Hi,
Thanks for all your replies, which helped me modifying the code. Now i need another information regarding NS2, as we create our code by connecting nodes through links and generating different traffics like TCP/UDP for different node by an apllication of FTP/CBR, and for these we are assigning the different packet size, rate, flow id, queue length, etc.Now i want to generate these traffic and application with all the parameters in a form of loop, how can i write a tcl code for this.if there are n nodes connected in mesh for all the nodes it is difficult to create a traffic and its parameters so it shud be randomly changing by itself, can you guide in doing this work.