Hi! We are trying to set up BGP-BFD on a CER2024 running version 6.2.0aT183. Our configuration looks like this:
bfd sh-session-setup-delay 5 interface ethernet 1/6 enable no fdp enable no cdp enable no spanning-tree sflow forwarding vlan 3000 name "Vlan 3000" tagged ethe 1/6 router-interface ve 3000 vlan 3001 name "Vlan 3001" tagged ethe 1/6 router-interface ve 3001 interface ve 3000 bfd interval 2000 min-rx 2000 multiplier 4 ip address 1.1.1.1/31 ! SSH@c13-1#show run int ve 3001 interface ve 3001 bfd interval 2000 min-rx 2000 multiplier 4 ip address 2.2.2.1/31 router bgp local-as 15594 bfd-enable auto-shutdown-new-neighbors default-local-preference 110 fast-external-fallover neighbor 1.1.1.2 remote-as 12345 neighbor 1.1.1.2 password 2 SECRET neighbor 1.1.1.2 bfd min-tx 200 min-rx 200 multiplier 4 neighbor 1.1.1.2 bfd holdover-interval 5 neighbor 2.2.2.2 remote-as 12345 neighbor 2.2.2.2 password 2 SECRET neighbor 2.2.2.2 bfd min-tx 200 min-rx 200 multiplier 4 neighbor 2.2.2.2 bfd holdover-interval 5 address-family ipv4 unicast neighbor 1.1.1.2 prefix-list BGP-3000-IN in neighbor 1.1.1.2 prefix-list BGP-3000-OUT out neighbor 2.2.2.2 prefix-list BGP-3001-IN in neighbor 2.2.2.2 prefix-list BGP-3001-OUT out According to our peer (Juniper MX system) they are only running BGP-BFD, not BFD on the interface. We tried our configuration with or without BFD on the interfaces ve3000/ve3001. In any case, "show ip bgp neighbors $IP" always says "BFD: Disabled". "show bfd" says: BFD State: ENABLED Version: 1 Use PBIF Assist: Y SH setup delay 5 MH setup delay 0 Current Registered Protocols: bgp/0 static/0 All Sessions: Current: 0 Maximum Allowed: 40 Maximum Exceeded Count: 0 Maximum TX/RX Sessions Allowed on LP: 40 Maximum Session Exceeded Count for LPs: 0 LP Tx/Rx Sessions LP Tx/Rx Sessions 1 0/0 2 0/0 BFD Enabled ports count: 2 Port MinTx MinRx Mult Sessions ve 3000 2000 2000 4 0 ve 3001 2000 2000 4 0 show bfd neighbors No BFD Neighbor found. show bfd applications Registered Protocols Count: 2 Protocol VRFID Parameter HoldoverInterval bgp 0 0 0 static 0 1 0 We are not sure how to configure and/or debug BFD. Various "debug bfd *" settings did not show any output. Does anybody have any ideas about this? Regards Cenk
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