Bidirectional Forwarding Detection (BFD) Strict Mode for OSPF

Junos OS supports BFD strict mode for OSPF. The BFD strict mode for OSPF enables a router to prevent establishing OSPF adjacency until a BFD session is established. This helps in faster and more reliable connection with the peer devices. To enable this feature, both the devices should support BFD strict-mode. To configure BFD strict-mode, use set strict-bfd at the [edit protocols ospf area area_id interface interface_name] hierarchy level. You can also configure a hold down interval to delay the sending of session UP notification to the BFD client which helps in achieving a more stable connection. To configure a hold down interval, use set holddown-interval holddown-interval at the [edit protocols ospf area area_id interface interface_name bfd-liveness-detection] hierarchy level.