A Discrete-Event Network Simulator
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17 #include "ns3/core-module.h"
18 #include "ns3/network-module.h"
19 #include "ns3/csma-module.h"
20 #include "ns3/internet-module.h"
21 #include "ns3/point-to-point-module.h"
22 #include "ns3/applications-module.h"
23 #include "ns3/ipv4-global-routing-helper.h"
25 // Default Network Topology
26 //
27 //
28 // n0 -------------- n1 n2 n3 n4
29 // point-to-point | | | |
30 // ================
31 // LAN
34 using namespace ns3;
36 NS_LOG_COMPONENT_DEFINE ("SecondScriptExample");
38 int
39 main (int argc, char *argv[])
40 {
41  bool verbose = true;
42  uint32_t nCsma = 3;
45  cmd.AddValue ("nCsma", "Number of \"extra\" CSMA nodes/devices", nCsma);
46  cmd.AddValue ("verbose", "Tell echo applications to log if true", verbose);
48  cmd.Parse (argc,argv);
50  if (verbose)
51  {
52  LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
53  LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
54  }
56  nCsma = nCsma == 0 ? 1 : nCsma;
59  p2pNodes.Create (2);
62  csmaNodes.Add (p2pNodes.Get (1));
63  csmaNodes.Create (nCsma);
66  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
67  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
70  p2pDevices = pointToPoint.Install (p2pNodes);
73  csma.SetChannelAttribute ("DataRate", StringValue ("100Mbps"));
74  csma.SetChannelAttribute ("Delay", TimeValue (NanoSeconds (6560)));
77  csmaDevices = csma.Install (csmaNodes);
80  stack.Install (p2pNodes.Get (0));
81  stack.Install (csmaNodes);
84  address.SetBase ("", "");
86  p2pInterfaces = address.Assign (p2pDevices);
88  address.SetBase ("", "");
90  csmaInterfaces = address.Assign (csmaDevices);
94  ApplicationContainer serverApps = echoServer.Install (csmaNodes.Get (nCsma));
95  serverApps.Start (Seconds (1.0));
96  serverApps.Stop (Seconds (10.0));
98  UdpEchoClientHelper echoClient (csmaInterfaces.GetAddress (nCsma), 9);
99  echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
100  echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.0)));
101  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
103  ApplicationContainer clientApps = echoClient.Install (p2pNodes.Get (0));
104  clientApps.Start (Seconds (2.0));
105  clientApps.Stop (Seconds (10.0));
109  pointToPoint.EnablePcapAll ("second");
110  csma.EnablePcap ("second", csmaDevices.Get (1), true);
112  Simulator::Run ();
114  return 0;
115 }
holds a vector of ns3::Application pointers.
tuple nCsma
Definition: second.py:42
tuple pointToPoint
Definition: first.py:28
void SetChannelAttribute(std::string n1, const AttributeValue &v1)
Definition: csma-helper.cc:71
holds a vector of std::pair of Ptr and interface index.
static void PopulateRoutingTables(void)
Build a routing database and initialize the routing tables of the nodes in the simulation.
Hold variables of type string.
Definition: string.h:41
Ptr< NetDevice > Get(uint32_t i) const
Get the Ptr stored in this container at a given index.
NetDeviceContainer Install(NodeContainer c)
tuple echoServer
Definition: first.py:43
Create an application which sends a UDP packet and waits for an echo of this packet.
static void Run(void)
Run the simulation.
Definition: simulator.cc:226
Define a Log component with a specific name.
Definition: log.h:201
aggregate IP/TCP/UDP functionality to existing Nodes.
LOG_INFO and above.
Definition: log.h:103
NetDeviceContainer Install(Ptr< Node > node) const
This method creates an ns3::CsmaChannel with the attributes configured by CsmaHelper::SetChannelAttri...
Definition: csma-helper.cc:217
tuple csmaNodes
Definition: second.py:53
Build a set of PointToPointNetDevice objects.
void SetDeviceAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each NetDevice created by the helper.
tuple cmd
Definition: second.py:35
tuple clientApps
Definition: first.py:54
tuple csmaDevices
Definition: second.py:67
Create a server application which waits for input UDP packets and sends them back to the original sen...
void LogComponentEnable(char const *name, enum LogLevel level)
Enable the logging output associated with that log component.
Definition: log.cc:369
void EnablePcapAll(std::string prefix, bool promiscuous=false)
Enable pcap output on each device (which is of the appropriate type) in the set of all nodes created ...
tuple csmaInterfaces
Definition: second.py:78
AttributeValue implementation for Time.
Definition: nstime.h:1055
Time NanoSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1017
Hold an unsigned integer type.
Definition: uinteger.h:44
tuple p2pInterfaces
Definition: second.py:75
holds a vector of ns3::NetDevice pointers
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter...
tuple p2pNodes
Definition: second.py:50
Parse command-line arguments.
Definition: command-line.h:205
tuple p2pDevices
Definition: second.py:61
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:190
tuple echoClient
Definition: first.py:49
tuple serverApps
Definition: first.py:45
Every class exported by the ns3 library is enclosed in the ns3 namespace.
keep track of a set of node pointers.
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
tuple stack
Definition: first.py:34
build a set of CsmaNetDevice objects
Definition: csma-helper.h:46
void SetChannelAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each Channel created by the helper.
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...
void Add(NodeContainer other)
Append the contents of another NodeContainer to the end of this container.
void AddValue(const std::string &name, const std::string &help, T &value)
Add a program argument, assigning to POD.
Definition: command-line.h:498
Ptr< Node > Get(uint32_t i) const
Get the Ptr stored in this container at a given index.
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:993
void Parse(int argc, char *argv[])
Parse the program arguments.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
tuple address
Definition: first.py:37
void EnablePcap(std::string prefix, Ptr< NetDevice > nd, bool promiscuous=false, bool explicitFilename=false)
Enable pcap output the indicated net device.
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="")
Set the base network number, network mask and base address.
bool verbose
tuple csma
Definition: second.py:63
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const