A Communication Network represents a set of structures and behaviours that connects computer systems or other electronic devices for transmission, routing, and reception of data or data-based communications such as voice and video.
A Communication Network connects two or more Devices. The most basic Communication Network is a single link between two Devices. A Communication Network realizes one or more Paths. It embodies the physical realization of the logical path between Nodes.
A Communication Network can consist of sub-networks. It can aggregate Devices and System Software, for example, to model the routers, switches, and firewalls that are part of the network infrastructure.
Technology. Active Structure.
LAN. Wireless. Wide Area Network.