What is SD-WAN?

SD-WAN, or Software-Defined Wide-Area Networking, is a technique for using software to make wide area networks more intelligent and flexible. It typically begins with connecting sites directly to the internet over commodity broadband links instead of sending all traffic back to a regional office via private lines (which often are based on older, expensive technology known like MPLS). Configurations and access policies are centrally managed and easily applied across all sites, removing the need to manual administer each WAN device individually.

Digital transformation, the use of modern, cloud-based applications and technologies to empower new ways of doing business, is driving changes across every industry. The first step for many organizations is to ensure that their increasingly distributed workforce has safe, fast, always-on access from every appropriate location. Unfortunately, traditional ways of connecting widely dispersed stores, branch offices, and remote offices often aren’t up to the challenge. Old hub-and-spoke networks built on private links can quickly buckle under the strain of Office 365, video training and teleconferencing, just to name a few examples. In such environments, IT faces a big challenge: how to optimize network performance without getting stuck on an endless treadmill of throwing money at the problem, upgrading hardware, and reconfiguring the network over and over.

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