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文章分别从数据转发平面和控制平面讨论了高速路由交换技术的发展。首先对当前流行的体系结构进行分析,指出当前数据转发引擎存在的问题以及研究的热点和方向,然后通过与传统IP路由对比,讨论了多协议标签交换(MPLS)技术作为控制平面在QoS、流量工程以及VPN等方面的优越性。
The article discusses the development of high-speed routing and switching technology from the data forwarding plane and control plane respectively. First of all, it analyzes the current popular architecture and points out the problems existing in the current data forwarding engine as well as the hot spots and directions of the research. Then, compared with the traditional IP routing, we discuss that Multi-protocol Label Switching (MPLS) Engineering and VPN and other advantages.