Introduction to NS-2

Min ChenSchool of Computer Science and Engineering

Seoul National University

Part 1. Installation

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Outline

What is NS-2 ? Installation of Ubuntu Linux Installation of NS-2

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What is NS-2

Full Name: Network Simulator 2 Began as a variant of the REAL network

simulator in 1989 Open Source Software Resource:

ns-2 homepage, including tutorial, manual... BBS and mail list about ns-2 Google

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NS-2 Features

Open Source Discrete event simulator Provides substantial support for simulation

TCP Routing Multicast Protocols …

Wired and Wireless

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Programming Language

NS-2 is written in C++ Otcl (an Object oriented version of Tcl)

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NS-2

Otcl: for the network topology

Otcl is used when we are generating network scenarios for different topologies

Network Topology in NS-2 Network Topology in OPNET6

C++: for the node configuration

C++ is used when we are describing a detail mechanism of node, connection, ...

Node Model in OPNET7

NS-2 Running Platform

Windows On Cygwin (Slow running and millions errors)

Unix and Unix like System Sun Solaris FreeBSD Linux

We use Ubuntu as the OS

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Introduction to Ubuntu

Most Famous Linux Version Open Source Software Default Genome Desktop Latest Version: 9.10 Resource

http://www.ubuntu.com/

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Ubuntu Installation

There is two ways to install Ubuntu in your PC

1)Use the Ubuntu CD to boot your PC and install

2)Install Ubuntu as an application in Windows

I suggest you to start the setup in Windows for the following merits: Setup errors will not damage your Windows System You can delete Ubuntu OS without making changes

on your Windows system Ubuntu 9.10 now supports Win 7

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Install Ubuntu in Windows 7

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Delete Ubuntu

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NS-2 all-in-one package

Download the NS 2.34 all-in-one package from NS-2 website and extract it

The all-in-one package includes ns-2 : the simulation core nam : the network animator xgraph Tcl-debug ...

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tar xfzv ns-allinone-2.34.tar.gz

5 steps Installation of NS-2

5 steps to setup NS-2.34 in Ubuntu 9.10

1.Update your Ubuntu source

2.Install the tools for compile

3.Fix the bug for gcc in otcl-1.13

4.Install ns-all-in-one-2.34 package

5.Register environment parameters in Ubuntu

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1. Update your source

Open your terminal Open source list

Add the following content into your source list

Update the source

deb http://archive.ubuntu.com/ubuntu/ hoary universe main restricted multiversedeb http://security.ubuntu.com/ubuntu/ hoary-security universe main restricted multiversedeb http://archive.ubuntu.com/ubuntu/ hoary-updates main restricted universe multiverse

sudo apt-get update

sudo gedit /etc/apt/sources.list

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2. Install the tools for compile

Use apt-get to install

Make sure all of the packages have been installed successfully

sudo apt-get install build-essentialsudo apt-get install tcl8.4 tcl8.4-dev tk8.4 tk8.4-dev gcc-4.3sudo apt-get install libxmu-dev libxmu-headers

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3. Fix the bugs for gcc in otcl-1.13

in ~/ns-allinone-2.34/otcl-1.13/ Edit file ' Makefile.in ' 7th line From : CC = @CC@ To : CC = gcc-4.3

Else an error will occur when installation: otcl-1.13 make failed! Exiting

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4. Install ns-allinone-2.34

Enter the ns-allinone-2.34 directory

Type in:

Wait until the installation complete If errors occur, you can read the message and

search for the solution in google

./install

cd ns-allinone-2.34

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5. Environment Parameter

For the ubuntu to find your ns-2 path, you have to register the enviroment parameter

Open the bash resource file

Add the following section into the file and saveexport NS_HOME=/home/weicai/ns-allinone-2.34

export PATH=$NS_HOME/tcl8.4.18/unix:$NS_HOME/tk8.4.18/unix:$NS_HOME/bin:$PATH

export LD_LIBRARY_PATH=$NS_HOME/tcl8.4.18/unix:$NS_HOME/tk8.4.18/unix:$NS_HOME/otcl-1.13:$NS_HOME/lib:

$LD_LIBRARY_PATH

export TCL_LIBRARY=$NS_HOME/tcl8.4.18/library

sudo gedit /etc/bash.bashrc

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Verify the completeness of NS-2

Restart your terminal and type in

If ”%” is shown, then you have successfully install NS-2 in your ubuntu system

Type in

If the Network Animator is shown, then you have successfully install nam

ns

nam

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Questions?

Thank you !