应用VPN实现远程教学的研究

Researching of VPN Implement in Long-distance Education

简述了VPN的实现原理及分类,讨论了VPN隧道协议及其在远程教育中的应用,分析了VPN的安全性、QoS技术,提出了融合传统VPN和MPLS VPN的系统架构,解决视频流的传输及网络拥塞的控制,最后给出一个小型VPN的实现例子。

VPN （ Virtual Private Network） technology has been greatly developed in recent years. In the mean time, long-distance education is becoming more and more important. How to apply VPN technology to make long-distance education more efficient and reliable？ This paper analyses the principle of VPN, discusses how to use different VPN technology in different scenarios. It also describes the security and QoS technology applied in VPN and gives a simple example of setting-up a VPN network.