Software-Defined WAN, or SD-WAN for short, is a new technology that gives new meaning to wide area networks. An SD-WAN starts out at the same branch office, then goes through an SD-WAN router, which sends the signal over DSL, fiber optics or LTE connections, then over the public internet, and then through wired connections – DSL or fiber optics – into another SD-WAN router, and then int the HQ data center or a cloud provider.

Sourced through Scoop.it from: blog.pslightwave.com