NETWORK EMULATION SYSTEM AND METHOD FOR SUPPORTING THE VARIOUS NETWORK ENVIRONMENTS IN THE ROUTER

PURPOSE: A network emulation system for supporting various network environments in a sharer and a method thereof are provided to test the load of a large-scale online server in various network environments. CONSTITUTION: A packet filtering unit(110) selectively extracts only specific packets among received packets. A packet controller(120) creates a large-scale specific packet through a change or copy of the filtered specific packets. A buffer controller(140) classifies the created large-scale specific packet into a plurality of bandwidths. The buffer controller transmits the large-scale specific packet through a communications network corresponding to a target bandwidth to a server(150).