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.
SD-WAN offers your business advantage over traditional MPLS networks. Let's take a look at some of those:
  • Dramatically impact the entire enterprise networking ecosystem. Geographic boundaries are erased
  • Visibility, scalability, performance, and control are enhanced.
  • SD-WAN comes with no bandwidth penalties.
For more info:  mpls vs sd-wan
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