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WCTT analysis of avionics Switched Ethernet Network with WRR Scheduling

Soni, Aakash and Li, Xiaoting and Scharbarg, Jean-Luc and Fraboul, Christian WCTT analysis of avionics Switched Ethernet Network with WRR Scheduling. (2018) In: 26th International Conference on Real-Time and Network Systems (RTNS 2018), 10 December 2018 - 12 December 2018 (Poitiers, France).

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Official URL: https://doi.org/10.1145/3273905.3273925


Nowadays, a real-time embedded system often has to cope with flows with different criticality levels. Such a situation is forecasted for next generation avionics networks, in order to better use communication resources. Indeed, the present situation, where the Avionics Full Duplex switched Ethernet (AFDX) network is reserved for critical avionics flows, leads to a very lightly loaded network. Quality of Service (QoS) mechanisms such as service disciplines are mandatory in order to cope with the heterogeneous constraints of the different kinds of flows. Weighted Round Robin (WRR) is envisioned in the context of avionics. Worst-case traversal time (WCTT) analysis is mandatory to ensure that temporal constraints of flows are met. Network Calculus (NC) is a popular solution for this analysis and results exist for WRR. They lead to pessimistic upper bounds. The main contribution of this paper is to show how existing NC results for WRR can be applied and improved in the context of an avionics configuration. The resulting analysis is evaluated on an industrial size configuration.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to ACM. The definitive version is available at http://dl.acm.org This papers appears in RTNS'18: Proceedings of the 26th International Conference on Real-Time Networks and Systems ISBN: 978-1-4503-6463-8 The original PDF is available at: https://dl.acm.org/doi/10.1145/3273905.3273925
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 09:33

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