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RT-EP: A Fixed-Priority Real Time Communication Protocol over Standard Ethernet

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Reliable Software Technology – Ada-Europe 2005 (Ada-Europe 2005)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 3555))

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Abstract

This paper presents the design and implementation of RT-EP (Real-Time Ethernet Protocol), which is a software-based token-passing Ethernet protocol for multipoint communications in real-time applications, that does not require any modification to existing Ethernet hardware. The protocol allows a fixed priority to be assigned to each message, and consequently well-known schedulability analysis techniques can be applied. A precise model of its timing behavior has been obtained. Furthermore, this protocol provides the ability of recovering from some fault conditions. It has been ported to an implementation of the Minimal Real-Time POSIX standard called MaRTE OS [10], and is being used to support real-time communications in an implementation of Ada’s Distributed Systems Annex (RT-GLADE). It has been successfully used to implement a distributed controlled for an industrial robot.

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Author information

Authors and Affiliations

  1. Departamento de Electrónica y Computadores, Universidad de Cantabria, 39005, Santander, Spain

    José María Martínez & Michael González Harbour

Authors
  1. José María Martínez
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  2. Michael González Harbour
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Editor information

Editors and Affiliations

  1. Department of Pure and Applied Mathematics, University of Padua, via Trieste 63, 35121, Padua, Italy

    Tullio Vardanega

  2. Real-Time Systems Research Group, Department of Computer Science, University of York, UK

    Andy Wellings

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© 2005 Springer-Verlag Berlin Heidelberg

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Martínez, J.M., Harbour, M.G. (2005). RT-EP: A Fixed-Priority Real Time Communication Protocol over Standard Ethernet. In: Vardanega, T., Wellings, A. (eds) Reliable Software Technology – Ada-Europe 2005. Ada-Europe 2005. Lecture Notes in Computer Science, vol 3555. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11499909_15

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  • DOI: https://doi.org/10.1007/11499909_15

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-26286-2

  • Online ISBN: 978-3-540-31666-4

  • eBook Packages: Computer ScienceComputer Science (R0)

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