NS3 (Compile and Run Simulator Program)
On the previous article I wrote how to deploy NS3 on Ubuntu 10.10. Now I would like to share how to build and to run your network simulator program into NS3.
Create file hello-world-ns3.cc and write code below ( this code I copy paste from NS3 sample codes, main-simple.cc)
Create wscript file and write this script
Create waf file and write this script
Sample of output program you can see picture below
Done. This is a simple program for NS3
Development Tools
As we know, NS3 support development programming C++ and Python. There are many C++/Python development tools so you choice a tool you have experiences about development.Getting Started
We start to create folder test on NS3 build folder
Create file hello-world-ns3.cc and write code below ( this code I copy paste from NS3 sample codes, main-simple.cc)
#include <iostream>
#include "ns3/core-module.h"
#include "ns3/helper-module.h"
#include "ns3/node-module.h"
#include "ns3/simulator-module.h"
using namespace ns3;
static void
GenerateTraffic (Ptr<Socket> socket, uint32_t size)
{
std::cout << "at=" << Simulator::Now ().GetSeconds () << "s, tx bytes=" << size << std::endl;
socket->Send (Create<Packet> (size));
if (size > 0)
{
Simulator::Schedule (Seconds (0.5), &GenerateTraffic, socket, size - 50);
}
else
{
socket->Close ();
}
}
static void
SocketPrinter (Ptr<Socket> socket)
{
Ptr<Packet> packet;
while (packet = socket->Recv ())
{
std::cout << "at=" << Simulator::Now ().GetSeconds () << "s, rx bytes=" << packet->GetSize () << std::endl;
}
}
static void
PrintTraffic (Ptr<Socket> socket)
{
socket->SetRecvCallback (MakeCallback (&SocketPrinter));
}
void
RunSimulation (void)
{
NodeContainer c;
c.Create (1);
InternetStackHelper internet;
internet.Install (c);
TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
Ptr<Socket> sink = Socket::CreateSocket (c.Get (0), tid);
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 80);
sink->Bind (local);
Ptr<Socket> source = Socket::CreateSocket (c.Get (0), tid);
InetSocketAddress remote = InetSocketAddress (Ipv4Address::GetLoopback (), 80);
source->Connect (remote);
GenerateTraffic (source, 500);
PrintTraffic (sink);
Simulator::Run ();
Simulator::Destroy ();
}
int main (int argc, char *argv[])
{
RunSimulation ();
return 0;
}
## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
def build(bld):
env = bld.env_of_name('default')
if not env['ENABLE_EXAMPLES']:
return;
obj = bld.create_ns3_program('hello-world-ns3',
['core', 'simulator'])
obj.source = 'hello-world-ns3.cc'
exec "`dirname "$0"`"/../waf "$@"
Compile and Run
You can compile and run using ./waf . Make sure you ‘re in test folder and run this script./waf --run "hello-world-ns3"
Done. This is a simple program for NS3
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