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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013 University of California, Los Angeles
*
* 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
*
* Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
// ndn-csma.cc
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/csma-module.h"
#include "ns3/ndnSIM-module.h"
using namespace ns3;
/**
* This scenario simulates a very simple network topology:
*
* CSMA bus (1Mbps, 10ms)
* +--------------------------+--------------------------+
* | | |
*
* +----------+ +--------+ +----------+
* | consumer | | router | | producer |
* +----------+ +--------+ +----------+
*
*
* Consumer requests data from producer with frequency 10 interests per second
* (interests contain constantly increasing sequence number).
*
* For every received interest, producer replies with a data packet, containing
* 1024 bytes of virtual payload.
*
* To run scenario and see what is happening, use the following command:
*
* NS_LOG=ndn.Consumer:ndn.Producer ./waf --run=ndn-csma
*/
int
main(int argc, char* argv[])
{
// setting default parameters for PointToPoint links and channels
Config::SetDefault("ns3::CsmaChannel::DataRate", StringValue("1Mbps"));
Config::SetDefault("ns3::CsmaChannel::Delay", StringValue("10ms"));
Config::SetDefault("ns3::DropTailQueue::MaxPackets", StringValue("20"));
// Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
CommandLine cmd;
cmd.Parse(argc, argv);
// Creating nodes
NodeContainer nodes;
nodes.Create(3);
// Connecting nodes using two links
CsmaHelper csma;
csma.Install(nodes);
// Install NDN stack on all nodes
ndn::StackHelper ndnHelper;
ndnHelper.SetDefaultRoutes(true);
ndnHelper.InstallAll();
// Installing applications
// Consumer
ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
// Consumer will request /prefix/0, /prefix/1, ...
consumerHelper.SetPrefix("/prefix");
consumerHelper.SetAttribute("Frequency", StringValue("10")); // 10 interests a second
consumerHelper.Install(nodes.Get(0)); // first node
// Producer
ndn::AppHelper producerHelper("ns3::ndn::Producer");
// Producer will reply to all requests starting with /prefix
producerHelper.SetPrefix("/prefix");
producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
producerHelper.Install(nodes.Get(2)); // last node
Simulator::Stop(Seconds(20.0));
Simulator::Run();
Simulator::Destroy();
return 0;
}