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fixed bug 1031

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This commit is contained in:
Nicola Baldo
2010-11-17 17:12:55 +01:00
parent eb0d765ebf
commit 0240a54b8c
1 changed files with 57 additions and 14 deletions
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71
examples/wireless/wifi-hidden-terminal.cc
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@@ -68,6 +68,7 @@ void experiment (bool enableCtsRts)
// 5. Install wireless devices
WifiHelper wifi;
wifi.SetStandard (WIFI_PHY_STANDARD_80211b);
wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
"DataMode",StringValue ("DsssRate2Mbps"),
"ControlMode",StringValue ("DsssRate1Mbps"));
@@ -76,7 +77,15 @@ void experiment (bool enableCtsRts)
NqosWifiMacHelper wifiMac = NqosWifiMacHelper::Default ();
wifiMac.SetType ("ns3::AdhocWifiMac"); // use ad-hoc MAC
NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, nodes);
// uncomment the following to have athstats output
// AthstatsHelper athstats;
// athstats.EnableAthstats(enableCtsRts ? "basic-athstats-node" : "rtscts-athstats-node", nodes);
// uncomment the following to have pcap output
//wifiPhy.EnablePcap (enableCtsRts ? "basic-pcap-node" : "rtscts-pcap-node", nodes);
// 6. Install TCP/IP stack & assign IP addresses
InternetStackHelper internet;
internet.Install (nodes);
@@ -84,17 +93,48 @@ void experiment (bool enableCtsRts)
ipv4.SetBase ("10.0.0.0", "255.0.0.0");
ipv4.Assign (devices);
// 7. Install applications: two dense CBR streams node 0 -> node 1 and node 2 -> node 1
ApplicationContainer apps;
OnOffHelper onOffHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address ("10.0.0.2"), 9));
onOffHelper.SetAttribute ("DataRate", StringValue ("10Mbps"));
// 7. Install applications: two CBR streams each saturating the channel
ApplicationContainer cbrApps;
uint16_t cbrPort = 12345;
OnOffHelper onOffHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address ("10.0.0.2"), cbrPort));
onOffHelper.SetAttribute ("PacketSize", UintegerValue (200));
onOffHelper.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1)));
onOffHelper.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0)));
for (size_t i = 0; i < 3; i += 2)
{
apps.Add (onOffHelper.Install (nodes.Get (i)));
}
// flow 1: node 0 -> node 1
onOffHelper.SetAttribute ("DataRate", StringValue ("3000000bps"));
onOffHelper.SetAttribute ("StartTime", TimeValue (Seconds (1.000000)));
cbrApps.Add (onOffHelper.Install (nodes.Get (0)));
// flow 2: node 2 -> node 1
// The slightly different start times and data rates are a workround
// for Bug 388 and Bug 912
// http://www.nsnam.org/bugzilla/show_bug.cgi?id=912
// http://www.nsnam.org/bugzilla/show_bug.cgi?id=388
onOffHelper.SetAttribute ("DataRate", StringValue ("3001100bps"));
onOffHelper.SetAttribute ("StartTime", TimeValue (Seconds (1.001)));
cbrApps.Add (onOffHelper.Install (nodes.Get (2)));
// we also use separate UDP applications that will send a single
// packet before the CBR flows start.
// This is a workround for the lack of perfect ARP, see Bug 187
// http://www.nsnam.org/bugzilla/show_bug.cgi?id=187
uint16_t echoPort = 9;
UdpEchoClientHelper echoClientHelper (Ipv4Address ("10.0.0.2"), echoPort);
echoClientHelper.SetAttribute ("MaxPackets", UintegerValue (1));
echoClientHelper.SetAttribute ("Interval", TimeValue (Seconds (0.1)));
echoClientHelper.SetAttribute ("PacketSize", UintegerValue (10));
ApplicationContainer pingApps;
// again using different start times to workaround Bug 388 and Bug 912
echoClientHelper.SetAttribute ("StartTime", TimeValue (Seconds (0.001)));
pingApps.Add (echoClientHelper.Install (nodes.Get (0)));
echoClientHelper.SetAttribute ("StartTime", TimeValue (Seconds (0.006)));
pingApps.Add (echoClientHelper.Install (nodes.Get (2)));
// 8. Install FlowMonitor on all nodes
FlowMonitorHelper flowmon;
@@ -110,11 +150,14 @@ void experiment (bool enableCtsRts)
std::map<FlowId, FlowMonitor::FlowStats> stats = monitor->GetFlowStats ();
for (std::map<FlowId, FlowMonitor::FlowStats>::const_iterator i = stats.begin (); i != stats.end (); ++i)
{
Ipv4FlowClassifier::FiveTuple t = classifier->FindFlow (i->first);
std::cout << "Flow " << i->first << " (" << t.sourceAddress << " -> " << t.destinationAddress << ")\n";
std::cout << " Tx Bytes: " << i->second.txBytes << "\n";
std::cout << " Rx Bytes: " << i->second.rxBytes << "\n";
std::cout << " Throughput: " << i->second.rxBytes * 8.0 / 10.0 / 1024 / 1024 << " Mbps\n";
// first 2 FlowIds are for ECHO apps, we don't want to display them
if (i->first > 2)
{
Ipv4FlowClassifier::FiveTuple t = classifier->FindFlow (i->first);
std::cout << "Flow " << i->first - 2 << " (" << t.sourceAddress << " -> " << t.destinationAddress << ")\n"; std::cout << " Tx Bytes: " << i->second.txBytes << "\n";
std::cout << " Rx Bytes: " << i->second.rxBytes << "\n";
std::cout << " Throughput: " << i->second.rxBytes * 8.0 / 10.0 / 1024 / 1024 << " Mbps\n";
}
}
// 11. Cleanup