Simulation of the Proactive Transmission of Replicated Frames Mechanism over TSN

Authors Inés Álvarez Vadillo | Drago Cavka | Julián Proenza Arenas | Manuel Alejandro Barranco González
In Proceedings of the IEEE 24th International Conference on Emerging Technologies and Factory Automation (ETFA 2019), Zaragoza, 2019.

The Time-Sensitive Networking (TSN) Task Group (TG) is providing Ethernet with timing guarantees, reconfiguration services and fault tolerance mechanisms. Some of TSN’s targeted applications are real-time critical applications, which must provide a correct service continuously. To support these applications the TSN TG standardised a spatial redundancy mechanism. Even though spatial redundancy can tolerate permanent and temporary faults, it is not cost-effective. Instead, temporary faults can be tolerated using time redundancy. We proposed the Proactive Transmission of Replicated Frames (PTRF) mechanism to tolerate temporary faults in the links. In this work we present a new PTRF approach, a PTRF simulation model and a comparison of the approaches using exhaustive fault injection.



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