There are two dominant definitions in a WAN. A WAN book definition is a network that covers large geographic areas, typically to connect multiple local area networks (lans). The working definition of a WAN is a network that traverses a public network or a commercial operator using an equal number of WAN technologies.
What are its main components?
The main mechanisms of a WAN are switches, routers, and modems. These components use to be labelled below in the hardware unit.
Devices in unifi Malaysia subscriber spaces are referred to as Customer Space Devices (cpes).
The subscriber owns or leases the CPE from the service provider. The copper or fiber cable connects the CPE to the center or central office closest to the service provider. This wiring is often referred to as a local loop or “last mile”.
DTE / DCE – Devices that put data on a subscriber line are called data circuit devices or data communication devices (dces). Client devices that transmit data to the DCE are called data terminals (dtes). DCE mainly provides an interface to the DTE for a WAN cloud communication connection.
A WAN requires different types of hardware components to make it work. Typical devices you need on a WAN are:
Router – An electronic device that connects a local area network (LAN) to a wide area network (WAN) and manages the process of routing messages between two networks. Works on Layer 3 and makes decisions using IP addresses.
Switch – This use to be a network device which selects a circuit or path to send a unit of data towards its following destination.
Modem – Short for modulator / demodulator, a modem allows a computer to communicate with other computers through telephone lines. Works in Layer 1, where signals are converted from digital to analog and vice versa for transmission and reception.
Wans operate in the OSI model at Layer 1 and Layer 2. Data connection layer and physical layer. Physical layer protocols describe how to offer mechanical, and electrical, functional connections to the services provided by an ISP. The data link layer defines how data is encapsulated for transmission to remote locations.
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