A Discrete-Event Network Simulator
API
nsclick-routing.cc
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2 /*
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16  * Authors: Lalith Suresh <suresh.lalith@gmail.com>
17  */
18 
19 // Network topology
20 //
21 //
22 // 172.16.1.0/24
23 // (1.1) (1.2) (2.1) (2.2)
24 //
25 // eth0 eth0 eth1 eth0
26 // n0 ========= n1 ========= n2
27 // LAN 1 LAN 2
28 //
29 // - UDP flows from n0 to n2 via n1.
30 // - All nodes are Click based.
31 //
32 
33 #include "ns3/core-module.h"
34 #include "ns3/network-module.h"
35 #include "ns3/internet-module.h"
36 #include "ns3/applications-module.h"
37 #include "ns3/csma-module.h"
38 #include "ns3/ipv4-click-routing.h"
39 #include "ns3/ipv4-l3-click-protocol.h"
40 #include "ns3/click-internet-stack-helper.h"
41 
42 using namespace ns3;
43 
44 NS_LOG_COMPONENT_DEFINE ("NsclickRouting");
45 
46 int
47 main (int argc, char *argv[])
48 {
49 #ifdef NS3_CLICK
50  std::string clickConfigFolder = "src/click/examples";
51 
52  CommandLine cmd (__FILE__);
53  cmd.AddValue ("clickConfigFolder", "Base folder for click configuration files", clickConfigFolder);
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 //
66  ClickInternetStackHelper clickinternet;
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 
86  Ipv4AddressHelper ipv4;
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;
102  UdpServerHelper server (port);
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;
114  UdpClientHelper client (i12.GetAddress (1), port);
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 #else
134  NS_FATAL_ERROR ("Can't use ns-3-click without NSCLICK compiled in");
135 #endif
136 }
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.
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.
Definition: data-rate.h:298
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.
Ipv4InterfaceContainer Assign(const NetDeviceContainer &c)
Assign IP addresses to the net devices specified in the container based on the current network prefix...
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 Stop(void)
Tell the Simulator the calling event should be the last one executed.
Definition: simulator.cc:180
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:136
static void Run(void)
Run the simulation.
Definition: simulator.cc:172
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:103
AttributeValue implementation for Time.
Definition: nstime.h:1308
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:44
uint16_t port
Definition: dsdv-manet.cc:45
#define NS_FATAL_ERROR(msg)
Report a fatal error with a message and terminate.
Definition: fatal-error.h:165
#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:1244
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1252
Every class exported by the ns3 library is enclosed in the ns3 namespace.
csma
Definition: second.py:63
cmd
Definition: second.py:35