Public Internet WANs for Branch Office Networking?
Can the public Internet support reliable enterprise wide area communications. Yes, it now seems. And data center networking seems to be a key driver.
International Data Corporation estimates global SD-WAN revenues will exceed $6 billion in 2020 with a compound annual growth rate (CAGR) of more than 90 percent between 2015 and 2020.
Gartner predicts 30 percent of enterprises will actually deploy SD-WAN technology in their branch offices by the end of 2019.
SD-WAN is a networking technique that uses the public Internet to connect dispersed sites within an enterprise network, including branch offices.
Unlike earlier WAN technology that typically involves fixed circuits and proprietary hardware, SD-WAN is a cloud-based service.