Most people have heard of SD-WAN but don't know what it actually is. The software-defined wide-area network (SD-WAN or SDWAN) is an application of SDN technology applied to certain WAN connections such as broadband internet, 4G, LTE, or MPLS. SD-WAN connects enterprise networks over large geographic distances. https://www.fieldengineer.com/....sd-wan/sd-wan-vs-mpl