摘要：This writing aimed to describe thedevelopment of VLAN by considering theimprovement of its quality performance.Switch is used to connect two networks ormore and to be a media in transmittingdata. Without this media, there will be noconnection or data flow. In transmittingdata between computers, cables are needed.The speed of data transmitting isinfluenced by the type of the cable that isused in the network. Packet Tracer 4.1 is astimulator that is released by Cisco Systemvendor. One of its superiority is thewireless device.
