wan network definition

WAN network definition, WANs are large communication networks that connect locations over a wide geographical area, including cities, states, countries, and continents. The latest development in this area is software defined WAN technology (SD-WAN) — a specific application of software defined networking applied to wide area network connections. The virtualized server and storage structure of the modern data center is an example of software defined networking. It makes the network more dynamic, manageable, and adaptable  For example, a WAN often connects branch offices to a central corporate network or to connect data centers located great distances away. With SD-WAN, more of the network’s controls are moved to the “cloud” using software. That lowers costs, reduces complexity, and increases flexibility. Plus, SD-WANs provide better security.

WANS also provide some key technical advantages as well. In addition to providing support for a wide variety of applications and a large number of terminals, WANs allow companies to expand their networks through plug-in connections over locations and boost interconnectivity by using gateways, bridges, and routers. Plus, by centralizing network management and monitoring of use and performance, WANS ensure maximum availability and reliability.