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The textbook definition of a WAN is a computer network spanning regions, countries, or even the world. [3] [4] However, in terms of the application of communication protocols and concepts, it may be best to view WANs as computer networking technologies used to transmit data over long distances, and between different networks.
Frame Relay is a standardized wide area network (WAN) technology that specifies the physical and data link layers of digital telecommunications channels using a packet switching methodology. Originally designed for transport across Integrated Services Digital Network (ISDN) infrastructure, it may be used today in the context of many other ...
Network topology is the arrangement of the elements (links, nodes, etc.) of a communication network. [1] [2] Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, [3] industrial fieldbusses and computer networks.
A cell phone connected to a laptop using the USB interface, letting them communicate with each other, is a simple example of a wired personal area network (PAN) Wired personal area networks provide short connections between peripherals. Example technologies include USB, IEEE 1394 and Thunderbolt. [citation needed]
A wide area network (WAN) is a computer network that covers a large geographic area such as a city, country, or spans even intercontinental distances. A WAN uses a communications channel that combines many types of media such as telephone lines, cables, and airwaves.
For example, Ethernet and Frame Relay are common. Newer mobile phone technologies (e.g., GSM, LTE) also use packet switching. Packet switching is associated with connectionless networking because, in these systems, no connection agreement needs to be established between communicating parties prior to exchanging data.
For example, a mesh network or MANET with nodes on buildings, towers, trucks, and planes could also be considered a WWAN. A WWAN may also be a low-power, low-bit-rate wireless WAN, ( LPWAN ), intended to carry small packets of information between things , often in the form of battery operated sensors.
Common types include local area networks (LAN), metropolitan area networks (MAN), and wide area networks (WAN). Local area networks have the coverage of a small geographic area, such as a school, residence, building, or company. [4] [5] [6] Metropolitan area networks cover a larger area, such as a city or state. Wide area networks provide ...