Networks switches are the core components of Networks. A network switch is an intelligent device that has a function of full-duplex communication and by using the network switch in the industry you can efficiently utilize their bandwidth. Today networks are essential for delivering entertainment to the user end, for supporting the business, and also supports all types of communication. What is Network Switch? A network switch is a device that runs on layer 2 (Data Link Layer) of the OSI Model.  A router or the other user end device that is physically connected with the ports of the network switch directly sends packets to the port of the network switch and the network switch sends them out to the other port of the switch that is directly connected with the internet. Nowa day’s network switch also runs on layer 3 of the OSI Model. Layer 3 network also handles the