Examples are computers, a DSL modem with Ethernet interface and wireless access point.
If the network in question is a local area network (LAN) or wide area network (WAN), every LAN or WAN node that participates on the data link layer must have a network address, typically one for each network interface controller it possesses. In data communication, a physical network node may either be data communication equipment (DCE) such as a modem, hub, bridge or switch or data terminal equipment (DTE) such as a digital telephone handset, a printer or a host computer. A passive distribution point such as a distribution frame or patch panel is consequently not a node. A physical network node is an electronic device that is attached to a network, and is capable of creating, receiving, or transmitting information over a communication channel. The definition of a node depends on the network and protocol layer referred to. In telecommunications networks, a node ( Latin: nodus, ‘knot’) is either a redistribution point or a communication endpoint. For other uses, see Node (disambiguation).
This article is about a point within a telecommunications network.
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