BGP BFD Multihop Nexus N77K

[Tien Ngo]

Hello,

I am trying to configure BGP with BFD multihop but the BFD neighbor is down. Could you please point where I am wrong and show me how to configure it. I have researching many Cisco document but no document show how to configure BFD multihop

Just for iBGP first.

NX1 configuration

Spoiler

router bgp 65111
 neighbor 10.20.20.1
  bfd
  bfd multihop interval 300 min_rx 300 multiplier 3
  remote-as 65111
  update-source loopback0
  address-family ipv4 unicast
!
interface loopback 0
 ip address 10.10.10.1/32
!
interface Vlan10
 no shutdown
 bfd interval 300 min_rx 300 multiplier 3
 no ip redirects
 ip address 1.1.1.1/30
!
ip route 10.20.20.1/32 1.1.1.2

NX2 configuration

Spoiler

router bgp 65111
 neighbor 10.10.10.1
  bfd
  bfd multihop interval 300 min_rx 300 multiplier 3
  remote-as 65111
  update-source loopback0
  address-family ipv4 unicast
!
interface loopback 0
 ip address 10.20.20.1/32
!
interface Vlan10
 no shutdown
 bfd interval 300 min_rx 300 multiplier 3
 no ip redirects
 ip address 1.1.1.2/30
!
ip route 10.10.10.1/32 1.1.1.1

[balaji.bandi]

Not sure what is the version of nexus code running here in environment :

please read the following guide for reference and pre-requisites.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/interfaces/config/cisco_nexus7000_interfaces_config_guide_8x/config-bidirectional-forwarding-detection.html

[Tien Ngo]

Hi BB,
Thanks for your response.
I have read the guide carefully but BFD multihop is still not UP.

[balaji.bandi]

what version of nexus code are you running? 

[Tien Ngo]

Hi BB,
The Nexus is running NXOS 8.2(3) version