What Is BFD? - Ruijie Community - Powered by Discuz!

The Bidirectional Forwarding Detection(BFD) enables a network device to rapidly detect a failure occurring in the communication with a neighbor device and switch traffic to a backup link to accelerate network convergence, thereby ensuring service continuity, reducing impact of device failures or link failures on services, and improving network availability. BFD packets are classified into control packets and echo packets.