Udhay Prakash Blog

Initially, we should get ns or tcl shell installed to work with tcl script.   If you didn't install ns2, click here for the installation procedure. Else, follow the tutorial.  After installing ns-2, type ns in terminal. Then, there appears % symbol, which symbolizes the invokement of tcl shell script. Note(optional):  TCL scripting individually can be practiced with in Linux system with tcl shell scripting.

For the latest information about the ns Network Simulator, go to the ns manual ay http://www.isi.edu/nsnam/ns/   or http://www.isi.edu/nsnam/ns/ns-documentation.html . For examples, go to the downloaded ns package folder at ns-2/tcl/ex. In addition, other tutorials include the Marc Greis’s tutorial and the tutorial by Jae Chung - Mark Claypool. Ns simulator is based on two languages: C++ as the back-end and the oTcl (object-oriented version of tool command language, tcl) as the front-end. NS is a discrete event simulator, where the advance of time depends on the timing of events, which are maintained by a scheduler. Some Esssential Commands List: ns – command to verify the installation of tcl shell script and ns network simulator ns-version – command to return the ns version ns-random – command to return a random number, uniformly distributed between [0-(2 31 -1)]. ns-random var – var  is used to set the seed to random number generator. 

MannaSim framework It is the Script generator used mainly for wireless sensor network research. It was written in TCL and C++ for NS-2 network simulator.  It is used for creating TCL scripts for the front-end activity done in MannaSim framework GUI. MannaSim Installation:  It can be installed in two ways:  1. Installing Mannasim patch   (easier method) 2. Using Mannasim Source code Method 1 - Installing Mannasim patch: This is easier way for installing Mannsim;  But, ensure that you didn't modify the ns-2 distribution files. At the time of writing this blog, the ns-2 distribution is with version 2.29. Step 1:   Click here  to download ns-2.29 all-in-one package from ns site. Step 2:   Click here  to download MannaSim Framework ns-2.29 patch. Step 3: Type the following command on the ns-allinone-2.29 folder: patch -p1 < file _name . diff Step 4: Install ns-2.29 as usual typing ns-allinone-2.29 folder: ...