is a simple Hello protocol to detect the loss of a connection between two routers. Hello packets are sent by both routers at a set interval. If these Hello packets are not received within a certain interval, the connection is assumed to be broken. In combination with BGP, BFD allows broken connections to be detected more quickly, since the BFD timers can be significantly shorter than the BGP timers.

Adjusting the timer interval allows lost connections to be detected faster or slower. The lower the timer interval, the faster connection losses are detected.

Note:

In LANconfig you configure BFD under Routing protocols > General > Bidirectional Forwarding Detection (BFD).





BFD operating
Activates or deactivates BFD globally

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