anchor.diff:      {ok, _} = run_command("ip route replace ~s/32 via ~s table 42", [FormattedAgentIP, FormattedVTEPIP]),
       {ok, _} = run_command("ip route replace ~s/~B via ~s", [FormattedSubnetIP, SubnetPrefixLen, FormattedVTEPIP]),
   
  -    State1.
  +    State0.
   
   run_command(Command, Opts) ->
       Cmd = lists:flatten(io_lib:format(Command, Opts)),
  
positive.code:         MyIP ->
              State;
          _ ->
              maybe_configure_overlay_entry2(Overlay, VTEPIPPrefix, Value, State)
      end.
  
  maybe_configure_overlay_entry2(Overlay, VTEPIPPrefix, LashupValue,
          State = #state{known_neighbors = KnownNeighbors0}) ->
      case ordsets:is_element(VTEPIPPrefix, KnownNeighbors0) of
          true ->
              State;
          false ->
              configure_overlay_entry(Overlay, VTEPIPPrefix, LashupValue, State)
      end.
  
  configure_overlay_entry(Overlay, VTEPIPPrefix = {VTEPIP, _PrefixLen}, LashupValue,
          State0 = #state{known_neighbors = KnownNeighbors0}) ->
      KnownNeighbors1 = ordsets:add_element(VTEPIPPrefix, KnownNeighbors0),
      State1 = State0#state{known_neighbors = KnownNeighbors1},
      #mesos_state_agentoverlayinfo{
          backend = #mesos_state_backendinfo{
              vxlan = #mesos_state_vxlaninfo{
  
negative.code: 
  -record(state, {
      known_overlays = ordsets:new(),
      ip = undefined :: undefined | inet:ip4_address()
  }).
  
  