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Integrating Offset in Worst Case Delay Analysis of Switched Ethernet Network With Deficit Round Robbin

Soni, Aakash and Li, Xiaoting and Scharbarg, Jean-Luc and Fraboul, Christian Integrating Offset in Worst Case Delay Analysis of Switched Ethernet Network With Deficit Round Robbin. (2018) In: 23rd International Conference on Emerging Technologies and Factory Automation (ETFA 2018), 4 September 2018 - 7 September 2018 (Turin, Italy).

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Official URL: https://doi.org/10.1109/ETFA.2018.8502523


In order to handle mixed criticality flows in a realtime embedded network, switched Ethernet with Quality of Service (QoS) facilities has become a popular solution. Deficit Round Robin (DRR) is such a QoS facility. Worst-Case Traversal Time (WCTT) analysis is mandatory for such systems, in order to ensure that end-to-end delay constraints are met. Network Calculus is a classical approach to achieve this WCTT analysis. A solution has been proposed for switched Ethernet with DRR. It computes pessimistic upper bounds on end-to-end latencies. This pessimism is partly due to the fact that the scheduling of flows by end systems is not considered in the analysis. This scheduling can be modeled by offsets between flows. This modeling has been integrated in WCTT analysis of switched Ethernet with First In First Out (FIFO) scheduling. It leads to a significant reduction of delay upper bounds. The contribution of this paper is to integrate the offsets in the WCTT analysis for switched Ethernet with DRR and to evaluate the reduction on delay upper bounds, considering a realistic case study.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org This papers appears in Proceedings of ETFA 2018. Electronic ISBN: 978-1-5386-7108-5 Electronic ISSN: 1946-0759 The original PDF of the article can be found at: https://ieeexplore.ieee.org/document/8502523 Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-02494127
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > École Centrale d’Électronique de Paris - ECE (FRANCE)
Laboratory name:
Deposited On:10 Feb 2020 10:48

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