时间敏感网络下的一种新型灵活门控机制  

A novel flexible gate control mechanism for time-sensitive networking

作　　者：林佳烁 李伟超 成剑 詹双平 冯景斌 王涛[3] 黄倩怡 唐博 汪漪 LIN Jia-shuo;LI Wei-chao;CHENG Jian;ZHAN Shuang-ping;FENG Jing-bin;WANG Tao;HUANG Qian-yi;TANG Bo;WANG Yi(Department of Computer Science and Engineering,Southern University of Science and Technology,Shenzhen 518055;Peng Cheng Laboratory,Shenzhen 518055;School of Automation,Guangdong University of Technology,Guangzhou 510006;School of Computer Science and Engineering,Sun Yat-sen University,Guangzhou 510006;Institute of Future Network,Southern University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]南方科技大学计算机科学与工程系,广东深圳518055 [2]鹏城实验室,广东深圳518055 [3]广东工业大学自动化学院,广东广州510006 [4]中山大学计算机学院,广东广州510006 [5]南方科技大学未来网络研究院,广东深圳518055

出　　处：《计算机工程与科学》2023年第9期1553-1562,共10页Computer Engineering & Science

基　　金：广东省重点领域研发计划(2020B010164001);国家自然科学基金(62002150)。

摘　　要：时间敏感网络流调度算法通常需要生成大量的门控事件。这超出了网络设备的能力,使得调度算法难以在实际网络中部署。针对此问题,提出一种新型灵活门控机制,通过放松实时业务流与尽力而为业务流严格隔离的约束,允许部分节点对实时业务流不启用门控机制。该机制允许灵活地选择在各个网络设备端口对各实时业务流使能门控,能够将调度实时业务流所需的门控事件最多减少91.6%,其甚至允许实时业务传输路径上存在不支持门控调度的网络设备,实现与普通网络的混合组网。Time-sensitive networking flow scheduling algorithms often generate a large number of gate control events,exceeding the capabilities of network devices and making it difficult to deploy sche-duling algorithms in practical networks.To address this issue,a novel flexible gate control-based flow scheduling strategy is proposed,which relaxes the strict isolation constraints between real-time traffic flows and best-effort traffic flows,allowing some nodes to not enable the gate control mechanism for real-time flows.This strategy can flexibly select to enable the gate control for real-time business at various network device ports,reducing the gate control events required for scheduling real-time traffic flows by up to 91.6%.It even allows the existence of network devices on the transmission path of real-time traffic that do not support gate control scheduling,achieving a mixed deployment with ordinary networks.

关 键 词：时间敏感网络 确定性网络传输 流量调度 灵活门控 门控列表 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]