1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */

     2 /*

     3  * This program is free software; you can redistribute it and/or modify

     4  * it under the terms of the GNU General Public License version 2 as

     5  * published by the Free Software Foundation;

     6  *

     7  * This program is distributed in the hope that it will be useful,

     8  * but WITHOUT ANY WARRANTY; without even the implied warranty of

     9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    10  * GNU General Public License for more details.

    11  *

    12  * You should have received a copy of the GNU General Public License

    13  * along with this program; if not, write to the Free Software

    14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    15  */

    16 

    17 #include "ns3/core-module.h"

    18 #include "ns3/simulator-module.h"

    19 #include "ns3/node-module.h"

    20 #include "ns3/helper-module.h"

    21 

    22 /*

    23  *  Simple point to point links:

    24  *

    25  *  n0 -- n1 -- n2 -- n3

    26  *

    27  *  n0 has UdpEchoClient 

    28  *  n3 has UdpEchoServer

    29  *

    30  *  n0 IP: 10.1.1.1

    31  *  n1 IP: 10.1.1.2, 10.1.2.1

    32  *  n2 IP: 10.1.2.2, 10.1.3.1

    33  *  n3 IP: 10.1.3.2

    34  *

    35  */

    36 

    37 using namespace ns3;

    38 

    39 NS_LOG_COMPONENT_DEFINE ("FirstScriptExample");

    40 

    41   int 

    42 main (int argc, char *argv[])

    43 {

    44   LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);

    45   LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);

    46 

    47   NodeContainer nodes12;

    48   nodes12.Create (2);

    49 

    50   NodeContainer nodes23;

    51   nodes23.Add (nodes12.Get (1));

    52   nodes23.Create (1);

    53 

    54   NodeContainer nodes34;

    55   nodes34.Add(nodes23.Get (1));

    56   nodes34.Create (1);

    57 

    58   PointToPointHelper pointToPoint;

    59   pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));

    60   pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));

    61 

    62   NodeContainer allNodes = NodeContainer (nodes12, nodes23.Get (1), nodes34.Get (1));

    63   

    64   // NixHelper to install nix-vector routing

    65   // on all nodes

    66   Ipv4NixVectorHelper nixRouting;

    67   Ipv4StaticRoutingHelper staticRouting;

    68 

    69   Ipv4ListRoutingHelper list;

    70   list.Add (staticRouting, 0);

    71   list.Add (nixRouting, 10);

    72 

    73   InternetStackHelper stack;

    74   stack.SetRoutingHelper (list);

    75   stack.Install (allNodes);

    76 

    77   NetDeviceContainer devices12;

    78   NetDeviceContainer devices23;

    79   NetDeviceContainer devices34;

    80   devices12 = pointToPoint.Install (nodes12);

    81   devices23 = pointToPoint.Install (nodes23);

    82   devices34 = pointToPoint.Install (nodes34);

    83 

    84   Ipv4AddressHelper address1;

    85   address1.SetBase ("10.1.1.0", "255.255.255.0");

    86   Ipv4AddressHelper address2;

    87   address2.SetBase ("10.1.2.0", "255.255.255.0");

    88   Ipv4AddressHelper address3;

    89   address3.SetBase ("10.1.3.0", "255.255.255.0");

    90 

    91   address1.Assign (devices12);

    92   address2.Assign (devices23);

    93   Ipv4InterfaceContainer interfaces = address3.Assign (devices34);

    94 

    95   UdpEchoServerHelper echoServer (9);

    96 

    97   ApplicationContainer serverApps = echoServer.Install (nodes34.Get (1));

    98   serverApps.Start (Seconds (1.0));

    99   serverApps.Stop (Seconds (10.0));

   100 

   101   UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9);

   102   echoClient.SetAttribute ("MaxPackets", UintegerValue (1));

   103   echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.)));

   104   echoClient.SetAttribute ("PacketSize", UintegerValue (1024));

   105 

   106   ApplicationContainer clientApps = echoClient.Install (nodes12.Get (0));

   107   clientApps.Start (Seconds (2.0));

   108   clientApps.Stop (Seconds (10.0));

   109 

   110 

   111   Simulator::Run ();

   112   Simulator::Destroy ();

   113   return 0;

   114 }