4.2.2 Wired Network Technologies
Although many home network devices support wireless communications, there are still a few applications where devices benefit from a wired switch connection that is not shared with other users on the network.
The most commonly implemented wired protocol is the Ethernet protocol. Ethernet uses a suite of protocols that allow network devices to communicate over a wired LAN connection. An Ethernet LAN can connect devices using many different types of wiring media.