时间敏感网络关键技术与标准化现状

Current Situation on Key Technology and Standardization of Time Sensitive Networking

时间敏感网络(TSN)是一组位于OSI参考模型中数据链路层的协议标准。它在传统以太网的基础上,为时间敏感型数据提供了确定性的传输协议,保障了数据传输的实时性和可靠性。因此,时间敏感网络在工业、汽车控制、音视频等行业的应用前景十分广阔。为了更好地帮助产业界了解时间敏感网络技术和使用时间敏感网络标准,系统性地对时间敏感网络的关键技术进行了研究,报告了标准化现状。首先,梳理了时间敏感网络的发展进程;然后,重点研究分析了时钟同步、流量调度和网络配置三大关键技术的机制;最后,总结了时间敏感网络的标准化现状,提出今后标准化方向的建议。

Time sensitive networking(TSN)is a group of protocols at data link layer in OSI and provides deterministic transmission protocol for time sensitive data based on traditional Ethernet.Therefore,TSN is widely used for application prospect in industry,automobile control,audio and video industries.In order to make better understanding for industry TSN technologies and take advantage of TSN standards,the systematically studies are carried out for the key technologies of TSN,and the status of standardization are reported.In the beginning,it analyzes development process of TSN,and then focuses on mechanism of three key technologies of TSN including timing synchronization,traffic scheduling and network configuration.In the end,the paper concludes the current situation of standardization and puts forward to suggestions of the future direction.