anchor.diff:      {ok, listen, #state{ctrl_channel_address = WTPControlChannelAddress,
   			request_queue = queue:new(),
   			ctrl_stream = capwap_stream:init(MTU),
  +			change_state_pending_timeout = ?ChangeStatePendingTimeout,
                           radios = []}, 5000}.
   
   %%--------------------------------------------------------------------
  
positive.code: 	  retransmit_counter,
  	  echo_request_timer,
  	  echo_request_timeout,
  	  seqno = 0,
  	  version,
            station_count = 0,
  
negative.code:             UpdatedWlan = Wlan#ieee_802_11_tp_wlan{ssid = LocalConfSSId, key = LocalConfKey},
              get_admin_wifi_update(RestWlan, AdminSSIds, [UpdatedWlan | Accu])
      end.
  
  start_change_state_pending_timer(#state{change_state_pending_timeout = Timeout}
  				 = State) ->
      TRef = gen_fsm:send_event_after(Timeout, timeout),
      State#state{protocol_timer = TRef}.
  
  cancel_change_state_pending_timer(#state{protocol_timer = TRef} = State) ->
      gen_fsm:cancel_timer(TRef),
      State#state{protocol_timer = undefined}.
  