https://www.sdnlab.com/20536.html
回顾上一篇文章，笔者挑选了主流SD-WAN方案中最具代表性、也是最能打动客户的4个功能：
1.Application-Aware Routing (基于应用的路由选择)
2.Zero-Touch Provisioning (全自动服务开通)
3.Security, Monitoring, and Analytics (安全，监控，和数据分析)
4.All-in-One uCPE Package (通用白盒CPE， VNF百宝箱)