| MPLS L2 VPN的关键技术 |
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| 引用本文： | 徐志根,申晓峰,杜丽萍.MPLS L2 VPN的关键技术[J].西南交通大学学报,2006,41(1):54-57,62. |
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| 作者姓名： | 徐志根 申晓峰 杜丽萍 |
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| 作者单位： | 1. 西南交通大学信息科学与技术学院,四川,成都,610031
2. 华东理工大学信息科学与工程学院,上海,200237 |
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| 基金项目： | 教育部博士点基金资助项目（20040613013）;四川省攻关计划资助项目（05GG007-012-02） |
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| 摘 要： | 讨论了传统VPN的不足以及MPLS L2 VPN技术的优点．实现基于MPLS L2 VPN的主要问题包括MPLS L2 VPN数据转发和控制的实现流程．实现MPLS12VPN的关键技术包括基于虚链路（VC）的VPN用户二层帧转发处理、利用VC信息参数组建VC_FTN表、以及通过LSP隧道在PE之间构建VC上下游状态机．
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| 关 键 词： | 虚拟专用网 多协议标签交换 虚链路 标签分发协议 关键技术 |
| 文章编号： | 0258-2724（2006）01-0054-05 |
| 收稿时间： | 2004-04-05 |
| 修稿时间： | 2004-04-05 |
Key Technologies of L2 VPN Based on MPLS |
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| XU Zhi-gen,SHEN Xiao-feng,DU Li-ping.Key Technologies of L2 VPN Based on MPLS[J].Journal of Southwest Jiaotong University,2006,41(1):54-57,62. |
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| Authors: | XU Zhi-gen SHEN Xiao-feng DU Li-ping |
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| Institution: | 1. School of Information Science and Techonlogy, Southwest Jiaotong University, Chengdu 610031, China; 2. Information Science and Eng. Institute, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | The disadvantages of traditional VPN (virtual private network) and the advantages of MPLS L2 VPN(layer 2 VPN based on multiple protocol label switch) were discussed.Data forwarding and the control are the two probelems to be solved to implement L2 VPN based on MPLS.The key technologies to implement MPLS L2 VPN consist of fowarding the L2 frames of VPN users,establishment of VC_FTN(forwarding equivalance class to NHLFE map) table based on VC(virtual circuit) information,and design of upper and lower state machines of VC between PEs using LSP(label switch path) tunnel. |
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| Keywords: | VPN MPLS VC LDP key technology |
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