Network Simulation Mechanism Research Based on NS2

Network simulation is one of the efficient analysis tools to study the technology of communication networks.Employing an emulation capability in network simulation provides the ability for real-world traffic to interact with a simulation.This paper firstly introduces the architecture of NS2 simulator,and describes the design of simulation,emphatically analyzes the design and implementation of the emulation facility in the NS2 simulator.And through a network simulation example,elaborated the NS2 network simulation process and the result analysis method.