--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/tcp-large-transfer.cc Wed Jan 30 17:20:55 2008 +0100
@@ -0,0 +1,229 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+//
+// Network topology
+//
+// 10Mb/s, 10ms 10Mb/s, 10ms
+// n0-----------------n1-----------------n2
+//
+//
+// - Tracing of queues and packet receptions to file
+// "tcp-large-transfer.tr"
+// - pcap traces also generated in the following files
+// "tcp-large-transfer.pcap-$n-$i" where n and i represent node and interface numbers respectively
+// Usage (e.g.): ./waf --run tcp-large-transfer
+
+#include <ctype.h>
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <cassert>
+
+#include "ns3/command-line.h"
+#include "ns3/default-value.h"
+#include "ns3/ptr.h"
+#include "ns3/random-variable.h"
+#include "ns3/log.h"
+
+#include "ns3/simulator.h"
+#include "ns3/nstime.h"
+#include "ns3/data-rate.h"
+
+#include "ns3/ascii-trace.h"
+#include "ns3/pcap-trace.h"
+#include "ns3/internet-node.h"
+#include "ns3/point-to-point-channel.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/ipv4-address.h"
+#include "ns3/inet-socket-address.h"
+#include "ns3/ipv4.h"
+#include "ns3/socket.h"
+#include "ns3/ipv4-route.h"
+#include "ns3/point-to-point-topology.h"
+#include "ns3/onoff-application.h"
+#include "ns3/packet-sink.h"
+#include "ns3/error-model.h"
+#include "ns3/node-list.h"
+
+#include "ns3/tcp.h"
+
+using namespace ns3;
+
+NS_LOG_COMPONENT_DEFINE ("TcpLargeTransfer");
+
+void
+ApplicationTraceSink (const TraceContext &context, Ptr<const Packet> packet,
+ const Address &addr)
+{
+// g_log is not declared in optimized builds
+// should convert this to use of some other flag than the logging system
+#ifdef NS3_LOG_ENABLE
+ if (!g_log.IsNoneEnabled ()) {
+ if (InetSocketAddress::IsMatchingType (addr) )
+ {
+ InetSocketAddress address = InetSocketAddress::ConvertFrom (addr);
+ std::cout << "PacketSink received size " <<
+ packet->GetSize () << " at time " <<
+ Simulator::Now ().GetSeconds () << " from address: " <<
+ address.GetIpv4 () << std::endl;
+ char buf[2000];
+ memcpy(buf, packet->PeekData (), packet->GetSize ());
+ for (uint32_t i=0; i < packet->GetSize (); i++)
+ {
+ std::cout << buf[i];
+ if (i && i % 60 == 0)
+ std::cout << std::endl;
+ }
+ std::cout << std::endl << std::endl;
+ }
+ }
+#endif
+}
+
+void CloseConnection (Ptr<Socket> localSocket)
+{
+ //localSocket->Close ();
+}
+
+void StartFlow(Ptr<Socket> localSocket, uint32_t nBytes,
+ uint16_t servPort)
+{
+ // NS_LOG_LOGIC("Starting flow at time " << Simulator::Now ().GetSeconds ());
+ localSocket->Connect (InetSocketAddress ("10.1.2.2", servPort));//connect
+ localSocket->SetConnectCallback (MakeCallback (&CloseConnection),
+ Callback<void, Ptr<Socket> > (),
+ Callback<void, Ptr<Socket> > ());
+ //we want to close as soon as the connection is established
+ //the tcp state machine and outgoing buffer will assure that
+ //all of the data is delivered
+
+ // Perform series of 1040 byte writes (this is a multiple of 26 since
+ // we want to detect data splicing in the output stream)
+ uint32_t writeSize = 1040;
+ uint8_t data[writeSize];
+ while (nBytes > 0) {
+ uint32_t curSize= nBytes > writeSize ? writeSize : nBytes;
+ for(uint32_t i = 0; i < curSize; ++i)
+ {
+ char m = toascii (97 + i % 26);
+ data[i] = m;
+ }
+ localSocket->Send (data, curSize);
+ nBytes -= curSize;
+ }
+}
+
+int main (int argc, char *argv[])
+{
+
+ // Users may find it convenient to turn on explicit debugging
+ // for selected modules; the below lines suggest how to do this
+// LogComponentEnable("TcpL4Protocol", LOG_LEVEL_ALL);
+// LogComponentEnable("TcpSocket", LOG_LEVEL_ALL);
+// LogComponentEnable("PacketSink", LOG_LEVEL_ALL);
+ //LogComponentEnable("TcpLargeTransfer", LOG_LEVEL_ALL);
+
+ // Allow the user to override any of the defaults and the above
+ // Bind()s at run-time, via command-line arguments
+ CommandLine::Parse (argc, argv);
+
+ // Here, we will explicitly create three nodes. In more sophisticated
+ // topologies, we could configure a node factory.
+ Ptr<Node> n0 = Create<InternetNode> ();
+ Ptr<Node> n1 = Create<InternetNode> ();
+ Ptr<Node> n2 = Create<InternetNode> ();
+
+ // We create the channels first without any IP addressing information
+ Ptr<PointToPointChannel> channel0 =
+ PointToPointTopology::AddPointToPointLink (
+ n0, n1, DataRate(10000000), MilliSeconds(10));
+
+ // Later, we add IP addresses.
+ PointToPointTopology::AddIpv4Addresses (
+ channel0, n0, Ipv4Address("10.1.3.1"),
+ n1, Ipv4Address("10.1.3.2"));
+
+ Ptr<PointToPointChannel> channel1 =
+ PointToPointTopology::AddPointToPointLink (
+ n1, n2, DataRate(10000000), MilliSeconds(10));
+
+ PointToPointTopology::AddIpv4Addresses (
+ channel1, n1, Ipv4Address("10.1.2.1"),
+ n2, Ipv4Address("10.1.2.2"));
+
+ // Finally, we add static routes. These three steps (Channel and
+ // NetDevice creation, IP Address assignment, and routing) are
+ // separated because there may be a need to postpone IP Address
+ // assignment (emulation) or modify to use dynamic routing
+ PointToPointTopology::AddIpv4Routes(n0, n1, channel0);
+ PointToPointTopology::AddIpv4Routes(n1, n2, channel1);
+ Ptr<Ipv4> ipv4;
+ ipv4 = n0->QueryInterface<Ipv4> ();
+ ipv4->SetDefaultRoute (Ipv4Address ("10.1.3.2"), 1);
+ ipv4 = n2->QueryInterface<Ipv4> ();
+ ipv4->SetDefaultRoute (Ipv4Address ("10.1.2.1"), 1);
+
+
+ ///////////////////////////////////////////////////////////////////////////
+ // Simulation 1
+ //
+ // Send 2000000 bytes over a connection to server port 50000 at time 0
+ // Should observe SYN exchange, a lot of data segments, and FIN exchange
+ //
+ ///////////////////////////////////////////////////////////////////////////
+
+ int nBytes = 2000000;
+ uint16_t servPort = 50000;
+
+ Ptr<SocketFactory> socketFactory =
+ n0->QueryInterface<SocketFactory> ();
+ Ptr<Socket> localSocket = socketFactory->CreateSocket ();
+ localSocket->Bind ();
+
+ // Create a packet sink to receive these packets
+ Ptr<PacketSink> sink = Create<PacketSink> (
+ n2,
+ InetSocketAddress (Ipv4Address::GetAny (), servPort),
+ "Tcp");
+ sink->Start (Seconds (0.0));
+ sink->Stop (Seconds (100.0));
+
+ Simulator::Schedule(Seconds(0), &StartFlow, localSocket, nBytes,
+ servPort);
+
+ // Configure tracing of all enqueue, dequeue, and NetDevice receive events
+ // Trace output will be sent to the simple-examples.tr file
+ AsciiTrace asciitrace ("tcp-large-transfer.tr");
+ asciitrace.TraceAllQueues ();
+ asciitrace.TraceAllNetDeviceRx ();
+
+
+ // Also configure some tcpdump traces; each interface will be traced
+ // The output files will be named
+ // simple-examples.pcap-<nodeId>-<interfaceId>
+ // and can be read by the "tcpdump -r" command (use "-tt" option to
+ // display timestamps correctly)
+ PcapTrace pcaptrace ("tcp-large-transfer.pcap");
+ pcaptrace.TraceAllIp ();
+
+ NodeList::Connect ("/nodes/*/applications/*/rx", MakeCallback (&ApplicationTraceSink));
+
+ Simulator::StopAt (Seconds(1000));
+ Simulator::Run ();
+ Simulator::Destroy ();
+}