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首先介绍基于SDN架构的软件定义安全SDS系统架构及VPN技术相关介绍,重点介绍了Overlay VPN技术。该技术能为中小企业提供低成本、高性能、易使用、安全的VPN服务。通过Overlay VPN预先在网络中部署中间转发节点v PE,SDS集中式控制器通过智能选路算法,为用户提供有保障的VPN服务。此外,还分析了Overlay VPN的架构、控制平面和数据平面的流程,并提出实现技术优化的方法和发展方向。
This paper introduces the architecture of software-defined secure SDS based on SDN architecture and the related introduction of VPN technology. The emphasis is on Overlay VPN technology. The technology for small and medium enterprises to provide low-cost, high performance, easy to use, secure VPN services. Pre-emptively deploy intermediate forwarding nodes in the network through Overlay VPNs v PEs and SDS centralized controllers provide users with guaranteed VPN services through intelligent routing algorithms. In addition, the architecture of Overlay VPN, the control plane and the data plane are also analyzed, and the methods and development direction of technology optimization are proposed.