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Alexander Afanasyev60a7b622014-12-20 17:04:07 -08001/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/**
3 * Copyright (c) 2011-2015 Regents of the University of California.
4 *
5 * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
6 * contributors.
7 *
8 * ndnSIM is free software: you can redistribute it and/or modify it under the terms
9 * of the GNU General Public License as published by the Free Software Foundation,
10 * either version 3 of the License, or (at your option) any later version.
11 *
12 * ndnSIM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
13 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
14 * PURPOSE. See the GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
18 **/
19
20// ndn-multiple-strategies.cpp
21
Spyridon Mastorakis41fbfe12014-11-24 23:26:09 -080022#include "ns3/core-module.h"
23#include "ns3/network-module.h"
24#include "ns3/point-to-point-module.h"
25#include "ns3/point-to-point-layout-module.h"
26#include "ns3/ndnSIM-module.h"
27
28using namespace ns3;
29using ns3::ndn::StackHelper;
30using ns3::ndn::AppHelper;
31using ns3::ndn::GlobalRoutingHelper;
32using ns3::ndn::StrategyChoiceHelper;
Spyridon Mastorakis41fbfe12014-11-24 23:26:09 -080033
34/**
35 * This scenario simulates a grid topology (using PointToPointGrid module)
36 *
37 * The first six nodes use the best route forwarding strategy, whereas
Alexander Afanasyevc3c7f042015-08-21 11:38:00 -070038 * the three remaining nodes use the multicast forwarding strategy.
Spyridon Mastorakis41fbfe12014-11-24 23:26:09 -080039 *
40 * (consumer) -- ( ) ----- ( )
41 * | | |
42 * ( ) ------ ( ) ----- ( )
43 * | | |
44 * ( ) ------ ( ) -- (producer)
45 *
46 * All links are 1Mbps with propagation 10ms delay.
47 *
48 * FIB is populated using NdnGlobalRoutingHelper.
49 *
50 * Consumer requests data from producer with frequency 100 interests per second
51 * (interests contain constantly increasing sequence number).
52 *
53 * For every received interest, producer replies with a data packet, containing
54 * 1024 bytes of virtual payload.
55 *
56 * To run scenario and see what is happening, use the following command:
57 *
58 * NS_LOG=ndn.Consumer:ndn.Producer ./waf --run=ndn-multiple-strategies
59 */
60
61int
62main(int argc, char* argv[])
63{
64 // Setting default parameters for PointToPoint links and channels
65 Config::SetDefault("ns3::PointToPointNetDevice::DataRate", StringValue("1Mbps"));
66 Config::SetDefault("ns3::PointToPointChannel::Delay", StringValue("10ms"));
67 Config::SetDefault("ns3::DropTailQueue::MaxPackets", StringValue("10"));
68
69 // Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
70 CommandLine cmd;
71 cmd.Parse(argc, argv);
72
73 // Creating 3x3 topology
74 PointToPointHelper p2p;
75 PointToPointGridHelper grid(3, 3, p2p);
76 grid.BoundingBox(100, 100, 200, 200);
77
78 // Install NDN stack on all nodes
79 StackHelper ndnHelper;
80 ndnHelper.InstallAll();
81
82 // Installing global routing interface on all nodes
83 GlobalRoutingHelper ndnGlobalRoutingHelper;
84 ndnGlobalRoutingHelper.InstallAll();
85
86 // Getting containers for the consumer/producer
87 Ptr<Node> producer = grid.GetNode(2, 2);
88 NodeContainer consumerNodes;
89 consumerNodes.Add(grid.GetNode(0, 0));
90
91 // Install NDN applications
92 std::string prefix = "/prefix";
93
94 // Install different forwarding strategies
Spyridon Mastorakis41fbfe12014-11-24 23:26:09 -080095 for (int row = 0; row < 3; row++) {
96 for (int column = 0; column < 3; column++) {
97 if (row < 2)
Spyridon Mastorakis460f57c2014-12-17 00:44:14 -080098 StrategyChoiceHelper::Install(grid.GetNode(row, column), "/prefix",
99 "/localhost/nfd/strategy/best-route");
Spyridon Mastorakis41fbfe12014-11-24 23:26:09 -0800100 else
Spyridon Mastorakis460f57c2014-12-17 00:44:14 -0800101 StrategyChoiceHelper::Install(grid.GetNode(row, column), "/prefix",
Alexander Afanasyevc3c7f042015-08-21 11:38:00 -0700102 "/localhost/nfd/strategy/multicast");
Spyridon Mastorakis41fbfe12014-11-24 23:26:09 -0800103 }
104 }
105
106 AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
107 consumerHelper.SetPrefix(prefix);
108 consumerHelper.SetAttribute("Frequency", StringValue("100")); // 100 interests a second
109 consumerHelper.Install(consumerNodes);
110
111 AppHelper producerHelper("ns3::ndn::Producer");
112 producerHelper.SetPrefix(prefix);
113 producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
114 producerHelper.Install(producer);
115
116 // Add /prefix origins to ndn::GlobalRouter
117 ndnGlobalRoutingHelper.AddOrigins(prefix, producer);
118
119 // Calculate and install FIBs
120 GlobalRoutingHelper::CalculateRoutes();
121
122 Simulator::Stop(Seconds(20.0));
123 Simulator::Run();
124 Simulator::Destroy();
125
126 return 0;
127}