关键词: 网络处理器 多协议标签交换 虚拟专用网 虚拟路由转发

Abstract:

MPLS VPN is one of the popular protocols in the next-generation Internet. In general, it is implemented in modern touters. In this paper, the implemen  tation technology of MPLS VPN is studied in high-performance routers based on network processors. By making use of the properties of flexible programmin g and the high processing capability of network processors, the software architecture of MPLS VPN is proposed, and the key technology is designed and im plemented, the efficiency of network processors in protocol extension is exploited, and the method to upgrade the software of network processors is expl ored.

Key words: network processor, MPLS, VPN, VRF