What is SD WAN?
Due to work style reforms and teleworking, which has spread rapidly in recent years, the number of Internet connection bases has increased significantly. Responding to increasing traffic will continue to be an unavoidable issue, and more companies will be forced to build swift and flexible networks in order to improve the performance of their communication environments.
"SD WAN" is attracting attention as a solution that can solve these problems, allowing you to build a virtual network and flexibly select network lines. This time, we will explain the outline and mechanism of SD WAN, and the merits and challenges of introducing it.
SD WAN (Software Defined Wide Area Network) is a technology that builds a virtual WAN on a WAN built with physical network equipment and manages it using software . It is possible to build a virtual network by combining Internet VPN or IP VPN (MPLS) with software. In addition, not only communication between bases in Japan but also global communication between bases in Japan and overseas can be centrally managed.
A WAN is a network that consists of physical devices and aims to connect geographically distant bases, but in that conventional services require a lot of resources and time to set up, multiple bases are connected. It was a big challenge for the company that owns it.
To address these challenges, SD WAN has become an important tool for changing the way enterprises approach network architectures and ensuring WAN fault tolerance and performance.