NS2 is a well known term in the field of network research. It is a discrete event simulator that is quite popular amongst engineers in this field. Many types of simulation can be conducted with the help of this application. The simulations can be done for both wired and wireless networks. This simulator and its functionalities have been evolving continuously over the years. Many people find it hard to stay abreast of the latest modifications, and that is why they prefer to take the help of experts to help them when they have to use it.