End-of-Life (EoL)
The firewall now supports Bidirectional Forwarding Detection (BFD), a protocol that recognizes a failure in the bidirectional path between two routing peers. BFD failure detection provides a faster failover than can be achieved by link monitoring or frequent dynamic routing health checks, such as Hello packets or heartbeats. Mission-critical data centers and networks that require high availability and extremely fast failover need the extremely fast failure detection that BFD provides. PAN-OS supports BFD on PA-3000 Series, PA-5000 Series, PA-7000 Series, and VM-Series firewalls starting with PAN-OS 7.1.
Configure BFD
Create a BFD profile. A BFD profile is where you configure the BFD mode, transmit and receive intervals, detection time multiplier, and hold time.
Enable BFD for a static route or a routing protocol. For a virtual router, you can Configure BFD for a static route, the RIP, OSPF, or BGP routing protocols, or for a single interface where you are running the routing protocol.

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