Chinese Journal on Internet of Things ›› 2023, Vol. 7 ›› Issue (4): 72-87.doi: 10.11959/j.issn.2096-3750.2023.00367

• Theory and Technology • Previous Articles    

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)

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

CLC Number: 

No Suggested Reading articles found!