--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/tcp-nsc-zoo.cc	Fri Aug 29 23:11:41 2008 +0200
@@ -0,0 +1,131 @@
+/* -*- 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
+//
+// - Pcap traces are saved as tcp-nsc-zoo-$n-0.pcap, where $n represents the node number
+// - TCP flows from n0 to n1, n2, n3, from n1 to n0, n2, n3, etc.
+//  Usage (e.g.): ./waf --run 'tcp-nsc-zoo --Nodes=5'
+
+#include <iostream>
+#include <string>
+
+#include "ns3/core-module.h"
+#include "ns3/helper-module.h"
+#include "ns3/node-module.h"
+#include "ns3/global-route-manager.h"
+#include "ns3/simulator-module.h"
+
+using namespace ns3;
+
+NS_LOG_COMPONENT_DEFINE ("TcpNscZoo");
+
+// Simulates a diverse network with various stacks supported by NSC.
+int main(int argc, char *argv[])
+{
+  CsmaHelper csma;
+  unsigned int MaxNodes = 4;
+
+  Config::SetDefault ("ns3::OnOffApplication::PacketSize", UintegerValue (4096));
+  Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue ("1Mb/s"));
+  CommandLine cmd;
+  // this allows the user to raise the number of nodes using --Nodes=X command-line argument.
+  cmd.AddValue("Nodes", "Number of nodes in the network", MaxNodes);
+  cmd.Parse (argc, argv);
+
+  csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate(100 * 1000 * 1000)));
+  csma.SetChannelAttribute ("Delay", TimeValue (MicroSeconds (200)));
+
+  NodeContainer n;
+  n.Create(MaxNodes);
+  NetDeviceContainer ethInterfaces = csma.Install (n);
+
+  InternetStackHelper internetStack;
+
+  internetStack.SetNscStack ("liblinux2.6.26.so");
+  // this switches nodes 0 and 1 to NSCs Linux 2.6.26 stack.
+  internetStack.Install (n.Get(0));
+  internetStack.Install (n.Get(1));
+  // this disables TCP SACK, wscale and timestamps on node 1 (the attributes represent sysctl-values).
+  Config::Set ("/NodeList/1/$ns3::Ns3NscStack<linux2.6.26>/net.ipv4.tcp_sack", StringValue ("0"));
+  Config::Set ("/NodeList/1/$ns3::Ns3NscStack<linux2.6.26>/net.ipv4.tcp_timestamps", StringValue ("0"));
+  Config::Set ("/NodeList/1/$ns3::Ns3NscStack<linux2.6.26>/net.ipv4.tcp_window_scaling", StringValue ("0"));
+  internetStack.Install (n.Get(2));
+  // the next statement doesn't change anything for the nodes 0, 1, and 2; since they
+  // already have a stack assigned.
+  internetStack.SetNscStack ("liblinux2.6.18.so");
+  // this switches node 3 to NSCs Linux 2.6.18 stack.
+  internetStack.Install (n.Get(3));
+  // and then agains disables sack/timestamps/wscale on node 3.
+  Config::Set ("/NodeList/3/$ns3::Ns3NscStack<linux2.6.18>/net.ipv4.tcp_sack", StringValue ("0"));
+  Config::Set ("/NodeList/3/$ns3::Ns3NscStack<linux2.6.18>/net.ipv4.tcp_timestamps", StringValue ("0"));
+  Config::Set ("/NodeList/3/$ns3::Ns3NscStack<linux2.6.18>/net.ipv4.tcp_window_scaling", StringValue ("0"));
+  // the freebsd stack is not yet built by default, so its commented out for now.
+  // internetStack.SetNscStack ("libfreebsd5.so");
+  for (unsigned int i =4; i < MaxNodes; i++)
+    {
+      internetStack.Install (n.Get(i));
+    }
+  Ipv4AddressHelper ipv4;
+
+  ipv4.SetBase ("10.0.0.0", "255.255.255.0");
+  Ipv4InterfaceContainer ipv4Interfaces = ipv4.Assign (ethInterfaces);
+
+  GlobalRouteManager::PopulateRoutingTables ();
+
+  uint16_t servPort = 8080;
+  PacketSinkHelper sinkHelper ("ns3::TcpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), servPort));
+  // start a sink client on all nodes
+  ApplicationContainer sinkApp = sinkHelper.Install (n);
+  sinkApp.Start (Seconds (1.0));
+  sinkApp.Stop (Seconds (30.0));
+
+  // This tells every node on the network to start a flow to all other nodes on the network ...
+  for (unsigned int i = 0 ; i < MaxNodes;i++)
+    {
+      for (unsigned int j = 0 ; j < MaxNodes;j++)
+        {
+          if (i == j)
+            {  // ...but we don't want a node to talk to itself.
+               continue;
+            }
+          Address remoteAddress(InetSocketAddress(ipv4Interfaces.GetAddress (j), servPort));
+          OnOffHelper clientHelper ("ns3::TcpSocketFactory", remoteAddress);
+          clientHelper.SetAttribute 
+            ("OnTime", RandomVariableValue (ConstantVariable (1)));
+          clientHelper.SetAttribute 
+            ("OffTime", RandomVariableValue (ConstantVariable (0)));
+          ApplicationContainer clientApp = clientHelper.Install(n.Get(i));
+          clientApp.Start (Seconds (j + 1.0)); /* delay startup depending on node number */
+          clientApp.Stop (Seconds (j + 10.0));
+	}
+    }
+
+  CsmaHelper::EnablePcapAll ("tcp-nsc-zoo");
+
+  Simulator::Stop (Seconds(1000));
+  Simulator::Run ();
+  Simulator::Destroy ();
+
+  return 0;
+}