A Discrete-Event Network Simulator
API
csma-packet-socket.cc
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1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * This program is free software; you can redistribute it and/or modify
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9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
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14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 */
16
17//
18// Network topology
19//
20// n0 n1 n2 n3
21// | | | |
22// =====================
23//
24// - Two packet socket flows: from n0 to n1 and from n3 to n0
25// - Default 512 byte packets generated by traffic generator
26// - Output from the PacketSink trace source will be sent to the
27// csma-packet-socket-sink.tr file
28// ASCII trace output will be sent to the csma-packet-socket.tr file
29
30#include <iostream>
31#include <fstream>
32#include <string>
33#include <cassert>
34
35#include "ns3/core-module.h"
36#include "ns3/network-module.h"
37#include "ns3/csma-module.h"
38#include "ns3/applications-module.h"
39
40using namespace ns3;
41
42NS_LOG_COMPONENT_DEFINE ("CsmaPacketSocketExample");
43
44std::ofstream g_os;
45
46static void
48{
49 g_os << p->GetSize () << std::endl;
50}
51
52int
53main (int argc, char *argv[])
54{
55#if 0
56 LogComponentEnable ("CsmaPacketSocketExample", LOG_LEVEL_INFO);
57#endif
58
59 CommandLine cmd (__FILE__);
60 cmd.Parse (argc, argv);
61
62 g_os.open ("csma-packet-socket-sink.tr",std::ios_base::binary | std::ios_base::out);
63
64 // Here, we will explicitly create four nodes.
65 NS_LOG_INFO ("Create nodes.");
67 nodes.Create (4);
68
69 PacketSocketHelper packetSocket;
70 packetSocket.Install (nodes);
71
72 // create the shared medium used by all csma devices.
73 NS_LOG_INFO ("Create channels.");
74 Ptr<CsmaChannel> channel = CreateObjectWithAttributes<CsmaChannel> (
75 "DataRate", DataRateValue (DataRate (5000000)),
76 "Delay", TimeValue (MilliSeconds (2)));
77
78 // use a helper function to connect our nodes to the shared channel.
79 NS_LOG_INFO ("Build Topology.");
81 csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Llc"));
82 NetDeviceContainer devs = csma.Install (nodes, channel);
83
84 NS_LOG_INFO ("Create Applications.");
85 // Create the OnOff application to send raw datagrams
87 socket.SetSingleDevice (devs.Get (0)->GetIfIndex ());
88 socket.SetPhysicalAddress (devs.Get (1)->GetAddress ());
89 socket.SetProtocol (2);
90 OnOffHelper onoff ("ns3::PacketSocketFactory", Address (socket));
91 onoff.SetConstantRate (DataRate ("500kb/s"));
92 ApplicationContainer apps = onoff.Install (nodes.Get (0));
93 apps.Start (Seconds (1.0));
94 apps.Stop (Seconds (10.0));
95
96 socket.SetSingleDevice (devs.Get (3)->GetIfIndex ());
97 socket.SetPhysicalAddress (devs.Get (0)->GetAddress ());
98 socket.SetProtocol (3);
99 onoff.SetAttribute ("Remote", AddressValue (socket));
100 apps = onoff.Install (nodes.Get (3));
101 apps.Start (Seconds (1.0));
102 apps.Stop (Seconds (10.0));
103
104 // Install packet sink on node 0 to receive packets from node 1
105 PacketSinkHelper sink = PacketSinkHelper ("ns3::PacketSocketFactory",
106 socket);
107 apps = sink.Install (nodes.Get (0));
108 apps.Start (Seconds (0.0));
109 apps.Stop (Seconds (20.0));
110
111 // While the below trace sink is hooked to all nodes (the wildcard "*")
112 // only one packet sink (on node 0) is actually added above, so
113 // only the receive events on node 0 will be traced
114 Config::Connect ("/NodeList/*/ApplicationList/*/$ns3::PacketSink/Rx",
116
117 // Configure tracing of all enqueue, dequeue, and NetDevice receive events
118 // Trace output will be sent to the csma-packet-socket.tr file
119 NS_LOG_INFO ("Configure Tracing.");
120
121 AsciiTraceHelper ascii;
122 csma.EnableAsciiAll (ascii.CreateFileStream ("csma-packet-socket.tr"));
123
124 NS_LOG_INFO ("Run Simulation.");
126 Simulator::Destroy ();
127 NS_LOG_INFO ("Done.");
128
129 g_os.close ();
130
131 return 0;
132}
void Run(ObjectFactory &factory, uint32_t pop, uint32_t total, uint32_t runs, Ptr< RandomVariableStream > eventStream, bool calRev)
Perform the runs for a single scheduler type.
a polymophic address class
Definition: address.h:91
AttributeValue implementation for Address.
holds a vector of ns3::Application pointers.
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter.
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
Manage ASCII trace files for device models.
Definition: trace-helper.h:163
Ptr< OutputStreamWrapper > CreateFileStream(std::string filename, std::ios::openmode filemode=std::ios::out)
Create and initialize an output stream object we'll use to write the traced bits.
Parse command-line arguments.
Definition: command-line.h:229
build a set of CsmaNetDevice objects
Definition: csma-helper.h:47
Class for representing data rates.
Definition: data-rate.h:89
AttributeValue implementation for DataRate.
holds a vector of ns3::NetDevice pointers
Ptr< NetDevice > Get(uint32_t i) const
Get the Ptr<NetDevice> stored in this container at a given index.
virtual Address GetAddress(void) const =0
virtual uint32_t GetIfIndex(void) const =0
keep track of a set of node pointers.
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
Definition: on-off-helper.h:43
uint32_t GetSize(void) const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
Definition: packet.h:856
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes.
an address for a packet socket
void SetProtocol(uint16_t protocol)
Set the protocol.
void SetPhysicalAddress(const Address address)
Set the destination address.
void SetSingleDevice(uint32_t device)
Set the address to match only a specified NetDevice.
Give ns3::PacketSocket powers to ns3::Node.
void Install(Ptr< Node > node) const
Aggregate an instance of a ns3::PacketSocketFactory onto the provided node.
Hold variables of type string.
Definition: string.h:41
AttributeValue implementation for Time.
Definition: nstime.h:1309
std::ofstream g_os
static void SinkRx(std::string path, Ptr< const Packet > p, const Address &address)
void Connect(std::string path, const CallbackBase &cb)
Definition: config.cc:920
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:281
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1245
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1253
address
Definition: first.py:40
nodes
Definition: first.py:28
Every class exported by the ns3 library is enclosed in the ns3 namespace.
@ LOG_LEVEL_INFO
LOG_INFO and above.
Definition: log.h:107
void LogComponentEnable(char const *name, enum LogLevel level)
Enable the logging output associated with that log component.
Definition: log.cc:361
Callback< R, Ts... > MakeCallback(R(T::*memPtr)(Ts...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
Definition: callback.h:1648
csma
Definition: second.py:67
cmd
Definition: second.py:43
channel
Definition: third.py:83
Ptr< PacketSink > sink
Definition: wifi-tcp.cc:56