可编程网络数据平面技术进展

Progress in programmable network data plane

网络数据平面执行数据包处理转发,是网络性能的决定性因素之一。大带宽、低时延、可持续演进的网络基础设施需要构建高效可编程的网络数据平面。首先,介绍数据包处理转发模型,并以此为基础概述网络数据平面在性能与可编程性面临的关键挑战。然后,从数据包查找算法理论与软/硬件协同实现机制出发,详细论述其基本思路及关键核心技术进展以应对上述关键挑战。最后,探讨高效可编程数据平面的未来发展趋势与技术演进路线。

Network data plane performs packet processing and forwarding,which is one of the core factors determining the network performance.High bandwidth,low latency and rapid evolution of the network infrastructure require building an efficient and programmable network data plane.The packet processing and forwarding model was firstly introduced,and on this basis,the challenges of the network data plane in the performance and programmability were outlined.Then the basic ideas and core technology progress were elaborated to deal with the above challenges by analyzing the theory of packet processing algorithms and hardware-software codesign implementations.Finally,the trend and technical route of constructing an efficient programmable data plane were discussed.