A Discrete-Event Network Simulator
API
nsclick-routing.cc
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License version 2 as
4  * published by the Free Software Foundation;
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8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9  * GNU General Public License for more details.
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14  *
15  * Authors: Lalith Suresh <suresh.lalith@gmail.com>
16  */
17 
18 // Network topology
19 //
20 //
21 // 172.16.1.0/24
22 // (1.1) (1.2) (2.1) (2.2)
23 //
24 // eth0 eth0 eth1 eth0
25 // n0 ========= n1 ========= n2
26 // LAN 1 LAN 2
27 //
28 // - UDP flows from n0 to n2 via n1.
29 // - All nodes are Click based.
30 //
31 
32 #include "ns3/applications-module.h"
33 #include "ns3/click-internet-stack-helper.h"
34 #include "ns3/core-module.h"
35 #include "ns3/csma-module.h"
36 #include "ns3/internet-module.h"
37 #include "ns3/ipv4-click-routing.h"
38 #include "ns3/ipv4-l3-click-protocol.h"
39 #include "ns3/network-module.h"
40 
41 using namespace ns3;
42 
43 NS_LOG_COMPONENT_DEFINE("NsclickRouting");
44 
45 int
46 main(int argc, char* argv[])
47 {
48  std::string clickConfigFolder = "src/click/examples";
49 
50  CommandLine cmd(__FILE__);
51  cmd.AddValue("clickConfigFolder",
52  "Base folder for click configuration files",
54  cmd.Parse(argc, argv);
55 
56  //
57  // Explicitly create the nodes required by the topology (shown above).
58  //
59  NS_LOG_INFO("Create nodes.");
60  NodeContainer n;
61  n.Create(3);
62 
63  //
64  // Install Click on the nodes
65  //
67  clickinternet.SetClickFile(n.Get(0), clickConfigFolder + "/nsclick-routing-node0.click");
68  clickinternet.SetClickFile(n.Get(1), clickConfigFolder + "/nsclick-ip-router.click");
69  clickinternet.SetClickFile(n.Get(2), clickConfigFolder + "/nsclick-routing-node2.click");
70  clickinternet.SetRoutingTableElement(n.Get(0), "kernel/rt");
71  clickinternet.SetRoutingTableElement(n.Get(1), "u/rt");
72  clickinternet.SetRoutingTableElement(n.Get(2), "kernel/rt");
73  clickinternet.Install(n);
74 
75  NS_LOG_INFO("Create channels.");
76  //
77  // Explicitly create the channels required by the topology (shown above).
78  //
80  csma.SetChannelAttribute("DataRate", DataRateValue(DataRate(5000000)));
81  csma.SetChannelAttribute("Delay", TimeValue(MilliSeconds(2)));
82  csma.SetDeviceAttribute("Mtu", UintegerValue(1400));
83  NetDeviceContainer d01 = csma.Install(NodeContainer(n.Get(0), n.Get(1)));
84  NetDeviceContainer d12 = csma.Install(NodeContainer(n.Get(1), n.Get(2)));
85 
87  //
88  // We've got the "hardware" in place. Now we need to add IP addresses.
89  //
90  NS_LOG_INFO("Assign IP Addresses.");
91  ipv4.SetBase("172.16.1.0", "255.255.255.0");
92  Ipv4InterfaceContainer i01 = ipv4.Assign(d01);
93 
94  ipv4.SetBase("172.16.2.0", "255.255.255.0");
95  Ipv4InterfaceContainer i12 = ipv4.Assign(d12);
96 
97  NS_LOG_INFO("Create Applications.");
98  //
99  // Create one udpServer applications on node one.
100  //
101  uint16_t port = 4000;
103  ApplicationContainer apps = server.Install(n.Get(2));
104  apps.Start(Seconds(1.0));
105  apps.Stop(Seconds(10.0));
106 
107  //
108  // Create one UdpClient application to send UDP datagrams from node zero to
109  // node one.
110  //
111  uint32_t MaxPacketSize = 1024;
112  Time interPacketInterval = Seconds(0.05);
113  uint32_t maxPacketCount = 320;
115  client.SetAttribute("MaxPackets", UintegerValue(maxPacketCount));
116  client.SetAttribute("Interval", TimeValue(interPacketInterval));
117  client.SetAttribute("PacketSize", UintegerValue(MaxPacketSize));
118  apps = client.Install(NodeContainer(n.Get(0)));
119  apps.Start(Seconds(2.0));
120  apps.Stop(Seconds(10.0));
121 
122  csma.EnablePcap("nsclick-routing", d01, false);
123  csma.EnablePcap("nsclick-routing", d12, false);
124 
125  //
126  // Now, do the actual simulation.
127  //
128  NS_LOG_INFO("Run Simulation.");
129  Simulator::Stop(Seconds(20.0));
130  Simulator::Run();
132  NS_LOG_INFO("Done.");
133 
134  return 0;
135 }
holds a vector of ns3::Application pointers.
void Start(Time start) const
Start all of the Applications in this container at the start time given as a parameter.
void Stop(Time stop) const
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
aggregate Click/IP/TCP/UDP functionality to existing Nodes.
Parse command-line arguments.
Definition: command-line.h:232
build a set of CsmaNetDevice objects
Definition: csma-helper.h:48
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
holds a vector of std::pair of Ptr<Ipv4> and interface index.
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const
holds a vector of ns3::NetDevice pointers
keep track of a set of node pointers.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:142
static void Run()
Run the simulation.
Definition: simulator.cc:178
static void Stop()
Tell the Simulator the calling event should be the last one executed.
Definition: simulator.cc:186
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:105
Create a client application which sends UDP packets carrying a 32bit sequence number and a 64 bit tim...
Create a server application which waits for input UDP packets and uses the information carried into t...
Hold an unsigned integer type.
Definition: uinteger.h:45
uint16_t port
Definition: dsdv-manet.cc:44
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:275
void(* DataRate)(DataRate oldValue, DataRate newValue)
TracedValue callback signature for DataRate.
Definition: data-rate.h:327
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1326
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1338
Every class exported by the ns3 library is enclosed in the ns3 namespace.
csma
Definition: second.py:63
cmd
Definition: second.py:40