134 lines
4.0 KiB
C++
134 lines
4.0 KiB
C++
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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// Network topology
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//
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// n0 ----------- n1
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// 500 Kbps
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// 5 ms
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//
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// - Flow from n0 to n1 using BulkSendApplication.
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// - Tracing of queues and packet receptions to file "tcp-bulk-send.tr"
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// and pcap tracing available when tracing is turned on.
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#include "ns3/applications-module.h"
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#include "ns3/core-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/network-module.h"
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#include "ns3/packet-sink.h"
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#include "ns3/point-to-point-module.h"
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#include <fstream>
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#include <string>
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE("TcpBulkSendExample");
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int
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main(int argc, char* argv[])
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{
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bool tracing = false;
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uint32_t maxBytes = 0;
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//
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// Allow the user to override any of the defaults at
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// run-time, via command-line arguments
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//
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CommandLine cmd(__FILE__);
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cmd.AddValue("tracing", "Flag to enable/disable tracing", tracing);
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cmd.AddValue("maxBytes", "Total number of bytes for application to send", maxBytes);
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cmd.Parse(argc, argv);
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//
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// Explicitly create the nodes required by the topology (shown above).
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//
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NS_LOG_INFO("Create nodes.");
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NodeContainer nodes;
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nodes.Create(2);
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NS_LOG_INFO("Create channels.");
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//
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// Explicitly create the point-to-point link required by the topology (shown above).
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//
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PointToPointHelper pointToPoint;
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pointToPoint.SetDeviceAttribute("DataRate", StringValue("500Kbps"));
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pointToPoint.SetChannelAttribute("Delay", StringValue("5ms"));
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NetDeviceContainer devices;
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devices = pointToPoint.Install(nodes);
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//
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// Install the internet stack on the nodes
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//
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InternetStackHelper internet;
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internet.Install(nodes);
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//
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// We've got the "hardware" in place. Now we need to add IP addresses.
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//
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NS_LOG_INFO("Assign IP Addresses.");
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Ipv4AddressHelper ipv4;
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ipv4.SetBase("10.1.1.0", "255.255.255.0");
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Ipv4InterfaceContainer i = ipv4.Assign(devices);
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NS_LOG_INFO("Create Applications.");
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//
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// Create a BulkSendApplication and install it on node 0
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//
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uint16_t port = 9; // well-known echo port number
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BulkSendHelper source("ns3::TcpSocketFactory", InetSocketAddress(i.GetAddress(1), port));
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// Set the amount of data to send in bytes. Zero is unlimited.
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source.SetAttribute("MaxBytes", UintegerValue(maxBytes));
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ApplicationContainer sourceApps = source.Install(nodes.Get(0));
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sourceApps.Start(Seconds(0.0));
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sourceApps.Stop(Seconds(10.0));
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//
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// Create a PacketSinkApplication and install it on node 1
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//
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PacketSinkHelper sink("ns3::TcpSocketFactory", InetSocketAddress(Ipv4Address::GetAny(), port));
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ApplicationContainer sinkApps = sink.Install(nodes.Get(1));
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sinkApps.Start(Seconds(0.0));
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sinkApps.Stop(Seconds(10.0));
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//
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// Set up tracing if enabled
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//
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if (tracing)
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{
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AsciiTraceHelper ascii;
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pointToPoint.EnableAsciiAll(ascii.CreateFileStream("tcp-bulk-send.tr"));
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pointToPoint.EnablePcapAll("tcp-bulk-send", false);
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}
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//
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// Now, do the actual simulation.
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//
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NS_LOG_INFO("Run Simulation.");
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Simulator::Stop(Seconds(10.0));
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Simulator::Run();
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Simulator::Destroy();
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NS_LOG_INFO("Done.");
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Ptr<PacketSink> sink1 = DynamicCast<PacketSink>(sinkApps.Get(0));
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std::cout << "Total Bytes Received: " << sink1->GetTotalRx() << std::endl;
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return 0;
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}
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