Ralph Santitoro is a MEF Distinguished Fellow and Head of SDN/NFV/SD-WAN Services at Fujitsu Network Communications. Ralph is a lead contributor to MEF's SD-WAN work and authored MEF's "Understanding SD-WAN Managed Services" paper. At Fujitsu, he and his team defined, developed and launched SD-WAN-as-a-Service, an over-the-top, subscription-based SD-WAN managed service.