摘要
IPsec在用户端设备使用封装或加密技术,在公共网络上建立安全的隧道连接,将VPN功能都集成在CPE设备之中,管理维护费用高,传输效率较低;而MPLS相比传统VPN而言具有更高性价比,使用该技术构建的专用网络,能够保证很好的传输性能和服务质量。通过分析IPsec VPN和MPLS VPN的技术特点,将二者的优势结合起来,设计了一个适合远程教育的网络方案。该方案既具有IPsec的安全性、伸缩性,又具有MPLS的简洁高效,能较好地支持远程教育的网络课程、试题库、教学管理、在线考试等不同需求。
IPsec adopts packaging or encryption technique in the user＇s device, and it establishes secure tunneling technology connection with all the VPN functions integrated in the CPE equipments, so the expense to administrate and maintain is quite high, but its transmission efficiency is relatively low. However, MPLS contains higher cost performance compared to traditional VPN and the special network set up on the basis of this techniqe can guarantee good transmission function and high quality of service. The technical characteristics of IPsec and MPLS VPN are analysed and their advantages is combined to design the network plan that suits for remote education. The plan includes the safety and flexibility of IPsec as well as the simplicity and efficiency of MPLS, so that it can well satisfy the needs ofnetwork subject, test paper base, education management, examination on line and so on.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第23期5643-5645,共3页
Computer Engineering and Design
