A design of SD-WAN-oriented wide area network access

This article proposes a converged SD-WAN architecture for the lack of flexibility of the existing SD-WAN architecture. The architecture takes the SDN controller as the core of the entire SD-WAN and deploys it in the corporate headquarters. Different from other SDN-WAN solutions, the forwarding layer of the integrated SD-WAN architecture uses Customer Premise Equipment (CPE)and OpenFlow switches as the main equipment to complete data forwarding and receiving functions.