论文部分内容阅读
VPN是利用公众网资源为客户定做的一种专用私网。VPN的划分种类较多,建立在IP技术或者二层链路基础之上的MPLSVPN正迅速成为下一代网络增值业务的服务基础。介绍了MPLSVPN的原理、特点、业务支持种类以及主要领域的一些应用,并将MPLS二、三层VPN做了简单比较。
VPN is to use public network resources for customers to customize a private network. There are many types of VPNs. MPLS VPNs based on IP technologies or Layer 2 links are quickly becoming the service foundation for next-generation network value-added services. Introduces the principle, features, types of service support and some applications of MPLS VPN, and compares MPLS L2 and L3 VPNs briefly.