Software Defined – Wide Area Network (SD-WAN) is a combination of technologies designed to offer a simpler approach to the WAN. It’s being driven largely by the decreasing cost of bandwidth and the increase in cloud applications that reside outside of the legacy data center. SD-WAN can be deployed over existing WAN connections, whether they are Internet (DIA, broadband, LTE) or private (MPLS, private line), in order to create a secure, private, fully meshed network. It offers simplified management, quicker turnup, better application performance, improved resiliency, and cost savings when compared to traditional approaches.