实验一

前期准备

1. 安装相关依赖

sudo apt-get install gcc g++ python python-dev //C++和python安装，必装sudo apt-get install mercurial //NS3代码维护使用的源码版本控制管理系统sudo apt-get install bzr //运行python绑定ns-3-dev需要bazaar这个组件sudo apt-get install libgtk2.0-0 libgtk2.0-dev //基于GTK的配置系统sudo apt-get install gdb valgrind //调试工具sudo apt-get install doxygen graphviz imagemagick  //文档生成器sudo apt-get install texlive texlive-latex-extra //文档生成器，从源代码中生成说明文档     sudo apt-get install texinfo dia texlive-extra-utils texi2html //ns-3手册和tutorial编写查看工具sudo apt-get install flex bison //仿真必需的词法分析器和语法分析生成器，必装sudo apt-get install libgoocanvas-dev //部分移动场景仿真的可视化测试需要这个组件sudo apt-get install tcpdump //读取pcap的packet traces，即包嗅探器sudo apt-get install sqlite sqlite3 libsqlite3-dev //支持统计特性的数据库软件sudo apt-get install libxml2 //xml的配置存储软件sudo apt-get install python-pygraphviz python-kiwi python-pygoocanvas //Gustavo's ns-3-pyviz的可视化软件sudo apt-get install qt4-qmakesudo apt-get install qt4-dev-tools

2. 问题：有部分包用apt-get搜索不到，可能是仓库里删除了，不过最后运行可视化程序也没出错

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libgoocanvas-dev

3. 结果：大部分包安装成功

安装编译ns3

1. 下载ns3下载程序

   在home目录下新建tarballs目录；

   用hg命令下载tar.bz文件；

   解压缩；

mkdir tarballscd tarballswget http://www.nsnam.org/release/ns-allinone-3.28.tar.bz2tar xjf ns-allinone-3.28.tar.bz2

2. 下载ns3主程序and编译

   进入ns3目录；

   执行下载程序；

   清除整个build目录；

   打开debug并开启例子及帮助；

cd ns-allinone-3.28./build.py cd ns-3.28./waf distclean./waf configure --build-profile=debug --enable-examples --enable-tests./waf build 

编程

1. 编写cpp文件

   文件目录：ns3/scratch/ns3route.cc

//ns3routing.cc#include <iostream>#include <fstream>#include <string>#include <cassert>#include "ns3/core-module.h"#include "ns3/network-module.h"#include "ns3/csma-module.h"#include "ns3/internet-module.h"#include "ns3/point-to-point-module.h"#include "ns3/applications-module.h"#include "ns3/ipv4-global-routing-helper.h"#include "ns3/netanim-module.h"using namespace ns3;NS_LOG_COMPONENT_DEFINE ("DynamicGlobalRoutingExample");int main (int argc, char *argv[]){// 配置全局路由算法的参数。The below value configures the default behavior of global routing.// 默认情况下是禁用的，相应借口事件时候，设为trueConfig::SetDefault ("ns3::Ipv4GlobalRouting::RespondToInterfaceEvents", BooleanValue (true));CommandLine cmd;cmd.Parse (argc, argv);//创建节点NS_LOG_INFO ("Create nodes.");NodeContainer c;c.Create (7);NodeContainer n0n2 = NodeContainer (c.Get (0), c.Get (2));NodeContainer n1n2 = NodeContainer (c.Get (1), c.Get (2));NodeContainer n5n6 = NodeContainer (c.Get (5), c.Get (6));NodeContainer n1n6 = NodeContainer (c.Get (1), c.Get (6));NodeContainer n2345 = NodeContainer (c.Get (2), c.Get (3), c.Get (4), c.Get (5));InternetStackHelper internet;internet.Install (c);// 创建第一次没有任何ip寻址信息的信道NS_LOG_INFO ("Create channels.");PointToPointHelper p2p;p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));NetDeviceContainer d0d2 = p2p.Install (n0n2);NetDeviceContainer d1d6 = p2p.Install (n1n6);NetDeviceContainer d1d2 = p2p.Install (n1n2);p2p.SetDeviceAttribute ("DataRate", StringValue ("1500kbps"));p2p.SetChannelAttribute ("Delay", StringValue ("10ms"));NetDeviceContainer d5d6 = p2p.Install (n5n6);// 创建第一次没有任何ip寻址信息的信道CsmaHelper csma;csma.SetChannelAttribute ("DataRate", StringValue ("5Mbps"));csma.SetChannelAttribute ("Delay", StringValue ("2ms"));NetDeviceContainer d2345 = csma.Install (n2345);// 添加ip地址NS_LOG_INFO ("Assign IP Addresses.");Ipv4AddressHelper ipv4;ipv4.SetBase ("10.1.1.0", "255.255.255.0");ipv4.Assign (d0d2);ipv4.SetBase ("10.1.2.0", "255.255.255.0");ipv4.Assign (d1d2);ipv4.SetBase ("10.1.3.0", "255.255.255.0");Ipv4InterfaceContainer i5i6 = ipv4.Assign (d5d6);ipv4.SetBase ("10.250.1.0", "255.255.255.0");ipv4.Assign (d2345);ipv4.SetBase ("172.16.1.0", "255.255.255.0");Ipv4InterfaceContainer i1i6 = ipv4.Assign (d1d6);// 创建路由器节点，初始化路由选择数据库，设置路由表节点。Ipv4GlobalRoutingHelper::PopulateRoutingTables ();// 创建时断时续的发送数据报应用。NS_LOG_INFO ("Create Applications.");uint16_t port = 9;   // Discard port (RFC 863)OnOffHelper onoff ("ns3::UdpSocketFactory",InetSocketAddress (i5i6.GetAddress (1), port));onoff.SetConstantRate (DataRate ("2kbps"));onoff.SetAttribute ("PacketSize", UintegerValue (50));ApplicationContainer apps = onoff.Install (c.Get (1));apps.Start (Seconds (1.0));apps.Stop (Seconds (10.0));OnOffHelper onoff2 ("ns3::UdpSocketFactory",InetSocketAddress (i1i6.GetAddress (1), port));onoff2.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));onoff2.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));onoff2.SetAttribute ("DataRate", StringValue ("2kbps"));onoff2.SetAttribute ("PacketSize", UintegerValue (50));ApplicationContainer apps2 = onoff2.Install (c.Get (1));apps2.Start (Seconds (11.0));apps2.Stop (Seconds (16.0));// 接收数据包PacketSinkHelper sink ("ns3::UdpSocketFactory",Address (InetSocketAddress (Ipv4Address::GetAny (), port)));apps = sink.Install (c.Get (6));apps.Start (Seconds (1.0));apps.Stop (Seconds (10.0));PacketSinkHelper sink2 ("ns3::UdpSocketFactory",Address (InetSocketAddress (Ipv4Address::GetAny (), port)));apps2 = sink2.Install (c.Get (6));apps2.Start (Seconds (11.0));apps2.Stop (Seconds (16.0));AsciiTraceHelper ascii;Ptr<OutputStreamWrapper> stream = ascii.CreateFileStream ("dynamic-global-routing.tr");p2p.EnableAsciiAll (stream);csma.EnableAsciiAll (stream);internet.EnableAsciiIpv4All (stream);p2p.EnablePcapAll ("dynamic-global-routing");csma.EnablePcapAll ("dynamic-global-routing", false);Ptr<Node> n1 = c.Get (1);Ptr<Ipv4> ipv41 = n1->GetObject<Ipv4> ();uint32_t ipv4ifIndex1 = 2;Simulator::Schedule (Seconds (2),&Ipv4::SetDown,ipv41, ipv4ifIndex1);Simulator::Schedule (Seconds (4),&Ipv4::SetUp,ipv41, ipv4ifIndex1);Ptr<Node> n6 = c.Get (6);Ptr<Ipv4> ipv46 = n6->GetObject<Ipv4> ();uint32_t ipv4ifIndex6 = 2;Simulator::Schedule (Seconds (6),&Ipv4::SetDown,ipv46, ipv4ifIndex6);Simulator::Schedule (Seconds (8),&Ipv4::SetUp,ipv46, ipv4ifIndex6);Simulator::Schedule (Seconds (12),&Ipv4::SetDown,ipv41, ipv4ifIndex1);Simulator::Schedule (Seconds (14),&Ipv4::SetUp,ipv41, ipv4ifIndex1);// 查探路由表Ipv4GlobalRoutingHelper g;Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper> ("dynamic-global-routing.routes", std::ios::out);g.PrintRoutingTableAllAt (Seconds (12), routingStream);//设置生成xml文件，并确定各个节点的位置AnimationInterface animsd("ns3routing.xml");animsd.SetConstantPosition(c.Get(0),0,0);animsd.SetConstantPosition(c.Get(1),0,40);animsd.SetConstantPosition(c.Get(2),20,20);animsd.SetConstantPosition(c.Get(3),80,20);animsd.SetConstantPosition(c.Get(4),40,20);animsd.SetConstantPosition(c.Get(5),60,20);animsd.SetConstantPosition(c.Get(6),60,40);//开始仿真NS_LOG_INFO ("Run Simulation.");Simulator::Run ();Simulator::Destroy ();NS_LOG_INFO ("Done.");}

2. 编译

sheli@ubuntu:/home/tarballs/ns-allinone-3.28/ns-3.28$ sudo ./waf
Waf: Entering directory `/home/tarballs/ns-allinone-3.28/ns-3.28/build'
[ 935/2709] Compiling scratch/subdir/scratch-simulator-subdir.cc
[ 936/2709] Compiling scratch/scratch-simulator.cc
[2322/2709] Compiling scratch/ns3route.cc
[2656/2709] Linking build/scratch/ns3route
[2672/2709] Linking build/scratch/subdir/subdir
[2692/2709] Linking build/scratch/scratch-simulator

sheli@ubuntu:/home/tarballs/ns-allinone-3.28/ns-3.28$ sudo ./waf --run scratch/ns3route
Waf: Entering directory `/home/tarballs/ns-allinone-3.28/ns-3.28/build'
Waf: Leaving directory `/home/tarballs/ns-allinone-3.28/ns-3.28/build'
Build commands will be stored in build/compile_commands.json
'build' finished successfully (1.739s)

3. 执行

   打开NetAnim图形化界面

sheli@ubuntu:/home/tarballs/ns-allinone-3.28/netanim-3.108$ ./NetAnim 

选取xml文件（ns3routing.xml）

实验结果