anchor.diff:      NEXT_HOP_SELF NEWLINE
   ;
   
  -rbnx_n_af_next_help_third_party
  +rbnx_n_af_next_hop_third_party
   :
       NEXT_HOP_THIRD_PARTY NEWLINE
   ;
  
positive.code:     | rbnx_n_af_inherit
      | rbnx_n_af_maximum_prefix
      | rbnx_n_af_next_hop_self
      | rbnx_n_af_next_help_third_party
      | rbnx_n_af_prefix_list
      | rbnx_n_af_route_map
      | rbnx_n_af_route_reflector_client
  
negative.code:     | rbnx_af_client_to_client
      | rbnx_af_dampen_igp_metric
      | rbnx_af_dampening
      | rbnx_af_default_information
      | rbnx_af_default_metric
      | rbnx_af_distance
  