anchor.diff:  init([Peer]) ->
       process_flag(trap_exit, true),
       capwap_wtp_reg:register(Peer),
  -    {ok, listen, #state{peer = Peer}, 5000}.
  +    {ok, listen, #state{peer = Peer, request_queue = queue:new()}, 5000}.
   
   %%--------------------------------------------------------------------
   %% @private
  
positive.code: 	{Header, {Msg, 0, Seq, Elements}} ->
  	    %% Response
  	    lager:debug("got capwap response: ~w~n", [Msg]),
  	    case LastRequest of
  		{Seq, _} ->
  		    State1 = ack_request(State),
  		    ?MODULE:StateName({Msg, Seq, Elements, Header}, State1);
  		_ ->
  		    %% invalid Seq, out-of-order packet, silently ignore,
  		    {next_state, StateName, State, ?IDLE_TIMEOUT}
  	    end
      catch
  	Class:Error ->
  
negative.code: 	  mac_mode,
  	  tunnel_mode,
  	  last_response,
  	  request_queue,
  	  retransmit_timer,
  	  retransmit_counter,
  	  echo_request_timer,
  