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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2011-2012 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-grid.cc
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/point-to-point-layout-module.h"
#include "ns3/ndnSIM-module.h"
using namespace ns3;
/**
* This scenario simulates a grid topology (using PointToPointGrid module)
*
* (consumer) -- ( ) ----- ( )
* | | |
* ( ) ------ ( ) ----- ( )
* | | |
* ( ) ------ ( ) -- (producer)
*
* All links are 1Mbps with propagation 10ms delay.
*
* FIB is populated using NdnGlobalRoutingHelper.
*
* Consumer requests data from producer with frequency 100 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-grid
*/
int
main (int argc, char *argv[])
{
// Setting default parameters for PointToPoint links and channels
Config::SetDefault ("ns3::PointToPointNetDevice::DataRate", StringValue ("1Mbps"));
Config::SetDefault ("ns3::PointToPointChannel::Delay", StringValue ("10ms"));
Config::SetDefault ("ns3::DropTailQueue::MaxPackets", StringValue ("10"));
// Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
CommandLine cmd;
cmd.Parse (argc, argv);
// Creating 3x3 topology
PointToPointHelper p2p;
PointToPointGridHelper grid (3, 3, p2p);
grid.BoundingBox(100,100,200,200);
// Install NDN stack on all nodes
ndn::StackHelper ndnHelper;
ndnHelper.SetForwardingStrategy ("ns3::ndn::fw::BestRoute");
ndnHelper.InstallAll ();
// Installing global routing interface on all nodes
ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
ndnGlobalRoutingHelper.InstallAll ();
// Getting containers for the consumer/producer
Ptr<Node> producer = grid.GetNode (2, 2);
NodeContainer consumerNodes;
consumerNodes.Add (grid.GetNode (0,0));
// Install NDN applications
std::string prefix = "/prefix";
ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerCbr");
consumerHelper.SetPrefix (prefix);
consumerHelper.SetAttribute ("Frequency", StringValue ("100")); // 100 interests a second
consumerHelper.Install (consumerNodes);
ndn::AppHelper producerHelper ("ns3::ndn::Producer");
producerHelper.SetPrefix (prefix);
producerHelper.SetAttribute ("PayloadSize", StringValue("1024"));
producerHelper.Install (producer);
// Add /prefix origins to ndn::GlobalRouter
ndnGlobalRoutingHelper.AddOrigins (prefix, producer);
// Calculate and install FIBs
ndn::GlobalRoutingHelper::CalculateRoutes ();
Simulator::Stop (Seconds (20.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}