A Post-failure Traffic Reconfiguration and Scheduling Optimization Method for Time-sensitive Networking

In the existing studies on time-triggered (TT) traffic reconfiguration in time-sensitive networking (TSN), the redundancy status of the traffic is often overlooked, making it difficult to balance both TT traffic latency performance and the efficiency of reconfiguration scheme solutions in practical deployments. To address this issue, an optimization method for traffic reconfiguration and scheduling after failures is proposed. This method improves the solution efficiency of the reconfiguration scheme by introducing a fast reconfiguration algorithm and its corresponding enhancements at the expense of the latency performance of non-redundant traffic while ensuring solution success. Additionally, the proposed method flexibly adjusts the scheduling strategy of unaffected TT traffic, and incorporates a tabu search-based optimization algorithm with an associated objective function to enhance the overall TT traffic latency performance after reconfiguration. Experimental results demonstrate that the proposed method improves the solution efficiency by more than 75. 03% compared to the commonly used incremental reconfiguration methods, and slightly improves TT traffic latency performance after multiple rounds of reconfiguration, showing a significant potential for practical application. © 2024 China Ordnance Industry Corporation. All rights reserved.