--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/udp-echo.cc Wed Sep 12 15:23:25 2007 -0700
@@ -0,0 +1,200 @@
+/* -*- 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
+//
+// n0 n1 n2 n3
+// | | | |
+// =================
+// LAN
+//
+// - CBR/UDP flows from n0 to n1 and from n3 to n0
+// - DropTail queues
+// - Tracing of queues and packet receptions to file "csma-one-subnet.tr"
+
+#include "ns3/command-line.h"
+#include "ns3/default-value.h"
+#include "ns3/ptr.h"
+#include "ns3/debug.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/csma-channel.h"
+#include "ns3/csma-net-device.h"
+#include "ns3/csma-topology.h"
+#include "ns3/csma-ipv4-topology.h"
+#include "ns3/eui48-address.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/udp-echo-client.h"
+
+using namespace ns3;
+
+NS_DEBUG_COMPONENT_DEFINE ("UdpEcho");
+
+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
+//
+#if 1
+ DebugComponentEnable("CsmaOneSubnet");
+
+ DebugComponentEnable("Object");
+ DebugComponentEnable("Queue");
+ DebugComponentEnable("DropTailQueue");
+ DebugComponentEnable("Channel");
+ DebugComponentEnable("CsmaChannel");
+ DebugComponentEnable("CsmaNetDevice");
+ DebugComponentEnable("Ipv4L3Protocol");
+ DebugComponentEnable("NetDevice");
+ DebugComponentEnable("PacketSocket");
+ DebugComponentEnable("OnOffApplication");
+ DebugComponentEnable("UdpSocket");
+ DebugComponentEnable("UdpL4Protocol");
+ DebugComponentEnable("Ipv4L3Protocol");
+ DebugComponentEnable("Ipv4StaticRouting");
+ DebugComponentEnable("Ipv4Interface");
+ DebugComponentEnable("ArpIpv4Interface");
+ DebugComponentEnable("Ipv4LoopbackInterface");
+ DebugComponentEnable("UdpEchoClient");
+#endif
+//
+// Set up default values for the simulation. Use the DefaultValue::Bind()
+// technique to tell the system what subclass of Queue to use. The Bind
+// command command tells the queue factory which class to instantiate when the
+// queue factory is invoked in the topology code
+//
+ DefaultValue::Bind ("Queue", "DropTailQueue");
+//
+// Allow the user to override any of the defaults and the above Bind() at
+// run-time, via command-line arguments
+//
+ CommandLine::Parse (argc, argv);
+//
+// Explicitly create the nodes required by the topology (shown above).
+//
+ NS_DEBUG("Create nodes.");
+ Ptr<Node> n0 = Create<InternetNode> ();
+ Ptr<Node> n1 = Create<InternetNode> ();
+ Ptr<Node> n2 = Create<InternetNode> ();
+ Ptr<Node> n3 = Create<InternetNode> ();
+
+ NS_DEBUG("Create channels.");
+//
+// Explicitly create the channels required by the topology (shown above).
+//
+ Ptr<CsmaChannel> lan = CsmaTopology::CreateCsmaChannel(
+ DataRate(5000000), MilliSeconds(2));
+
+ NS_DEBUG("Build Topology.");
+//
+// Now fill out the topology by creating the net devices required to connect
+// the nodes to the channels and hooking them up. AddIpv4CsmaNetDevice will
+// create a net device, add a MAC address (in memory of the pink flamingo) and
+// connect the net device to a nodes and also to a channel. the
+// AddIpv4CsmaNetDevice method returns a net device index for the net device
+// created on the node. Interpret nd0 as the net device we created for node
+// zero.
+//
+ uint32_t nd0 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, lan,
+ Eui48Address("08:00:2e:00:00:00"));
+
+ uint32_t nd1 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n1, lan,
+ Eui48Address("08:00:2e:00:00:01"));
+
+ uint32_t nd2 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n2, lan,
+ Eui48Address("08:00:2e:00:00:02"));
+
+ uint32_t nd3 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n3, lan,
+ Eui48Address("08:00:2e:00:00:03"));
+
+ NS_DEBUG ("nd0 = " << nd0);
+ NS_DEBUG ("nd1 = " << nd1);
+ NS_DEBUG ("nd2 = " << nd2);
+ NS_DEBUG ("nd3 = " << nd3);
+//
+// We've got the "hardware" in place. Now we need to add IP addresses.
+//
+ NS_DEBUG("Assign IP Addresses.");
+//
+// XXX BUGBUG
+// Need a better way to get the interface index. The point-to-point topology
+// as implemented can't return the index since it creates interfaces on both
+// sides (i.e., it does AddIpv4Addresses, not AddIpv4Address). We need a
+// method on Ipv4 to find the interface index corresponding to a given ipv4
+// address.
+//
+// Assign IP addresses to the net devices and associated interfaces
+// on the lan. The AddIpv4Address method returns an Ipv4 interface index
+// which we do not need here.
+//
+ CsmaIpv4Topology::AddIpv4Address (n0, nd0, Ipv4Address("10.1.1.1"),
+ Ipv4Mask("255.255.255.0"));
+
+ CsmaIpv4Topology::AddIpv4Address (n1, nd1, Ipv4Address("10.1.1.2"),
+ Ipv4Mask("255.255.255.0"));
+
+ CsmaIpv4Topology::AddIpv4Address (n2, nd2, Ipv4Address("10.1.1.3"),
+ Ipv4Mask("255.255.255.0"));
+
+ CsmaIpv4Topology::AddIpv4Address (n3, nd3, Ipv4Address("10.1.1.4"),
+ Ipv4Mask("255.255.255.0"));
+//
+// Create a UdpEchoClient application to send UDP datagrams from node zero to
+// node 1.
+//
+ NS_DEBUG("Create Applications.");
+ Ptr<UdpEchoClient> client = Create<UdpEchoClient> (n0,"10.1.1.2", 80,
+ 1, Seconds(1.), 1024);
+//
+// Tell the application when to start and stop.
+//
+ client->Start(Seconds(1.0));
+ client->Stop (Seconds(10.0));
+//
+// Configure tracing of all enqueue, dequeue, and NetDevice receive events.
+// Trace output will be sent to the file "csma-one-subnet.tr"
+//
+ NS_DEBUG("Configure Tracing.");
+ AsciiTrace asciitrace ("csma-one-subnet.tr");
+ asciitrace.TraceAllNetDeviceRx ();
+ asciitrace.TraceAllQueues ();
+//
+// Also configure some tcpdump traces; each interface will be traced.
+// The output files will be named:
+// csma-one-subnet.pcap-<nodeId>-<interfaceId>
+// and can be read by the "tcpdump -r" command (use "-tt" option to
+// display timestamps correctly)
+//
+ PcapTrace pcaptrace ("csma-one-subnet.pcap");
+ pcaptrace.TraceAllIp ();
+//
+// Now, do the actual simulation.
+//
+ NS_DEBUG("Run Simulation.");
+ Simulator::Run ();
+ Simulator::Destroy ();
+ NS_DEBUG("Done.");
+}