--- a/examples/tutorial/sixth.cc	Mon Jan 25 17:07:33 2010 -0800
+++ b/examples/tutorial/sixth.cc	Wed Jan 27 12:15:30 2010 -0800
@@ -210,16 +210,16 @@
 
   Ptr<Socket> ns3TcpSocket = Socket::CreateSocket (nodes.Get (0), TcpSocketFactory::GetTypeId ());
 
-  AsciiTraceHelper asciiTraceHelper;
-  Ptr<OutputStreamObject> stream = asciiTraceHelper.CreateFileStream ("sixth.cwnd");
-  ns3TcpSocket->TraceConnectWithoutContext ("CongestionWindow", MakeBoundCallback (&CwndChange, stream));
-
   Ptr<MyApp> app = CreateObject<MyApp> ();
   app->Setup (ns3TcpSocket, sinkAddress, 1040, 1000, DataRate ("1Mbps"));
   nodes.Get (0)->AddApplication (app);
   app->SetStartTime (Seconds (1.));
   app->SetStopTime (Seconds (20.));
 
+  AsciiTraceHelper asciiTraceHelper;
+  Ptr<OutputStreamObject> stream = asciiTraceHelper.CreateFileStream ("sixth.cwnd");
+  ns3TcpSocket->TraceConnectWithoutContext ("CongestionWindow", MakeBoundCallback (&CwndChange, stream));
+
   PcapHelper pcapHelper;
   Ptr<PcapFileObject> file = pcapHelper.CreateFile ("sixth.pcap", "w", PcapHelper::DLT_PPP);
   devices.Get (1)->TraceConnectWithoutContext("PhyRxDrop", MakeBoundCallback (&RxDrop, file));