【摘要】 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。更多还原

【Abstract】 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 environments,and the absence of inherent security.The principles,architecture and key technologies of MPLS VPN are discussed.The implementation and QoS of MPLS VPN over multi autonomous system are anal-yzed,and several mechanisms are put forward to solve the security issues of MPLS VPN.更多还原