anchor.diff:        (
            BGP
            (
  -	      ATTRIBUTE_DOWNLOAD
  +            ATTRIBUTE_DOWNLOAD
               | BESTPATH
               | DAMPENING
               | DEFAULT
  
positive.code:             | nexus_neighbor_inherit
              | no_shutdown_rb_stanza
              | remote_as_bgp_tail
  	    | use_neighbor_group_bgp_tail
           ) nexus_neighbor_rb_stanza_tail [$addressFamilies]
        )
        | //intentional blank
  
negative.code:       | peergroup = ~( IP_ADDRESS | IPV6_ADDRESS | NEWLINE )
     )
     (
        bgp_tail
        | inherit_peer_session_bgp_tail
        | filter_list_bgp_tail
        | remote_as_bgp_tail
  