LITTLE ROCK, Ark.–(BUSINESS WIRE)–Windstream Enterprise (WE), a premier managed communications service provider, has attained MEF 3.0 SD-WAN services certification for its Fortinet Secure-powered SD-WAN offering, demonstrating the company’s conformance to rigorous specifications established by MEF, the industry’s defining authority. MEF is the world’s leading industry forum responsible for developing standards, certifications and APIs that certify SD-WAN technology and managed service provide