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Comparing Admission Control Architectures for Real-Time Ethernet
Univ Balearic Isl UIB, Dept Math & Informat, Palma De Mallorca 07122, Spain..
Inst Telecomunicacoes IT, P-3810193 Aveiro, Portugal.;Escola Super Tecnol & Gestao Agueda ESTGA, P-3750127 Agueda, Portugal..ORCID iD: 0000-0002-0742-5840
Inst Telecomunicacoes IT, P-3810193 Aveiro, Portugal.;Univ Aveiro UA, Dept Elect Telecommun & Informat, P-3810193 Aveiro, Portugal..
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0001-5805-3015
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2020 (English)In: IEEE Access, E-ISSN 2169-3536, Vol. 8, p. 136260-136260Article in journal (Refereed) Published
Abstract [en]

Industry 4.0 and Autonomous Driving are emerging resource-intensive distributed application domains that deal with open and evolving environments. These systems are subject to stringent resource, timing, and other non-functional constraints, as well as frequent reconfiguration. Thus, real-time behavior must not preclude operational flexibility. This combination is motivating ongoing efforts within the Time Sensitive Networking (TSN) standardization committee to define admission control mechanisms for Ethernet. Existing mechanisms in TSN, like those of AVB, its predecessor, follow a distributed architecture that favors scalability. Conversely, the new mechanisms envisaged for TSN (IEEE 802.1Qcc) follow a (partially) centralized architecture, favoring short reconfiguration latency. This paper shows the first quantitative comparison between distributed and centralized admission control architectures concerning reconfiguration latency. Here, we compare AVB against a dynamic real-time reconfigurable Ethernet technology with centralized management, namely HaRTES. Our experiments show a significantly lower latency using the centralized architecture. We also observe the dependence of the distributed architecture in the end nodes & x2019; performance and the benefit of having a protected channel for the admission control transactions.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2020. Vol. 8, p. 136260-136260
Keywords [en]
Ethernet, TSN, AVB, HaRTES, real-time communication, dynamic reconfiguration, admission control protocol
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-49407DOI: 10.1109/ACCESS.2020.2999817ISI: 000541104900003Scopus ID: 2-s2.0-85086716489OAI: oai:DiVA.org:mdh-49407DiVA, id: diva2:1453271
Available from: 2020-07-09 Created: 2020-07-09 Last updated: 2020-10-16Bibliographically approved

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Bujosa Mateu, Daniel

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