Software-Defined Wide Area Network (SD-WAN) is a technology that uses software-defined networking (SDN) principles to manage, monitor and optimize the performance of Wide Area Networks (WANs). It delivers virtualized resources to wide area network connections over both ordinary broadband Internet and private links. It then uses centralized control for the deployment and monitoring of these virtualized resources for branch office services. The main components of SD-WAN are Edge, Gateway, Controller and the Centralized Management Pane. Edge classifies the traffic packets and enforces policy on the packet flows. Gateway is similar to edge except that it also routes the flows. Controller manages and optimizes the SD-WAN using the Centralized Management Pane. Controller is located in the Cloud while Edge and Gateway can be physical or virtual components.
Network Marvels has been a development partner of a silicon valley based startup for SD-WAN. We co-created the complete product in nine months. Our team was involved in end-to-end activities including planning, design, development and automation. The product development involved use of a special network operating system. All of the firewall rules, policy enforcement, virtual connections, BGP configuration and the component configuration were supported through secure REST API and notifications. Zerotouch was developed so that all the components are set up without any user intervention. For more details, request for a detailed case study from info@networkmarvels.com with this topic as the subject of your email.