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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.
A router in a local area network (LAN) of a single organization is called an interior router. A router that is operated in the Internet backbone is described as exterior router. While a router that connects a LAN with the Internet or a wide area network (WAN) is called a border router, or gateway router. [24]
A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, campus, or building, [1] [2] [3] and has its network equipment and interconnects locally managed. LANs facilitate the distribution of data and sharing network devices, such as printers.
Voice/WAN interface cards (VWICs) can support voice, data, and voice and data applications, depending on the capabilities of the router in which the VWIC is installed." [1] The WIC is supported by many Cisco devices, particularly their branch routers including the 2500 series routers and its successors.
When a router includes this device, it is referred to as a wireless router, which is predominantly the case nowadays. A gateway establishes physical and data link layer connectivity to a WAN like the Internet. Home routers provided by internet service providers (ISP) usually have the modem integrated within the unit. It is effectively a client ...
In computer networking, an edge device is a device that provides an entry point into enterprise or service provider core networks. [1] Examples include routers, [2] routing switches, integrated access devices (IADs), multiplexers, and a variety of metropolitan area network (MAN) and wide area network (WAN) access devices. Edge devices also ...
A computer network is a set of computers sharing resources located on or ... and IEEE 802.1X defines a port-based network access control ... (WAN) using a router.
The WAN Interface Card (WIC) may contain an integrated CSU/DSU that can be inserted into a router slot. An example of a WIC is the 1-port 56/64-kbit/s DSU/CSU WIC (WIC-1DSU-56K4) by Cisco Systems. DTE is generally a router, but can also be a terminal, computer, printer, or fax machine if they connect directly to the service provider network.