A Discrete-Event Network Simulator
API
udp-client-server.cc
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16 
17 // Network topology
18 //
19 // n0 n1
20 // | |
21 // =======
22 // LAN
23 //
24 // - UDP flows from n0 to n1
25 
26 #include <fstream>
27 #include "ns3/core-module.h"
28 #include "ns3/csma-module.h"
29 #include "ns3/applications-module.h"
30 #include "ns3/internet-module.h"
31 
32 using namespace ns3;
33 
34 NS_LOG_COMPONENT_DEFINE ("UdpClientServerExample");
35 
36 int
37 main (int argc, char *argv[])
38 {
39 //
40 // Enable logging for UdpClient and
41 //
42  LogComponentEnable ("UdpClient", LOG_LEVEL_INFO);
43  LogComponentEnable ("UdpServer", LOG_LEVEL_INFO);
44 
45  bool useV6 = false;
46  Address serverAddress;
47 
49  cmd.AddValue ("useIpv6", "Use Ipv6", useV6);
50  cmd.Parse (argc, argv);
51 
52 //
53 // Explicitly create the nodes required by the topology (shown above).
54 //
55  NS_LOG_INFO ("Create nodes.");
57  n.Create (2);
58 
59  InternetStackHelper internet;
60  internet.Install (n);
61 
62  NS_LOG_INFO ("Create channels.");
63 //
64 // Explicitly create the channels required by the topology (shown above).
65 //
67  csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
68  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
69  csma.SetDeviceAttribute ("Mtu", UintegerValue (1400));
70  NetDeviceContainer d = csma.Install (n);
71 
72 //
73 // We've got the "hardware" in place. Now we need to add IP addresses.
74 //
75  NS_LOG_INFO ("Assign IP Addresses.");
76  if (useV6 == false)
77  {
78  Ipv4AddressHelper ipv4;
79  ipv4.SetBase ("10.1.1.0", "255.255.255.0");
80  Ipv4InterfaceContainer i = ipv4.Assign (d);
81  serverAddress = Address (i.GetAddress (1));
82  }
83  else
84  {
85  Ipv6AddressHelper ipv6;
86  ipv6.SetBase ("2001:0000:f00d:cafe::", Ipv6Prefix (64));
87  Ipv6InterfaceContainer i6 = ipv6.Assign (d);
88  serverAddress = Address(i6.GetAddress (1,1));
89  }
90 
91  NS_LOG_INFO ("Create Applications.");
92 //
93 // Create one udpServer applications on node one.
94 //
95  uint16_t port = 4000;
96  UdpServerHelper server (port);
97  ApplicationContainer apps = server.Install (n.Get (1));
98  apps.Start (Seconds (1.0));
99  apps.Stop (Seconds (10.0));
100 
101 //
102 // Create one UdpClient application to send UDP datagrams from node zero to
103 // node one.
104 //
105  uint32_t MaxPacketSize = 1024;
106  Time interPacketInterval = Seconds (0.05);
107  uint32_t maxPacketCount = 320;
108  UdpClientHelper client (serverAddress, port);
109  client.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));
110  client.SetAttribute ("Interval", TimeValue (interPacketInterval));
111  client.SetAttribute ("PacketSize", UintegerValue (MaxPacketSize));
112  apps = client.Install (n.Get (0));
113  apps.Start (Seconds (2.0));
114  apps.Stop (Seconds (10.0));
115 
116 //
117 // Now, do the actual simulation.
118 //
119  NS_LOG_INFO ("Run Simulation.");
120  Simulator::Run ();
122  NS_LOG_INFO ("Done.");
123 }
holds a vector of ns3::Application pointers.
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:102
Keep track of a set of IPv6 interfaces.
holds a vector of std::pair of Ptr<Ipv4> and interface index.
static void Run(void)
Run the simulation.
Definition: simulator.cc:226
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1022
aggregate IP/TCP/UDP functionality to existing Nodes.
void SetBase(Ipv6Address network, Ipv6Prefix prefix, Ipv6Address base=Ipv6Address("::1"))
Set the base network number, network prefix, and base interface ID.
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:278
cmd
Definition: second.py:35
uint16_t port
Definition: dsdv-manet.cc:45
a polymophic address class
Definition: address.h:90
Ipv6InterfaceContainer Assign(const NetDeviceContainer &c)
Allocate an Ipv6InterfaceContainer with auto-assigned addresses.
Class for representing data rates.
Definition: data-rate.h:88
void LogComponentEnable(char const *name, enum LogLevel level)
Enable the logging output associated with that log component.
Definition: log.cc:369
Create a client application which sends UDP packets carrying a 32bit sequence number and a 64 bit tim...
AttributeValue implementation for Time.
Definition: nstime.h:1076
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const
Hold an unsigned integer type.
Definition: uinteger.h:44
LOG_INFO and above.
Definition: log.h:104
holds a vector of ns3::NetDevice pointers
Create a server application which waits for input UDP packets and uses the information carried into t...
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter...
csma
Definition: second.py:63
Parse command-line arguments.
Definition: command-line.h:213
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:190
Every class exported by the ns3 library is enclosed in the ns3 namespace.
keep track of a set of node pointers.
Ipv6Address GetAddress(uint32_t i, uint32_t j) const
Get the address for the specified index.
build a set of CsmaNetDevice objects
Definition: csma-helper.h:46
Helper class to auto-assign global IPv6 unicast addresses.
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter...
Ipv4InterfaceContainer Assign(const NetDeviceContainer &c)
Assign IP addresses to the net devices specified in the container based on the current network prefix...
AttributeValue implementation for DataRate.
Definition: data-rate.h:242
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1014
Describes an IPv6 prefix.
Definition: ipv6-address.h:428
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="0.0.0.1")
Set the base network number, network mask and base address.