Ethernet priority

A parameter that is set to determine the priority of accessing a network. In a shared local area network (LAN) environment, such as Ethernet, many stations might contend for access to the network. Access is on a first-come, first-serve basis. Two stations might try to access the network at the same time, which causes both stations to back off and wait before trying again. This process is minimized for switched Ethernet, where only one station is connected to a switch port. Ethernet priority schemes have been developed by a number of vendors.