SD-WAN has quickly become the go-to technology for enterprises seeking to leverage the cloud and embrace digital transformation. Yet, much confusion still exists about what exactly is an SD-WAN, and how the technology works.
Just a few short years ago building a WAN was a rather difficult undertaking that relied on dedicated connections, proprietary hardware, and a significant amount of management and orchestration. Those traditional WAN deployments proved to be rigid, unforgiving, and very difficult to maintain and modify when enterprises started to leverage the cloud.
SD-WANs arrived on the scene to overcome the limitations of traditional WAN design. They addressed many of the networking challenges confronting enterprises. At the same time, they left behind numerous challenges when integrating cloud technologies, securing branch offices or dealing with mobile users.