WCTG

WCTG Home

Wireless Ad Hoc Networks Home

Projects

People

ns FOR WIRELESS NETWORK SIMULATION

The network simulator (ns) v. 2 was developed by UCB, LLNL, Xerox PARC, USC/ICI, and is currently maintained by USC/ISI.  It is an object-oriented, discrete event simulator that is particularly useful for simulating TCP/IP networks.  ns also has wireless network models and a network animator (nam) tool.  It is freely distributed, and all source code, C++ and Object Tcl (OTcl), is available.  This page provides instructions on getting started with ns.
 

WCTG has ns version 2.1.8ba installed on seal.antd.nist.gov. seal is a single processor PC running Linux.  To run ns on seal, do the following:

• log onto seal using ssh: ssh seal.  telnet is disabled on seal, so you must use ssh.
• Set the DISPLAY environment variable so that you can see X window graphics.
• If using the bash shell, type export DISPLAY=<your-system-name>:0
• If using csh, type: setenv DISPLAY <your-system-name>:0
• Add the following to your PATH environment variable:
• bash: export PATH=/usr/local/ns2/bin:$PATH
• csh: setenv PATH  /usr/local/ns2/bin:$PATH
• To check that your environment is set properly:
• type ns. A % prompt should appear.  Type exit to quit.
• type nam.  The nam console window should appear.
• You are now ready to run ns.

• The ns web site at USC/ISI contains documentation (see two links below), contributed code, tips, and more.
• The ns users manual.
• An online tutorial written by Marc Greis.
• A more simple tutorial from WPI.

For inquiries regarding this project, contact Tim Hall.