verifying sent and received routes to and from a BGP neighbor

The show route advertising-protocol bgp and show route receive-protocol bgp were my quick way to verify which NLRIs are sent and received with a particular BGP neighbor.

Too much relying on the output of show route advertising-protocol bgp and show route receive-protocol bgp without paying attention to the BGP neighor in the command slowly led me to assume the absence of NLRI exchange between the BGP peers, when the output of those commands is empty. The following example depicts the configuration of iBGP using route reflector technology to build a VXLAN overlay for a leaf-spine topology. Each spine acts as a route reflector to its own client group: