Multihop BFD on vPC fabric peering on nexus 9K

[Deepak Bansal]

Hi All,

Im trying to setup BGP between Nexus9K vxlan vPC fabric peering with NCS560.The problem Im facing is when vPC from BL1 goes down the BFD and BGP is not going down. why ? because the BL2 Path is up and NCS560 sending the BFD and BGP hello packets to BL2 which forward to BL1 via VxLAN.

we are tryiny to setup per member BFD on NCS560 port-channel but since its Multihop BFD its not supported it seems.

how to solve this design problem ?

[MHM Cisco World]

Did you check micro bfd

MHM

[Deepak Bansal]

yes that is what we trying to do but it seems in multihop BFD you cant do it, and we cant setup single hop BFD because its vPC with NCS560 and we are peering eBGP with loopbacks, as one cant run BGP or BFD on anycast SVI on nexus 9k.

[MHM Cisco World]

https://www.cisco.com/c/en/us/support/docs/switches/nexus-9000-series-switches/221944-configure-and-verify-bfd-on-nexus-9000-s.html

Did you check this doc

MHM

[Deepak Bansal]

Yes but it doesnt cover BFD on vPC fabric peering