Ns-3 Nix-vector Routing

examples/nix-simple.cc

+/* -*- 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
+ */
+
+#include "ns3/core-module.h"
+#include "ns3/simulator-module.h"
+#include "ns3/node-module.h"
+#include "ns3/helper-module.h"
+
+/*
+ *  Simple point to point links:
+ *
+ *  n0 -- n1 -- n2 -- n3
+ *
+ *  n0 has UdpEchoClient 
+ *  n3 has UdpEchoServer
+ *
+ *  n0 IP: 10.1.1.1
+ *  n1 IP: 10.1.1.2, 10.1.2.1
+ *  n2 IP: 10.1.2.2, 10.1.3.1
+ *  n3 IP: 10.1.3.2
+ *
+ */
+
+using namespace ns3;
+
+NS_LOG_COMPONENT_DEFINE ("FirstScriptExample");
+
+  int 
+main (int argc, char *argv[])
+{
+  LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
+  LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);
+
+  NodeContainer nodes12;
+  nodes12.Create (2);
+
+  NodeContainer nodes23;
+  nodes23.Add(nodes12.Get(1));
+  nodes23.Create(1);
+
+  NodeContainer nodes34;
+  nodes34.Add(nodes23.Get(1));
+  nodes34.Create(1);
+
+  PointToPointHelper pointToPoint;
+  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
+  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
+
+  NodeContainer allNodes = NodeContainer(nodes12, nodes23.Get(1), nodes34.Get(1));
+  
+  // NixHelper to install nix-vector routing
+  // on all nodes
+  Ipv4NixVectorHelper nixHelper;
+  Ipv4StaticRoutingHelper staticRouting;

[craigdo, 2009/09/11 22:38:17]

Why have nixHelper, and staticRouting?  It seems clearer to list.Add
staticRouting and nixRouting.

[jpelkey, 2009/09/12 18:34:14]

On 2009/09/11 22:38:17, craigdo wrote:
> Why have nixHelper, and staticRouting?  It seems clearer to list.Add
> staticRouting and nixRouting.

Done.

+
+  Ipv4ListRoutingHelper list;
+  list.Add (staticRouting, 0);
+  list.Add (nixHelper, 10);
+
+  InternetStackHelper stack;
+  stack.SetRoutingHelper (list);
+  stack.Install (allNodes);
+
+  NetDeviceContainer devices12;
+  NetDeviceContainer devices23;
+  NetDeviceContainer devices34;
+  devices12 = pointToPoint.Install (nodes12);
+  devices23 = pointToPoint.Install (nodes23);
+  devices34 = pointToPoint.Install (nodes34);
+
+  Ipv4AddressHelper address1;
+  address1.SetBase ("10.1.1.0", "255.255.255.0");
+  Ipv4AddressHelper address2;
+  address2.SetBase ("10.1.2.0", "255.255.255.0");
+  Ipv4AddressHelper address3;
+  address3.SetBase ("10.1.3.0", "255.255.255.0");
+
+
+  address1.Assign (devices12);
+  address2.Assign (devices23);
+  Ipv4InterfaceContainer interfaces = address3.Assign (devices34);
+
+  UdpEchoServerHelper echoServer (9);
+
+  ApplicationContainer serverApps = echoServer.Install (nodes34.Get (1));
+  serverApps.Start (Seconds (1.0));
+  serverApps.Stop (Seconds (10.0));
+
+  UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9);
+  echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
+  echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.)));
+  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
+
+  ApplicationContainer clientApps = echoClient.Install (nodes12.Get (0));
+  clientApps.Start (Seconds (2.0));
+  clientApps.Stop (Seconds (10.0));
+
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+  return 0;
+}