An operator needs to verify that BFD, not the 300-second BGP hold timer, protects an edge session. $ ze config show demos/terminal/bfd-failover/ze.conf bfd $ ze config show demos/terminal/bfd-failover/ze.conf bgp peer edge-peer connection $ ze config show demos/terminal/bfd-failover/ze.conf bgp peer edge-peer timer The daemon configuration shows the 300 ms BFD profile, multiplier 3, single-hop binding, and 300-second BGP hold time. $ ze cli -c "show bfd sessions" The running control plane shows the complete Up BFD session. $ date -u +%T; ip link set bfd-p down $ ze cli -c "show bfd sessions" $ ze cli -c "show bgp peer list" Five seconds after the kernel link is cut, the full command output shows no live BFD session and BGP has left Established. $ ip link set bfd-p up $ ze cli -c "show bgp peer list" The same peer returns to Established after the link is restored. Every protocol result comes directly from `ze cli`; the lab helper is used only to create and reset the isolated FRR peer.