--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/click/examples/nsclick-udp-client-server-csma.cc	Wed Feb 23 17:50:31 2011 +0000
@@ -0,0 +1,126 @@
+/* -*- 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
+ */
+
+// Adaptation of examples/udp/udp-client-server.cc for
+// Click based nodes.
+//
+// Network topology
+//
+//         172.16.1.0/24
+//      (1.1) (1.2)  (1.3)
+//        n0    n1    n2
+//        |     |     |
+//        =============
+//             LAN
+//
+// - UDP flows from n0 to n1 and n2 to n1
+// - All nodes are Click based.
+// - The single ethernet interface that each node
+//   uses is named 'eth0' in the Click file.
+//
+
+#include <fstream>
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/helper-module.h"
+#include "ns3/ipv4-click-routing.h"
+#include "ns3/click-internet-stack-helper.h"
+
+using namespace ns3;
+
+NS_LOG_COMPONENT_DEFINE ("NsclickUdpClientServerCsma");
+
+int
+main (int argc, char *argv[])
+{
+#ifdef NS3_CLICK
+//
+// Enable logging for UdpClient and
+//
+  LogComponentEnable ("NsclickUdpClientServerCsma", LOG_LEVEL_INFO);
+
+//
+// Explicitly create the nodes required by the topology (shown above).
+//
+  NS_LOG_INFO ("Create nodes.");
+  NodeContainer n;
+  n.Create (3);
+
+  NS_LOG_INFO ("Create channels.");
+//
+// Explicitly create the channels required by the topology (shown above).
+//
+  CsmaHelper csma;
+  csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate(5000000)));
+  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
+  csma.SetDeviceAttribute ("Mtu", UintegerValue (1400));
+  NetDeviceContainer d = csma.Install (n);
+
+//
+// Install Click on the nodes
+//
+  ClickInternetStackHelper clickinternet;
+  clickinternet.SetClickFile (n, "src/routing/click/examples/nsclick-lan-single-interface.click");
+  clickinternet.SetRoutingTableElement (n, "rt");
+  clickinternet.Install (n);
+
+  Ipv4AddressHelper ipv4;
+//
+// We've got the "hardware" in place.  Now we need to add IP addresses.
+//
+  NS_LOG_INFO ("Assign IP Addresses.");
+  ipv4.SetBase ("172.16.1.0", "255.255.255.0");
+  Ipv4InterfaceContainer i = ipv4.Assign (d);
+
+  NS_LOG_INFO ("Create Applications.");
+//
+// Create one udpServer applications on node one.
+//
+  uint16_t port = 4000;
+  UdpServerHelper server (port);
+  ApplicationContainer apps = server.Install (n.Get(1));
+  apps.Start (Seconds (1.0));
+  apps.Stop (Seconds (10.0));
+
+//
+// Create one UdpClient application to send UDP datagrams from node zero to
+// node one.
+//
+  uint32_t MaxPacketSize = 1024;
+  Time interPacketInterval = Seconds (0.05);
+  uint32_t maxPacketCount = 320;
+  UdpClientHelper client (i.GetAddress (1), port);
+  client.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));
+  client.SetAttribute ("Interval", TimeValue (interPacketInterval));
+  client.SetAttribute ("PacketSize", UintegerValue (MaxPacketSize));
+  apps = client.Install (NodeContainer (n.Get (0), n.Get (2)));
+  apps.Start (Seconds (2.0));
+  apps.Stop (Seconds (10.0));
+
+  csma.EnablePcap ("nsclick-udp-client-server-csma", d, false);
+
+//
+// Now, do the actual simulation.
+//
+  NS_LOG_INFO ("Run Simulation.");
+  Simulator::Stop (Seconds(20.0));
+  Simulator::Run ();
+  Simulator::Destroy ();
+  NS_LOG_INFO ("Done.");
+#else
+  NS_FATAL_ERROR ("Can't use ns-3-click without NSCLICK compiled in");
+#endif
+}