Network switches have varying speeds, capabilities, and sizes. They can support a few devices and even up to thousands of them. Multiple network switches are capable to be connected together to support more devices. The details of how these switches are connected it is called a “network topology.”

And also a network switch is created in such a way that it connects users, applications, and equipment across the board of a network so that they can communicate with one another and share resources. The most basic network switches offer connectivity to devices on a single local-area network (LAN). More advanced switches can connect devices from multiple LANs and may even incorporate basic data security functions.