What is SD-WAN?
Software-Defined Wide Area Network (SD-WAN) is the application of software-based network technologies to WAN connections to more effectively route all network traffic between headquarters or data centers, remote and branch offices, and the cloud.
More simply, it is the method of leveraging the benefits of the cloud, the bandwidth of broadband and existing enterprise-wide network infrastructure to more efficiently and cost effectively transmit media (data, video, voice) and quickly access cloud applications from every location in the network.
SD-WAN dynamically utilizes multiple available connections (MPLS, broadband, LTE) to find the optimal delivery path for traffic across the entire network, shaping the bandwidth as needed to eliminate jitter and dropped data packets, thereby delivering an optimal user experience regardless of location.
The more sophisticated solutions will first attempt to dynamically steer traffic to the best available link and if the available links show any transmission issues, they will immediately apply on-demand remediation to the link to ensure performance of the high priority applications.