View | Details | Raw Unified | Return to bug 1831
Collapse All | Expand All

(-)a/examples/tcp/tcp-variants-comparison.cc (-125 / +118 lines)
 Lines 1-6    Link Here 
1
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
1
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2
/*
2
/*
3
 * Copyright (c) 2013 ResiliNets, ITTC, University of Kansas 
3
 * Copyright (c) 2013 ResiliNets, ITTC, University of Kansas
4
 *
4
 *
5
 * This program is free software; you can redistribute it and/or modify
5
 * This program is free software; you can redistribute it and/or modify
6
 * it under the terms of the GNU General Public License version 2 as
6
 * it under the terms of the GNU General Public License version 2 as
 Lines 54-144    Link Here 
54
54
55
NS_LOG_COMPONENT_DEFINE ("TcpVariantsComparison");
55
NS_LOG_COMPONENT_DEFINE ("TcpVariantsComparison");
56
56
57
double old_time = 0.0;
57
bool firstCwnd = true;
58
EventId output;
58
bool firstSshThr = true;
59
Time current = Time::FromInteger(3, Time::S);  //Only record cwnd and ssthresh values every 3 seconds
59
Ptr<OutputStreamWrapper> cWndStream;
60
bool first = true;
60
Ptr<OutputStreamWrapper> ssThreshStream;
61
uint32_t cWndValue;
62
uint32_t ssThreshValue;
63
61
64
62
static void
65
static void
63
OutputTrace ()
66
CwndTracer (uint32_t oldval, uint32_t newval)
64
{
67
{
65
 // *stream->GetStream() << newtime << " " << newval << std::endl;
68
  if (firstCwnd)
66
 // old_time = newval;
69
    {
70
      *cWndStream->GetStream () << "0.0 " << oldval << std::endl;
71
      firstCwnd = false;
72
    }
73
  *cWndStream->GetStream () << Simulator::Now ().GetSeconds () << " " << newval << std::endl;
74
  cWndValue = newval;
75
76
  if (!firstSshThr)
77
    {
78
      *ssThreshStream->GetStream () << Simulator::Now ().GetSeconds () << " " << ssThreshValue << std::endl;
79
    }
67
}
80
}
68
81
69
static void
82
static void
70
CwndTracer (Ptr<OutputStreamWrapper>stream, uint32_t oldval, uint32_t newval)
83
SsThreshTracer (uint32_t oldval, uint32_t newval)
71
{
84
{
72
  double new_time = Simulator::Now().GetSeconds();
85
  if (firstSshThr)
73
  if (old_time == 0 && first)
74
  {
75
    double mycurrent = current.GetSeconds();
76
    *stream->GetStream() << new_time << " " << mycurrent << " " << newval << std::endl;
77
    first = false;
78
    output = Simulator::Schedule(current,&OutputTrace);
79
  }
80
  else
81
  {
82
    if (output.IsExpired())
83
    {
86
    {
84
      *stream->GetStream() << new_time << " " << newval << std::endl;
87
      *ssThreshStream->GetStream () << "0.0 " << oldval << std::endl;
85
      output.Cancel();
88
      firstSshThr = false;
86
      output = Simulator::Schedule(current,&OutputTrace);
87
    }
89
    }
88
  }
90
  *ssThreshStream->GetStream () << Simulator::Now ().GetSeconds () << " " << newval << std::endl;
91
  ssThreshValue = newval;
92
93
  if (!firstCwnd)
94
    {
95
      *cWndStream->GetStream () << Simulator::Now ().GetSeconds () << " " << cWndValue << std::endl;
96
    }
89
}
97
}
90
98
91
static void
92
SsThreshTracer (Ptr<OutputStreamWrapper>stream, uint32_t oldval, uint32_t newval)
93
{
94
  double new_time = Simulator::Now().GetSeconds();
95
  if (old_time == 0 && first)
96
  {
97
    double mycurrent = current.GetSeconds();
98
    *stream->GetStream() << new_time << " " << mycurrent << " " << newval << std::endl;
99
    first = false;
100
    output = Simulator::Schedule(current,&OutputTrace);
101
  }
102
  else
103
  {
104
    if (output.IsExpired())
105
    {
106
      *stream->GetStream() << new_time << " " << newval << std::endl;
107
      output.Cancel();
108
      output = Simulator::Schedule(current,&OutputTrace);
109
    }
110
  }
111
}
112
99
113
static void
100
static void
114
TraceCwnd (std::string cwnd_tr_file_name)
101
TraceCwnd (std::string cwnd_tr_file_name)
115
{
102
{
116
  AsciiTraceHelper ascii;
103
  AsciiTraceHelper ascii;
117
  if (cwnd_tr_file_name.compare("") == 0)
104
  if (cwnd_tr_file_name.compare ("") == 0)
118
     {
105
    {
119
       NS_LOG_DEBUG ("No trace file for cwnd provided");
106
      NS_LOG_DEBUG ("No trace file for cwnd provided");
120
       return;
107
      return;
121
     }
108
    }
122
  else
109
  else
123
    {
110
    {
124
      Ptr<OutputStreamWrapper> stream = ascii.CreateFileStream(cwnd_tr_file_name.c_str());
111
      cWndStream = ascii.CreateFileStream (cwnd_tr_file_name.c_str ());
125
      Config::ConnectWithoutContext ("/NodeList/1/$ns3::TcpL4Protocol/SocketList/0/CongestionWindow",MakeBoundCallback (&CwndTracer, stream));
112
      Config::ConnectWithoutContext ("/NodeList/1/$ns3::TcpL4Protocol/SocketList/0/CongestionWindow", MakeCallback (&CwndTracer));
126
    }
113
    }
127
}
114
}
128
115
129
static void
116
static void
130
TraceSsThresh(std::string ssthresh_tr_file_name)
117
TraceSsThresh (std::string ssthresh_tr_file_name)
131
{
118
{
132
  AsciiTraceHelper ascii;
119
  AsciiTraceHelper ascii;
133
  if (ssthresh_tr_file_name.compare("") == 0)
120
  if (ssthresh_tr_file_name.compare ("") == 0)
134
    {
121
    {
135
      NS_LOG_DEBUG ("No trace file for ssthresh provided");
122
      NS_LOG_DEBUG ("No trace file for ssthresh provided");
136
      return;
123
      return;
137
    }
124
    }
138
  else
125
  else
139
    {
126
    {
140
      Ptr<OutputStreamWrapper> stream = ascii.CreateFileStream(ssthresh_tr_file_name.c_str());
127
      ssThreshStream = ascii.CreateFileStream (ssthresh_tr_file_name.c_str ());
141
      Config::ConnectWithoutContext ("/NodeList/1/$ns3::TcpL4Protocol/SocketList/0/SlowStartThreshold",MakeBoundCallback (&SsThreshTracer, stream));
128
      Config::ConnectWithoutContext ("/NodeList/1/$ns3::TcpL4Protocol/SocketList/0/SlowStartThreshold",MakeCallback (&SsThreshTracer));
142
    }
129
    }
143
}
130
}
144
131
 Lines 162-186    Link Here 
162
149
163
150
164
  CommandLine cmd;
151
  CommandLine cmd;
165
  cmd.AddValue("transport_prot", "Transport protocol to use: TcpTahoe, TcpReno, TcpNewReno, TcpWestwood, TcpWestwoodPlus ", transport_prot);
152
  cmd.AddValue ("transport_prot", "Transport protocol to use: TcpTahoe, TcpReno, TcpNewReno, TcpWestwood, TcpWestwoodPlus ", transport_prot);
166
  cmd.AddValue("error_p", "Packet error rate", error_p);
153
  cmd.AddValue ("error_p", "Packet error rate", error_p);
167
  cmd.AddValue("bandwidth", "Bottleneck bandwidth", bandwidth);
154
  cmd.AddValue ("bandwidth", "Bottleneck bandwidth", bandwidth);
168
  cmd.AddValue("access_bandwidth", "Access link bandwidth", access_bandwidth);
155
  cmd.AddValue ("access_bandwidth", "Access link bandwidth", access_bandwidth);
169
  cmd.AddValue("delay", "Access link delay", access_delay);
156
  cmd.AddValue ("delay", "Access link delay", access_delay);
170
  cmd.AddValue("tracing", "Flag to enable/disable tracing", tracing);
157
  cmd.AddValue ("tracing", "Flag to enable/disable tracing", tracing);
171
  cmd.AddValue("tr_name", "Name of output trace file", tr_file_name);
158
  cmd.AddValue ("tr_name", "Name of output trace file", tr_file_name);
172
  cmd.AddValue("cwnd_tr_name", "Name of output trace file", cwnd_tr_file_name);
159
  cmd.AddValue ("cwnd_tr_name", "Name of output trace file", cwnd_tr_file_name);
173
  cmd.AddValue("ssthresh_tr_name", "Name of output trace file", ssthresh_tr_file_name);
160
  cmd.AddValue ("ssthresh_tr_name", "Name of output trace file", ssthresh_tr_file_name);
174
  cmd.AddValue("data", "Number of Megabytes of data to transmit", data_mbytes);
161
  cmd.AddValue ("data", "Number of Megabytes of data to transmit", data_mbytes);
175
  cmd.AddValue("mtu", "Size of IP packets to send in bytes", mtu_bytes);
162
  cmd.AddValue ("mtu", "Size of IP packets to send in bytes", mtu_bytes);
176
  cmd.AddValue("num_flows", "Number of flows", num_flows);
163
  cmd.AddValue ("num_flows", "Number of flows", num_flows);
177
  cmd.AddValue("duration", "Time to allow flows to run in seconds", duration);
164
  cmd.AddValue ("duration", "Time to allow flows to run in seconds", duration);
178
  cmd.AddValue("run", "Run index (for setting repeatable seeds)", run);
165
  cmd.AddValue ("run", "Run index (for setting repeatable seeds)", run);
179
  cmd.AddValue("flow_monitor", "Enable flow monitor", flow_monitor);
166
  cmd.AddValue ("flow_monitor", "Enable flow monitor", flow_monitor);
180
  cmd.Parse (argc, argv);
167
  cmd.Parse (argc, argv);
181
168
182
  SeedManager::SetSeed(1);
169
  SeedManager::SetSeed (1);
183
  SeedManager::SetRun(run);
170
  SeedManager::SetRun (run);
184
171
185
  // User may find it convenient to enable logging
172
  // User may find it convenient to enable logging
186
  //LogComponentEnable("TcpVariantsComparison", LOG_LEVEL_ALL);
173
  //LogComponentEnable("TcpVariantsComparison", LOG_LEVEL_ALL);
 Lines 188-199    Link Here 
188
  //LogComponentEnable("DropTailQueue", LOG_LEVEL_ALL);
175
  //LogComponentEnable("DropTailQueue", LOG_LEVEL_ALL);
189
176
190
  // Calculate the ADU size
177
  // Calculate the ADU size
191
  Header* temp_header = new Ipv4Header();
178
  Header* temp_header = new Ipv4Header ();
192
  uint32_t ip_header = temp_header->GetSerializedSize();
179
  uint32_t ip_header = temp_header->GetSerializedSize ();
193
  NS_LOG_LOGIC ("IP Header size is: " << ip_header);
180
  NS_LOG_LOGIC ("IP Header size is: " << ip_header);
194
  delete temp_header;
181
  delete temp_header;
195
  temp_header = new TcpHeader();
182
  temp_header = new TcpHeader ();
196
  uint32_t tcp_header = temp_header->GetSerializedSize();
183
  uint32_t tcp_header = temp_header->GetSerializedSize ();
197
  NS_LOG_LOGIC ("TCP Header size is: " << tcp_header);
184
  NS_LOG_LOGIC ("TCP Header size is: " << tcp_header);
198
  delete temp_header;
185
  delete temp_header;
199
  uint32_t tcp_adu_size = mtu_bytes - (ip_header + tcp_header);
186
  uint32_t tcp_adu_size = mtu_bytes - (ip_header + tcp_header);
 Lines 204-225    Link Here 
204
  float stop_time = start_time + duration;
191
  float stop_time = start_time + duration;
205
192
206
  // Select TCP variant
193
  // Select TCP variant
207
  if (transport_prot.compare("TcpTahoe") == 0)
194
  if (transport_prot.compare ("TcpTahoe") == 0)
208
    Config::SetDefault("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpTahoe::GetTypeId()));
195
    {
209
  else if (transport_prot.compare("TcpReno") == 0)
196
      Config::SetDefault ("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpTahoe::GetTypeId ()));
210
    Config::SetDefault("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpReno::GetTypeId()));
211
  else if (transport_prot.compare("TcpNewReno") == 0)
212
    Config::SetDefault("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpNewReno::GetTypeId()));
213
  else if (transport_prot.compare("TcpWestwood") == 0)
214
    {// the default protocol type in ns3::TcpWestwood is WESTWOOD
215
      Config::SetDefault("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpWestwood::GetTypeId()));
216
      Config::SetDefault("ns3::TcpWestwood::FilterType", EnumValue(TcpWestwood::TUSTIN));
217
    }
197
    }
218
  else if (transport_prot.compare("TcpWestwoodPlus") == 0)
198
  else if (transport_prot.compare ("TcpReno") == 0)
219
    {
199
    {
220
      Config::SetDefault("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpWestwood::GetTypeId()));
200
      Config::SetDefault ("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpReno::GetTypeId ()));
221
      Config::SetDefault("ns3::TcpWestwood::ProtocolType", EnumValue(TcpWestwood::WESTWOODPLUS));
201
    }
222
      Config::SetDefault("ns3::TcpWestwood::FilterType", EnumValue(TcpWestwood::TUSTIN));
202
  else if (transport_prot.compare ("TcpNewReno") == 0)
203
    {
204
      Config::SetDefault ("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpNewReno::GetTypeId ()));
205
    }
206
  else if (transport_prot.compare ("TcpWestwood") == 0)
207
    { // the default protocol type in ns3::TcpWestwood is WESTWOOD
208
      Config::SetDefault ("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpWestwood::GetTypeId ()));
209
      Config::SetDefault ("ns3::TcpWestwood::FilterType", EnumValue (TcpWestwood::TUSTIN));
210
    }
211
  else if (transport_prot.compare ("TcpWestwoodPlus") == 0)
212
    {
213
      Config::SetDefault ("ns3::TcpL4Protocol::SocketType", TypeIdValue (TcpWestwood::GetTypeId ()));
214
      Config::SetDefault ("ns3::TcpWestwood::ProtocolType", EnumValue (TcpWestwood::WESTWOODPLUS));
215
      Config::SetDefault ("ns3::TcpWestwood::FilterType", EnumValue (TcpWestwood::TUSTIN));
223
    }
216
    }
224
  else
217
  else
225
    {
218
    {
 Lines 231-248    Link Here 
231
  NodeContainer gateways;
224
  NodeContainer gateways;
232
  gateways.Create (1);
225
  gateways.Create (1);
233
  NodeContainer sources;
226
  NodeContainer sources;
234
  sources.Create(num_flows);
227
  sources.Create (num_flows);
235
  NodeContainer sinks;
228
  NodeContainer sinks;
236
  sinks.Create(num_flows);
229
  sinks.Create (num_flows);
237
230
238
  // Configure the error model
231
  // Configure the error model
239
  // Here we use RateErrorModel with packet error rate
232
  // Here we use RateErrorModel with packet error rate
240
  Ptr<UniformRandomVariable> uv = CreateObject<UniformRandomVariable>();
233
  Ptr<UniformRandomVariable> uv = CreateObject<UniformRandomVariable> ();
241
  uv->SetStream (50);
234
  uv->SetStream (50);
242
  RateErrorModel error_model;
235
  RateErrorModel error_model;
243
  error_model.SetRandomVariable(uv);
236
  error_model.SetRandomVariable (uv);
244
  error_model.SetUnit(RateErrorModel::ERROR_UNIT_PACKET);
237
  error_model.SetUnit (RateErrorModel::ERROR_UNIT_PACKET);
245
  error_model.SetRate(error_p);
238
  error_model.SetRate (error_p);
246
239
247
  PointToPointHelper UnReLink;
240
  PointToPointHelper UnReLink;
248
  UnReLink.SetDeviceAttribute ("DataRate", StringValue (bandwidth));
241
  UnReLink.SetDeviceAttribute ("DataRate", StringValue (bandwidth));
 Lines 262-277    Link Here 
262
  LocalLink.SetDeviceAttribute ("DataRate", StringValue (access_bandwidth));
255
  LocalLink.SetDeviceAttribute ("DataRate", StringValue (access_bandwidth));
263
  LocalLink.SetChannelAttribute ("Delay", StringValue (access_delay));
256
  LocalLink.SetChannelAttribute ("Delay", StringValue (access_delay));
264
  Ipv4InterfaceContainer sink_interfaces;
257
  Ipv4InterfaceContainer sink_interfaces;
265
  for (int i=0; i<num_flows; i++)
258
  for (int i = 0; i < num_flows; i++)
266
    {
259
    {
267
      NetDeviceContainer devices;
260
      NetDeviceContainer devices;
268
      devices = LocalLink.Install(sources.Get(i), gateways.Get(0));
261
      devices = LocalLink.Install (sources.Get (i), gateways.Get (0));
269
      address.NewNetwork();
262
      address.NewNetwork ();
270
      Ipv4InterfaceContainer interfaces = address.Assign (devices);
263
      Ipv4InterfaceContainer interfaces = address.Assign (devices);
271
      devices = UnReLink.Install(gateways.Get(0), sinks.Get(i));
264
      devices = UnReLink.Install (gateways.Get (0), sinks.Get (i));
272
      address.NewNetwork();
265
      address.NewNetwork ();
273
      interfaces = address.Assign (devices);
266
      interfaces = address.Assign (devices);
274
      sink_interfaces.Add(interfaces.Get(1));
267
      sink_interfaces.Add (interfaces.Get (1));
275
    }
268
    }
276
269
277
  NS_LOG_INFO ("Initialize Global Routing.");
270
  NS_LOG_INFO ("Initialize Global Routing.");
 Lines 281-309    Link Here 
281
  Address sinkLocalAddress (InetSocketAddress (Ipv4Address::GetAny (), port));
274
  Address sinkLocalAddress (InetSocketAddress (Ipv4Address::GetAny (), port));
282
  PacketSinkHelper sinkHelper ("ns3::TcpSocketFactory", sinkLocalAddress);
275
  PacketSinkHelper sinkHelper ("ns3::TcpSocketFactory", sinkLocalAddress);
283
276
284
  for(uint16_t i=0; i<sources.GetN(); i++)
277
  for (uint16_t i = 0; i < sources.GetN (); i++)
285
    {
278
    {
286
      AddressValue remoteAddress (InetSocketAddress (sink_interfaces.GetAddress(i, 0), port));
279
      AddressValue remoteAddress (InetSocketAddress (sink_interfaces.GetAddress (i, 0), port));
287
280
288
      if (transport_prot.compare("TcpTahoe") == 0
281
      if (transport_prot.compare ("TcpTahoe") == 0
289
          || transport_prot.compare("TcpReno") == 0
282
          || transport_prot.compare ("TcpReno") == 0
290
          || transport_prot.compare("TcpNewReno") == 0
283
          || transport_prot.compare ("TcpNewReno") == 0
291
          || transport_prot.compare("TcpWestwood") == 0
284
          || transport_prot.compare ("TcpWestwood") == 0
292
          || transport_prot.compare("TcpWestwoodPlus") == 0)
285
          || transport_prot.compare ("TcpWestwoodPlus") == 0)
293
        {
286
        {
294
          Config::SetDefault ("ns3::TcpSocket::SegmentSize", UintegerValue (tcp_adu_size));
287
          Config::SetDefault ("ns3::TcpSocket::SegmentSize", UintegerValue (tcp_adu_size));
295
          BulkSendHelper ftp("ns3::TcpSocketFactory", Address());
288
          BulkSendHelper ftp ("ns3::TcpSocketFactory", Address ());
296
          ftp.SetAttribute ("Remote", remoteAddress);
289
          ftp.SetAttribute ("Remote", remoteAddress);
297
          ftp.SetAttribute ("SendSize", UintegerValue (tcp_adu_size));
290
          ftp.SetAttribute ("SendSize", UintegerValue (tcp_adu_size));
298
          ftp.SetAttribute ("MaxBytes", UintegerValue (int(data_mbytes*1000000)));
291
          ftp.SetAttribute ("MaxBytes", UintegerValue (int(data_mbytes * 1000000)));
299
292
300
          ApplicationContainer sourceApp = ftp.Install (sources.Get(i));
293
          ApplicationContainer sourceApp = ftp.Install (sources.Get (i));
301
          sourceApp.Start (Seconds (start_time*i));
294
          sourceApp.Start (Seconds (start_time * i));
302
          sourceApp.Stop (Seconds (stop_time - 3));
295
          sourceApp.Stop (Seconds (stop_time - 3));
303
296
304
          sinkHelper.SetAttribute ("Protocol", TypeIdValue (TcpSocketFactory::GetTypeId ()));
297
          sinkHelper.SetAttribute ("Protocol", TypeIdValue (TcpSocketFactory::GetTypeId ()));
305
          ApplicationContainer sinkApp = sinkHelper.Install (sinks);
298
          ApplicationContainer sinkApp = sinkHelper.Install (sinks);
306
          sinkApp.Start (Seconds (start_time*i));
299
          sinkApp.Start (Seconds (start_time * i));
307
          sinkApp.Stop (Seconds (stop_time));
300
          sinkApp.Stop (Seconds (stop_time));
308
        }
301
        }
309
      else
302
      else
 Lines 318-356    Link Here 
318
    {
311
    {
319
      std::ofstream ascii;
312
      std::ofstream ascii;
320
      Ptr<OutputStreamWrapper> ascii_wrap;
313
      Ptr<OutputStreamWrapper> ascii_wrap;
321
      if (tr_file_name.compare("") == 0)
314
      if (tr_file_name.compare ("") == 0)
322
        {
315
        {
323
          NS_LOG_DEBUG ("No trace file provided");
316
          NS_LOG_DEBUG ("No trace file provided");
324
          exit (1);
317
          exit (1);
325
        }
318
        }
326
      else
319
      else
327
        {
320
        {
328
          ascii.open (tr_file_name.c_str());
321
          ascii.open (tr_file_name.c_str ());
329
          ascii_wrap = new OutputStreamWrapper(tr_file_name.c_str(), std::ios::out);
322
          ascii_wrap = new OutputStreamWrapper (tr_file_name.c_str (), std::ios::out);
330
        }
323
        }
331
324
332
      stack.EnableAsciiIpv4All (ascii_wrap);
325
      stack.EnableAsciiIpv4All (ascii_wrap);
333
326
334
      Simulator::Schedule(Seconds(0.00001), &TraceCwnd, cwnd_tr_file_name);
327
      Simulator::Schedule (Seconds (0.00001), &TraceCwnd, cwnd_tr_file_name);
335
      Simulator::Schedule(Seconds(0.00001), &TraceSsThresh, ssthresh_tr_file_name);
328
      Simulator::Schedule (Seconds (0.00001), &TraceSsThresh, ssthresh_tr_file_name);
336
    }
329
    }
337
330
338
  UnReLink.EnablePcapAll("TcpVariantsComparison", true);
331
  UnReLink.EnablePcapAll ("TcpVariantsComparison", true);
339
  LocalLink.EnablePcapAll("TcpVariantsComparison", true);
332
  LocalLink.EnablePcapAll ("TcpVariantsComparison", true);
340
333
341
  // Flow monitor
334
  // Flow monitor
342
  FlowMonitorHelper flowHelper;
335
  FlowMonitorHelper flowHelper;
343
  if (flow_monitor)
336
  if (flow_monitor)
344
    {
337
    {
345
      flowHelper.InstallAll();
338
      flowHelper.InstallAll ();
346
    }
339
    }
347
340
348
  Simulator::Stop (Seconds(stop_time));
341
  Simulator::Stop (Seconds (stop_time));
349
  Simulator::Run ();
342
  Simulator::Run ();
350
343
351
  if (flow_monitor)
344
  if (flow_monitor)
352
    {
345
    {
353
      flowHelper.SerializeToXmlFile("TcpVariantsComparison.flowmonitor", true, true);
346
      flowHelper.SerializeToXmlFile ("TcpVariantsComparison.flowmonitor", true, true);
354
    }
347
    }
355
348
356
  Simulator::Destroy ();
349
  Simulator::Destroy ();

Return to bug 1831