I followed the configuration guide to configure BFD but it isn't seem to be working. I have a eBGP peer directly connected off a physical interface on a leaf node. The peering and everything is working, and I am just trying to add BFD to this peering. Basically I configured a BFD policy and associated it in my switch policy group. Then to my existing switch profile I associated the switch policy group to leaf selector.
I am not getting any output in BFD process for that leaf node, or via the cli (show bfd ipv4 neighbors details). How can I troubleshoot this? Am I missing something obvious?
Accepted Solutions
Hello,
I am using eBGP with SVIs and got it working fine. I did not do it globally but per interface level:
Config on external 5K:
! feature bfd ! interface Vlan1303 description SVI to Leaf103 bgp_pod1 - Michael no shutdown vrf member mg1 bfd interval 250 min_rx 250 multiplier 3 no ip redirects ip address 192.168.4.2/24 router bgp 100 vrf mg1 address-family ipv4 unicast neighbor 192.168.3.1 remote-as 200 bfd update-source Vlan1303 address-family ipv4 unicast
ACI (make sure you enable it under the peer connectivity profile, see second screenshot).
a-leaf101# show bfd neighbors vrf MG:v1 OurAddr NeighAddr LD/RD RH/RS Holdown(mult) State Int Vrf 192.168.3.1 192.168.3.3 1090519123/1090519041 Up 750(3) Up Vlan123 MG:v1
If you want to enable it globally:
Obviously depending on the platform the external device config will change slightly.
If you are still having trouble with doing it globally let me know and I will lab it up for you.
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Regards,
Michael G.
Hello,
I am using eBGP with SVIs and got it working fine. I did not do it globally but per interface level:
Config on external 5K:
! feature bfd ! interface Vlan1303 description SVI to Leaf103 bgp_pod1 - Michael no shutdown vrf member mg1 bfd interval 250 min_rx 250 multiplier 3 no ip redirects ip address 192.168.4.2/24 router bgp 100 vrf mg1 address-family ipv4 unicast neighbor 192.168.3.1 remote-as 200 bfd update-source Vlan1303 address-family ipv4 unicast
ACI (make sure you enable it under the peer connectivity profile, see second screenshot).
a-leaf101# show bfd neighbors vrf MG:v1 OurAddr NeighAddr LD/RD RH/RS Holdown(mult) State Int Vrf 192.168.3.1 192.168.3.3 1090519123/1090519041 Up 750(3) Up Vlan123 MG:v1
If you want to enable it globally:
Obviously depending on the platform the external device config will change slightly.
If you are still having trouble with doing it globally let me know and I will lab it up for you.
Thank you for participating in the Cisco Support Forum for ACI! If you have other questions related to this post, please let us know. If this response answers your questions, please mark this post "answered" and assign a rating to the response(s) provided. This will help notify other viewers that your question(s) is answered and this helps us provide better responses for this and future questions.
Regards,
Michael G.
Hi Michael,
Thanks so much for your help. This is what I was missing - the check box for BFD under BGP peer connectivity profile. However I dont see the BFD interface profile option like you do.
My configuration isn't global I believe, since my switch policy to enable BFD is tied to an interface policy for a single interface (ebgp uplink)?
