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As described above, wide area networks are a form of telecommunications network that can connect devices in multiple locations and across the globe. WANs are the largest and most extensive forms of computer networks available today. These networks are typically set up by service providers who then lease their WAN to businesses, schools, government agencies, or the general public. These clients can use the network to forward and store data or communicate with other users, regardless of their location, as long as they have access to the configured WAN. Access can be through a variety of connections, including virtual private networks (VPNs) or circuits, wireless networks, cellular networks, or Internet access.
For international organizations, WANs allow them to complete essential daily tasks without delay. Employees anywhere can use a company’s WAN to share data, communicate with colleagues, or simply stay connected to the company’s top-tier data center. Certified network experts help companies maintain their internal wide area network and other critical IT infrastructure. In this article, we will show you how to create a wide area network.
How to create a wide area network
- Contact a service provider in your area to see what types of WAN services are offered. Common services are T1 and Frame Relay. Business class cable and DSL services may also be offered in your area. After selecting a desired service, the service provider installs their equipment at your location and creates a demarcation point.
- Purchase a router and connect it to the WAN link. If your service provider installs a router as part of the WAN, you will most likely need a separate router to provide access and control to the local area network, or LAN. If your service provider does not provide a router, you must use a router capable of connecting to the WAN circuit. For example, if you purchased a T1 connection, your router must include a T1 interface module.
- Connect the network switch to your router. A network switch aggregates all the connections on the LAN and connects them to the router, which forwards the appropriate traffic over the WAN connection. The most common type of switch-to-router connection is with one or more Ethernet cables. Depending on your network setup, your router may include a built-in switch with enough ports to connect all the devices on the LAN together. However, it is common to have one or more switches in addition to a router.
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