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Assessing a precise gPTP simulator with IEEE802.1AS hardware measurements

Abstract : TSN (Time Sensitive Networking) standards are arousing growing interest in the critical on-board network community because of their promise of deterministic Ethernet networking. Among these standards IEEE802.1AS allows the synchronization of network devices. This protocol achieves much greater precision than other Ethernet synchronization standard such as NTP or PTP. Thus, it paves the way for new network mechanisms, such as the Time Aware Shaper, and allows the use of applications that are more constrained in terms of synchronization. In order to study the new mechanisms allowing to reach this precision, precise simulations are mandatory. In this paper, we review the different existing tools, extend the most promising one to incorporate the most advanced features of IEEE802.1AS and assess its behavior with respect to measurements. More specifically, we extend an OMNeT++ simulation library, calibrate its results following an extensive measurement campaign of switched Ethernet devices supporting IEEE 802.1AS to assess its performance in terms of precision.
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Contributor : Katia JAFFRES-RUNSER Connect in order to contact the contributor
Submitted on : Saturday, March 26, 2022 - 7:03:39 AM
Last modification on : Monday, July 4, 2022 - 9:48:28 AM
Long-term archiving on: : Monday, June 27, 2022 - 6:10:02 PM


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  • HAL Id : hal-03620481, version 1


Quentin Bailleul, Katia Jaffrès-Runser, Jean-Luc Scharbarg, Philippe Cuenot. Assessing a precise gPTP simulator with IEEE802.1AS hardware measurements. 11th European Congress on Embedded Real-Time Systems (ERTS 2022), Jun 2022, Toulouse, France. ⟨hal-03620481⟩



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