Main Landmark: This Debate Several Routing Protocols Performance Assessment of Routing Protocols (AODV: Ad hoc On Demand Distance Vector, DSR: Dynamic Source Routing protocol and AOMDV: Ad-hoc On-demand Multipath Distance Vector Routing), Explain Installation of NS2, Clarify Operation of Network Simulator 2 (NS2), Use of Scripts in NS2 Explain use of Bonnmotion utility Explain Use of Gnuplot Graph Utility Express Performance Parameter of Routing Protocols, Explain Node, CBR, TCL Script and Mobility models.