BFD for OSPF Session Creation and Deletion

All Open Shortest Path First (OSPF) neighbors are associated with an interface. When BFD is enabled on an interface and at the global level, BFD sessions are created for all OSPF neighbors that are in greater than the 2-Way state.

Each interface can have its own BFD timers. OSPF does not influence the BFD timer value for the session. The BFD module uses the configured BFD value or the default value when creating the session. A single-hop session is created for OSPF neighbors.

Note

Note

BFD for OSPF sessions are deleted in the following scenarios.