Seamless Bidirectional Forwarding Detection (SBFD) can be configured to implement rapid link fault detection.
BFD techniques are mature. However, when a large number of BFD sessions are configured to detect links, the negotiation time of the existing BFD state machine is lengthened. In this situation, SBFD can be configured. It is a simplified BFD state machine that shortens the negotiation time and improves network-wide flexibility.