Reference : Insights on the Performance and Configuration of AVB and TSN in Automotive Ethernet N...
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Insights on the Performance and Configuration of AVB and TSN in Automotive Ethernet Networks
Migge, Jörn [RealTime-at-Work]
Villanueva, Josetxo [Groupe Renault]
Navet, Nicolas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
Boyer, Marc [ONERA > DTIM]
Proc. Embedded Real-Time Software and Systems (ERTS 2018)
Embedded Real-Time Software and Systems (ERTS 2018)
from 31-01-2018 to 02-02-2018
[en] Automotive Ethernet ; Time Sensitive Networking ; AVB ; Credit-Based Shaper ; Time-Aware Shaper ; IEEE802.1Q ; QoS
[en] Switched Ethernet is profoundly reshaping in-car communications. To meet the diverse real-time requirements in automotive communications, Quality-of-Service protocols that go beyond the mere use of priorities are required. In this work, the basic questions that we investigate on a case-study with diverse and demanding communication requirements is what can we expect from the various protocols aimed at providing a better timing Quality of Service on top of Ethernet? And how to use them? Especially how to use them in a combined manner. We will focus on the Credit-Based Shaper of AVB, the Time-Aware Shaper of TSN and the use of priorities as defined in IEEE802.1Q. The performance metrics considered are the distributions of the communication latencies, obtained by simulation, as well as upper bounds on these quantities obtained by worst-case schedulability analysis. If there have been over the last 5 years numerous studies on the performance of AVB CBS, the literature on comparing AVB to TSN and other candidate protocols is still sparse. To the best of our knowledge, this empirical study is the first to consider most protocols currently considered in the automotive domain, with the aim to gain insights into the different technological, design and configurations alternatives. In particular, an objective of this study is to identify key problems that need to be solved in order to further automate network design and configuration.
Researchers ; Professionals ; Students

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