Comprehensive Study of Network Simulation & Step to Step Installation of NS-2.35 on Kubuntu 14.04

In the comprehensive computer network's research area, it is very expensive to design a whole network, without the simulation process because, if we design with actual equipment's, then it may be very expensive and take more time. So by the help of network simulation tools, we can create cost effective and time saving scenario. Different types of wire and wireless networks, can be deployed by the help of, simulation tools. Computer network simulators are also useful, in allowing the network designers, to test new networking protocols or, to change the existing protocols, or create its own protocols in a controlled and reproducible approach. In this paper, we have presented the comprehensive survey, on current network simulators like Net Sim, OPNET, NS-2, NS-3, OMNeT++, REAL, J-Sim and QualNet. This paper is a comprehensive reference source, for those who feel the difficulty, to select the appropriate network simulators, for their research requirements, based on advantage and disadvantage of various network simulators. We will be introducing an overview of ns2, its installation in Kubuntu 14.04 and its scripting.