In the extreme case (i.e., micro-segmentation), each device is directly connected to a switch port dedicated to the device. In contrast to an Ethernet hub, there is a separate collision domain on each switch port.SummaryA network switch (also called switching hub, bridging hub, Ethernet switch, and—by the —MAC bridge ) is that connects devices on a by using to receive a. A switch is a device in a that connects other devices together. Multiple data cables are plugged into a switch to enable communication between different networked devices. Switches manage th. Switches are most commonly used as the network connection point for hosts at the edge of a network. In the and similar network architectures, switches are also used deeper in t.