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MTU Configuration for Real-Time Switched Ethernet Networks
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0003-3469-1834
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-1687-930X
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. University of Porto, Porto, Portugal .ORCID iD: 0000-0002-9544-3028
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0001-6132-7945
2016 (English)In: Journal of systems architecture, ISSN 1383-7621, E-ISSN 1873-6165, Vol. 70, 15-25 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we show that in real-time switched Ethernet networks reducing the Maximum Transmission Unit (MTU) size may cause an increase or decrease in the response time of messages. This contradicting behavior arises an optimization problem for configuring the MTU size. We formulate the optimization problem in the context of the multi-hop HaRTES architecture, which is a hard real-time Ethernet protocol. As part of the solution, we propose a search-based algorithm to achieve optimum solutions. We modify the algorithm by presenting two techniques to reduce the search space. Then, we propose a heuristic algorithm with a pseudo-polynomial time complexity based on the search-based algorithm. We perform several experiments, and we show that the proposed heuristic results in an improvement regarding messages response times, compared with configuring the MTU to the maximum or minimum values. Moreover, we show in small network configurations that the heuristic performs as good as the search-based algorithm in many cases.

Place, publisher, year, edition, pages
2016. Vol. 70, 15-25 p.
Keyword [en]
Switched Ethernet, HaRTES, Response time analysis, MTU, Optimization
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-32840DOI: 10.1016/j.sysarc.2016.04.009ISI: 000388061000003Scopus ID: 2-s2.0-84964575162OAI: oai:DiVA.org:mdh-32840DiVA: diva2:955325
Projects
PRESS - Predictable Embedded Software Systems
Available from: 2016-08-25 Created: 2016-08-24 Last updated: 2016-12-20Bibliographically approved

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Ashjaei, MohammadBehnam, MorisAlmeida, LuisNolte, Thomas
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CiteExportLink to record
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