RobustTSN: A Framework for Protecting Time-Sensitive Networking against Unexpected Delays

Xingbo Feng1,2; Yi Wang2,3,4; Jiashuo Lin2,3; Weichao Li3; Shuangping Zhan3; Yan Liu2,3; Jin Zhang2,3; Jianping Wang1

10.1109/IWQoS61813.2024.10682834

2024-06-21

1548-615X

979-8-3503-5013-5

2024 IEEE/ACM 32nd International Symposium on Quality of Service (IWQoS)

19-21 June 2024

Guangzhou, China

Industrial networks require deterministic and reliable communication, which can be achieved by Time-Sensitive Networking (TSN), a set of standards that enable precise timing and synchronization of data transmission. However, TSN is susceptible to unexpected delays caused by device malfunction, interference or cyber attacks, which can have a domino effect and disrupt multiple data flows. To address this challenge, we propose RobustTSN, a framework that protects TSN against the domino effect of delayed frames and tolerates harmless accident frames using Per-Stream Filtering and Policing (PSFP) mechanism. We develop algorithms to calculate ingress filtering schedules based on local-safe delay and global-safe interval concepts, which decide whether to accept or discard out-of-schedule frames. We use a finite state machine to model the interaction between frames and evaluate frame safety. We build a software-defined networking based system to dynamically monitor network states and reconfigure device filtering after out-of-schedule transmission occurs. We conduct experiments on practical scenario topologies and large groups of random flows to demonstrate the effectiveness and efficiency of our framework.

其他

1.City University of Hong Kong
2.Southern University of Science and Technology
3.Peng Cheng Laboratory
4.Heyuan Bay Area Digital Economy Technology Innovation Center

Xingbo Feng,Yi Wang,Jiashuo Lin,et al. RobustTSN: A Framework for Protecting Time-Sensitive Networking against Unexpected Delays[C],2024.