A Discrete-Event Network Simulator
API
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fragmentation-ipv6-two-MTU.cc
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1/*
2 * Copyright (c) 2008-2009 Strasbourg University
3 * Copyright (c) 2013 Universita' di Firenze
4 *
5 * SPDX-License-Identifier: GPL-2.0-only
6 *
7 * Author: David Gross <gdavid.devel@gmail.com>
8 * Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
9 * Modified by Tommaso Pecorella <tommaso.pecorella@unifi.it>
10 */
11
12// Network topology
13// //
14// // Src n0 r n1 Dst
15// // | _ |
16// // MTU ====|_|==== MTU
17// // 5000 router 1500
18// //
19// // - Tracing of queues and packet receptions to file "fragmentation-ipv6-two-mtu.tr"
20
21#include "ns3/applications-module.h"
22#include "ns3/core-module.h"
23#include "ns3/csma-module.h"
24#include "ns3/internet-module.h"
25#include "ns3/ipv6-routing-table-entry.h"
26#include "ns3/ipv6-static-routing-helper.h"
27
28#include <fstream>
29
30using namespace ns3;
31
32NS_LOG_COMPONENT_DEFINE("FragmentationIpv6TwoMtuExample");
33
34int
35main(int argc, char** argv)
36{
37 bool verbose = false;
38
39 CommandLine cmd(__FILE__);
40 cmd.AddValue("verbose", "turn on log components", verbose);
41 cmd.Parse(argc, argv);
42
43 if (verbose)
44 {
45 LogComponentEnable("Ipv6L3Protocol", LOG_LEVEL_ALL);
46 LogComponentEnable("Icmpv6L4Protocol", LOG_LEVEL_ALL);
47 LogComponentEnable("Ipv6StaticRouting", LOG_LEVEL_ALL);
48 LogComponentEnable("Ipv6Interface", LOG_LEVEL_ALL);
49 LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_ALL);
50 LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_ALL);
51 }
52 LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
53
54 NS_LOG_INFO("Create nodes.");
55 Ptr<Node> n0 = CreateObject<Node>();
56 Ptr<Node> r = CreateObject<Node>();
57 Ptr<Node> n1 = CreateObject<Node>();
58
59 NodeContainer net1(n0, r);
60 NodeContainer net2(r, n1);
61 NodeContainer all(n0, r, n1);
62
63 NS_LOG_INFO("Create IPv6 Internet Stack");
64 InternetStackHelper internetv6;
65 internetv6.Install(all);
66
67 NS_LOG_INFO("Create channels.");
68 CsmaHelper csma;
69 csma.SetChannelAttribute("DataRate", DataRateValue(5000000));
70 csma.SetChannelAttribute("Delay", TimeValue(MilliSeconds(2)));
71 NetDeviceContainer d2 = csma.Install(net2);
72 csma.SetDeviceAttribute("Mtu", UintegerValue(5000));
73 NetDeviceContainer d1 = csma.Install(net1);
74
75 NS_LOG_INFO("Create networks and assign IPv6 Addresses.");
76 Ipv6AddressHelper ipv6;
77 ipv6.SetBase(Ipv6Address("2001:1::"), Ipv6Prefix(64));
78 Ipv6InterfaceContainer i1 = ipv6.Assign(d1);
79 i1.SetForwarding(1, true);
80 i1.SetDefaultRouteInAllNodes(1);
81 ipv6.SetBase(Ipv6Address("2001:2::"), Ipv6Prefix(64));
82 Ipv6InterfaceContainer i2 = ipv6.Assign(d2);
83 i2.SetForwarding(0, true);
84 i2.SetDefaultRouteInAllNodes(0);
85
86 Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper>(&std::cout);
87 Ipv6RoutingHelper::PrintRoutingTableAt(Seconds(0), n0, routingStream);
88
89 /* Create a UdpEchoClient and UdpEchoServer application to send packets from n0 to n1 via r */
90 uint32_t packetSize = 4096;
91 uint32_t maxPacketCount = 5;
92
93 UdpEchoClientHelper echoClient(i2.GetAddress(1, 1), 42);
94 echoClient.SetAttribute("PacketSize", UintegerValue(packetSize));
95 echoClient.SetAttribute("MaxPackets", UintegerValue(maxPacketCount));
96 ApplicationContainer clientApps = echoClient.Install(net1.Get(0));
97 clientApps.Start(Seconds(2.0));
98 clientApps.Stop(Seconds(20.0));
99
100 UdpEchoServerHelper echoServer(42);
101 ApplicationContainer serverApps = echoServer.Install(net2.Get(1));
102 serverApps.Start(Seconds(0.0));
103 serverApps.Stop(Seconds(30.0));
104
105 AsciiTraceHelper ascii;
106 csma.EnableAsciiAll(ascii.CreateFileStream("fragmentation-ipv6-two-mtu.tr"));
107 csma.EnablePcapAll(std::string("fragmentation-ipv6-two-mtu"), true);
108
109 NS_LOG_INFO("Run Simulation.");
110 Simulator::Run();
111 Simulator::Destroy();
112 NS_LOG_INFO("Done.");
113
114 return 0;
115}
ns3::ApplicationContainer
holds a vector of ns3::Application pointers.
Definition application-container.h:33
ns3::AsciiTraceHelper
Manage ASCII trace files for device models.
Definition trace-helper.h:163
ns3::AsciiTraceHelper::CreateFileStream
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.
Definition trace-helper.cc:182
ns3::CommandLine
Parse command-line arguments.
Definition command-line.h:221
ns3::CsmaHelper
build a set of CsmaNetDevice objects
Definition csma-helper.h:37
ns3::InternetStackHelper
aggregate IP/TCP/UDP functionality to existing Nodes.
Definition internet-stack-helper.h:81
ns3::InternetStackHelper::Install
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
Definition internet-stack-helper.cc:359
ns3::Ipv6AddressHelper
Helper class to auto-assign global IPv6 unicast addresses.
Definition ipv6-address-helper.h:73
ns3::Ipv6AddressHelper::SetBase
void SetBase(Ipv6Address network, Ipv6Prefix prefix, Ipv6Address base=Ipv6Address("::1"))
Set the base network number, network prefix, and base interface ID.
Definition ipv6-address-helper.cc:59
ns3::Ipv6AddressHelper::Assign
Ipv6InterfaceContainer Assign(const NetDeviceContainer &c)
Allocate an Ipv6InterfaceContainer with auto-assigned addresses.
Definition ipv6-address-helper.cc:209
ns3::Ipv6Address
Describes an IPv6 address.
Definition ipv6-address.h:38
ns3::Ipv6InterfaceContainer
Keep track of a set of IPv6 interfaces.
Definition ipv6-interface-container.h:29
ns3::Ipv6InterfaceContainer::SetForwarding
void SetForwarding(uint32_t i, bool state)
Set the state of the stack (act as a router or as an host) for the specified index.
Definition ipv6-interface-container.cc:86
ns3::Ipv6InterfaceContainer::SetDefaultRouteInAllNodes
void SetDefaultRouteInAllNodes(uint32_t router)
Set the default route for all the devices (except the router itself).
Definition ipv6-interface-container.cc:93
ns3::Ipv6InterfaceContainer::GetAddress
Ipv6Address GetAddress(uint32_t i, uint32_t j) const
Get the address for the specified index.
Definition ipv6-interface-container.cc:50
ns3::Ipv6Prefix
Describes an IPv6 prefix.
Definition ipv6-address.h:444
ns3::Ipv6RoutingHelper::PrintRoutingTableAt
static void PrintRoutingTableAt(Time printTime, Ptr< Node > node, Ptr< OutputStreamWrapper > stream, Time::Unit unit=Time::S)
prints the routing tables of a node at a particular time.
Definition ipv6-routing-helper.cc:58
ns3::NetDeviceContainer
holds a vector of ns3::NetDevice pointers
Definition net-device-container.h:32
ns3::NodeContainer
keep track of a set of node pointers.
Definition node-container.h:29
ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition mpi-test-fixtures.h:37
ns3::Simulator::Destroy
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition simulator.cc:131
ns3::Simulator::Run
static void Run()
Run the simulation.
Definition simulator.cc:167
ns3::UdpEchoClientHelper
Create an application which sends a UDP packet and waits for an echo of this packet.
Definition udp-echo-helper.h:41
ns3::UdpEchoServerHelper
Create a server application which waits for input UDP packets and sends them back to the original sen...
Definition udp-echo-helper.h:25
ns3::UintegerValue
Hold an unsigned integer type.
Definition uinteger.h:34
uint32_t
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition log.h:191
NS_LOG_INFO
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition log.h:264
ns3::CreateObject
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
Definition object.h:619
ns3::Create
Ptr< T > Create(Ts &&... args)
Create class instances by constructors with varying numbers of arguments and return them by Ptr.
Definition ptr.h:436
ns3::Seconds
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition nstime.h:1308
ns3::MilliSeconds
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition nstime.h:1320
first.echoClient
echoClient
Definition first.py:48
first.serverApps
serverApps
Definition first.py:43
first.echoServer
echoServer
Definition first.py:41
first.clientApps
clientApps
Definition first.py:53
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
ns3::LogComponentEnable
void LogComponentEnable(const std::string &name, LogLevel level)
Enable the logging output associated with that log component.
Definition log.cc:291
ns3::LOG_LEVEL_ALL
@ LOG_LEVEL_ALL
Print everything.
Definition log.h:105
ns3::LOG_LEVEL_INFO
@ LOG_LEVEL_INFO
LOG_INFO and above.
Definition log.h:93
verbose
bool verbose
Definition openflow-switch.cc:42
packetSize
static const uint32_t packetSize
Packet size generated at the AP.
Definition wifi-power-adaptation-distance.cc:96