物联网学报 ›› 2023, Vol. 7 ›› Issue (4): 72-87.doi: 10.11959/j.issn.2096-3750.2023.00367

• 理论与技术 • 上一篇    

一种应用于大规模时间敏感网络的混合流量调度机制

李妍珏1, 韩文璇1, 朱海龙2, 尹长川1   

  1. 1 北京邮电大学先进信息网络北京实验室,北京 100876
    2 北京邮电大学网络与交换技术国家重点实验室,北京 100876
  • 修回日期:2023-08-29 出版日期:2023-12-01 发布日期:2023-12-01
  • 作者简介:李妍珏(1997- ),女,北京邮电大学先进信息网络北京实验室硕士生,主要研究方向为工业互联网、确定性网络、时间敏感网络等
    韩文璇(1998- ),女,北京邮电大学先进信息网络北京实验室硕士生,主要研究方向为工业互联网、时间敏感网络和车载网络等
    朱海龙(1987- ),男,博士,北京邮电大学讲师,主要研究方向为工业互联网、确定性网络、工业以太网、软件定义网络、时间敏感网络和车载网络等
    尹长川(1968- ),男,博士,北京邮电大学教授、博士生导师,主要研究方向为无线通信系统与网络理论、统计信号处理、机器学习及其在无线通信中的应用、物联网技术等
  • 基金资助:
    国家重点研发计划(2020YFB1805301)

A hybrid traffic scheduling mechanism applied to large scale time-sensitive networking

Yanjue LI1, Wenxuan HAN1, Hailong ZHU2, Changchuan YIN1   

  1. 1 Beijing Laboratory of Advanced Information Networks, Beijing University of Posts and Telecommunications, Beijing 100876, China
    2 State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Revised:2023-08-29 Online:2023-12-01 Published:2023-12-01
  • Supported by:
    The National Key Research and Development Program of China(2020YFB1805301)

摘要:

针对仅能保证设备间频率同步的大规模时间敏感网络(TSN, time-sensitive networking)场景,提出一种时间感知整形(TAS, time-aware shaper)结合指定周期的排队和转发(CSQF, cycle specified queuing and forwarding)的混合流量调度机制。首先,研究位于不同时间域内的两个相邻节点间实现周期循环映射对齐的方案;其次,结合段路由技术,提出一种基于CSQF机制的联合路由和调度的启发式算法,完成对大带宽流量的资源分配。实验结果表明,相较于现有方案,所提方案大幅度提升了系统资源利用率及调度成功率,实现了广域网场景下的TSN高效流量调度。

关键词: 时间敏感网络, 时间感知整形, 循环排队转发, 指定周期的排队和转发, 流量调度

Abstract:

Aiming at large-scale time-sensitive networking (TSN) scenarios that can only ensure frequency synchronization between devices, a hybrid traffic scheduling mechanism was proposed based on time-aware shaper (TAS) combined with cycle specified queuing and forwarding (CSQF).Firstly, a scheme was investigated for achieving periodic cyclic mapping alignment between two adjacent nodes located in different time domains.Secondly, combining segment routing technology, a heuristic algorithm based on CSQF mechanism for joint routing and scheduling was proposed to complete resource allocation for large bandwidth traffic.The experimental results show that the proposed scheme significantly improves the system resource utilization and scheduling success rate compared to existing research results, achieving efficient TSN traffic scheduling in wide area network scenarios.

Key words: time-sensitive networking, time-aware shaper, cyclic queuing and forwarding, cycle specified queuing and forwarding, traffic scheduling

中图分类号: 

No Suggested Reading articles found!