SD-WAN is a high-speed, secure and stable connection service provided by Guangtong Network，Based on Guangtong network SD-WAN network to meet the Internet needs of different regions within the network, Help enterprises quickly build high-quality private networks, and realize various scenarios such as office acceleration and networking of large group companies. The enterprise directly through the Internet to achieve each branch and the light SD-WAN POP point "last kilometer" to connect, It can reduce the cost burden of private line access for enterprises, save expenses, and provide a secure end-to-end data communication method.