To configure the BFD link between the HA pair of CloudEOS and vEOS Routers that is used to detect peer failure, the peer IP address and local BFD source interface must be provided. The following example configures Tunnel 2 as a single hop for the source interface for BFD.

switch(config)#cloud high-availability 
switch(config-cloud-ha)#peer veos2
switch(config-cloud-ha-peer-veos2)#bfd source-interface tunnel 2 single-hop