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VLAN has gone down. Reason: Echo Function Failed.-BFD

kp-tkr2014
Level 1
Level 1

Hi, 

I am getting the below  error  from nexus 9k  

here 192.168.2.1 is a fortigate firewall 

2020 Nov 21 03:23:09 SW1 %BFD-5-SESSION_CREATED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been created
2020 Nov 21 03:23:19 SW1 %BFD-5-SESSION_REMOVED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been removed
2020 Nov 21 03:23:33 SW1 %BFD-5-SESSION_MOVED: BFD session 0x410004bd: Installed on LC 2
2020 Nov 21 03:23:33 SW1 %BFD-5-SESSION_CREATED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been created
2020 Nov 21 03:23:39 SW1 %BFD-5-SESSION_STATE_UP: BFD session 1090520253 to neighbor 192.168.2.1on interface VLAN100 is up.
2020 Nov 21 03:23:39 SW1 %BFD-5-SESSION_STATE_DOWN: BFD session 1090520253 to neighbor 192.168.2.1on interface VLAN100 has gone down. Reason: Echo Function Failed.
2020 Nov 21 03:23:39 SW1 %BFD-5-SESSION_REMOVED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been removed
2020 Nov 21 03:23:42 SW1 %OSPF-4-NEIGH_ERR: ospf-1 [15365] (default) Neighbor 192.168.2.1not found, packet dropped
2020 Nov 21 03:23:55 SW1 %BFD-5-SESSION_MOVED: BFD session 0x410004be: Installed on LC 2
2020 Nov 21 03:23:55 SW1 %BFD-5-SESSION_CREATED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been created
2020 Nov 21 03:24:28 SW1 %BFD-5-SESSION_REMOVED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been removed
2020 Nov 21 03:24:42 SW1 %BFD-5-SESSION_MOVED: BFD session 0x410004bf: Installed on LC 2
2020 Nov 21 03:24:42 SW1 %BFD-5-SESSION_CREATED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been created
2020 Nov 21 03:24:48 SW1 %BFD-5-SESSION_STATE_UP: BFD session 1090520255 to neighbor 192.168.2.1on interface VLAN100 is up.
2020 Nov 21 03:24:49 SW1 %BFD-5-SESSION_STATE_DOWN: BFD session 1090520255 to neighbor 192.168.2.1on interface VLAN100 has gone down. Reason: Echo Function Failed.
2020 Nov 21 03:24:49 SW1 %BFD-5-SESSION_REMOVED: BFD session to neighbor 192.168.2.1on interface VLAN100 has been removed

Thanks

1 Reply 1

balaji.bandi
Hall of Fame
Hall of Fame

Since you running BFD, as soon it see the Link down you get this information.

 

Suggest to check any Physical and Logical connectivity issue.

BB

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