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VPN(虚拟专用网)安全方面必须是地址和路由隔离、骨干网对外界隐蔽和能预防攻击。基于MPLS(多协议标签交换)的VPN与一般第二层VPN的安全方案比较及其加强措施进行探讨.
VPN (virtual private network) security must be isolated from the address and routing, the backbone of the hidden and can prevent attacks on the outside world. The comparison between MPLS schemes based on MPLS (Multiprotocol Label Switching) and general Layer 2 VPNs and their reinforcement measures are discussed.