Wide area network (WAN) has been defined in two ways. Firstly, the book definition of wide area network is a network that broadens large geographical locations, usually to interconnect numerous local area networks (LANs). The realistic definition of a WAN is a network that traverses a public network, using one of several WAN technologies.
WANs are normally used to connect LANs and other networks together, so that users and computers in a particular area can communicate with each other. Particular organizations get WANs built for their use. To provide connections from LAN of some organization to the internet, Internet Service Provider build up WAN. Wide Area Networks comes in wide range of size and shapes. A WAN can be private or public, wired or wireless, managed or self-managed and they can be applied through a variety of different technologies.
DTE/DCE devices that place data on the local loop are called data circuit-terminating equipment or data communications equipment (DCE). The customer devices that surpass the data to the DCE are named as data terminal equipment (DTE). The DCE mainly offers an interface for the DTE into the communication link on the WAN cloud.
The central network and access technology options, a converged voice and data solution, a complete range of network security and remote access services are the part of portfolio WAN solutions. The provider for WAN solution fit in the carrier and technologies into a single, end-to-end network solution so that the client relies upon the provider as the only supplier for the whole network. WANs form an appropriate base for several business critical applications which include: * VoIP Phone Service * Remote application access (Citrix) * Transferring of files and sharing of data * Centralized merchant transactions * Video release * Distant user access * Protected access to interior software applications * Compliance requirements * Outsourced system management * Central information storage & backup.
Router It is an electronic device that connects a local area network to a wide area network, and monitors the task of routing messages between the two networks. It operates at third layer, and makes decisions using IP addresses.
Switch A switch is a network device that chooses a path or circuit for transferring a unit of data to its next destination. It operates at layer 2 and uses MAC addresses to throw data to the right destination.
Many ways are there to design a Wide Area Networks. Some solutions go for cheap structure, low bandwidth needs, while others are more towards enterprise class applications.
1Whether VoIP phone service or processing merchant transactions is being installed, network experts can help you by giving you the best solution for your business.
Encapsulation Encapsulation is the packaging of data in a specific protocol header. You need to remember that WANs always operate at the physical layer and the data link layer of the OSI model, and that higher layer protocols like IP are encapsulated when sent across the WAN link. Serial interfaces support a wide range of WAN encapsulation types, which must be manually sorted out. These forms include SDLC, PPP, Frame delay etc. In spite of WAN encapsulation used, it must be identical on both sides of the point to point link.
Low Costing DSL Circuits can be used. By bringing them in use to form your own private network, you will benefit your business by spending less and still maintaining it.
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