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Some static bfd session will be removed after reload: - Configure under Nexus 3548: ip route static bfd Ethernet1/44 X.X.X.2 ip route static bfd Ethernet1/45 Y.Y.Y.2 interface Ethernet1/44 bfd interval 300 min_rx 300 multiplier 3 interface Ethernet1/45 bfd interval 300 min_rx 300 multiplier 3 - Before reload, there are two bfd session for static route: N3548C# show bfd neighbors OurAddr NeighAddr LD/RD RH/RS Holdown(mult) State Int X.X.X.1 X.X.X.2 1090519041/1 Up 4551(3) Up Eth1/44 Y.Y.Y.1 Y.Y.Y.2 1090519042/36 Up 5115(3) Up Eth1/45 - After reload, there is only one bfd session for Eth1/44, and removed for Eth1/45: N3548C# show bfd neighbors OurAddr NeighAddr LD/RD RH/RS Holdown(mult) State Int X.X.X.1 X.X.X.2 1090519041/1 Up 4530(3) Up Eth1/44
Nexus 3500 configured with static BFD session
Default interface configuration and re-configure
- Check "show system internal bfd event-history logs", the Eth1/45 bfd session is not create after reload: show system internal bfd event-history logs 2002 Nov 29 12:02:33.583242: E_DEBUG bfd_sess_remove_all_sessions_intf(2585): In remove all sessions for app 1:545 on Eth1/44 >>>>>>normal remove 2002 Nov 29 12:02:33.581133: E_DEBUG bfd_sess_remove_all_sessions_intf(2585): In remove all sessions for app 1:545 on Eth1/45 >>>>>>normal remove 2002 Nov 29 12:02:33.596808: E_DEBUG bfd_sess_create_session(2282): Creating session 0x41000001 [0 1 if Eth1/44 0x1a02b000 <<<<<<<<<<< bfd_sess_create_session for Eth1/44 is present, but is missing Eth1/45.
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