A software-defined wide area network is a type of computer network that allows the bounding of multiple internet access resources, such as cables, digital subscriber lines (DSL), and cellular or any other IP transport to provide high throughput data channels. The global SD-WAN market is projected to grow rapidly and reach a valuation of $53 billion by the end of 2030. North America is expected to hold a significant dominance of North America in the global SD WAN market. The appliances segment in the SD-wAN market expected to gain significant share, owing to increasing adoption of cloud platforms.
Source: https://www.helpnetsecurity.com/2021/01/19/worldwide-sd-wan-market/