By creating BFD sessions on both ends of an IP link, you can detect faults on the link rapidly. Static BFD sessions support one-hop detection and multi-hop detection. You can use the detection method according to the network of a session.
When you create a BFD session, adjust the BFD control packet sending interval, receiving interval, and local detection multiple of the device according to the network status and performance. The parameter adjustment does not affect the status of existing BFD sessions.
By configuring the auto-negotiation of static discriminators, you can enable the connection to the device that establishes BFD sessions dynamically. The auto-negotiation function of static discriminators is mainly applied to static routes.
By configuring session descriptions when you create static BFD sessions, you can better understand the configurations. Generally, a description explains the devices on both ends of a session.
The status change of the static BFD session will take effect after the Wait to Recovery (WTR) time, which avoids the affects caused by BFD session flapping on upper-layer protocols.