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分析传统VPN的不足以及MPLS L2 VPN技术的优点,并详细介绍和讨论基于MPLS二层VPN的实现原理,主要包括MPLS L2 VPN转发平面和控制平面的实现流程。最后介绍应用MPLS L2 VPN实现VPLS的基本原理和优点。
Analyzes the deficiency of traditional VPN and the advantages of MPLS L2 VPN technology, and introduces and discusses in detail the implementation principle of MPLS L2 VPN, including the implementation process of MPLS L2 VPN forwarding plane and control plane. Finally, the basic principles and advantages of VPLS using MPLS L2 VPN are introduced.