MPLS VPN关键技术研究

Research of key technologies in MPLS VPN

利用多协议标记交换(multi-protocol label switch,MPLS)骨干网络实施虚拟专用网是一种具有巨大技术优势的新型VPN(virtual private network)技术。目前,MPLS VPN技术本身还具有一定局限性。如多自治系统VPN中实施服务质量和网络管理的复杂性,以及缺乏内在安全机制等。阐述了MPLS VPN的关键技术,分析了多自治系统MPLS VPN的实现方式及其服务质量问题,提出了增强MPLS VPN安全性的方法。

To deploy VPN （virtual private network） over MPLS （multi-protocol label switch） backbone is a new and promising technology. However, the MPLS VPN has some limitations. These challenges include the complexity to implement the QoS （Quality of Service） and network management in multi-provider enviromnents, and the absence of inherent security. The principles, architecture and key technologies ofMPLS VPN are discussed. The implementation and QoS ofMPLS VPN over multi autonomous system are anal- yzed, and several mechanisms are put forward to solve the security issues ofMPLS VPN.