Analysis and modeling of asynchronous traffic shaping in time sensitive networks

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    Abstract

    Time Sensitive Network (TSN) is an attractive solution for time-critical frame transmission in data link layer. Traffic scheduling and shaping in TSN aim to achieve bounded low latency and zero congestion loss. TSN provides traditional frame switching with reliable Quality-of-Service (QoS) parameters, however, synchronization challenges, e.g. jitter, lost timing frames, clock inaccuracy, threaten the reliability of TSN network. Emerging Asynchronous Traffic Shaping (ATS) guarantees determinism for real-time applications, e.g. automotive and industrial control, while removing the dependence on synchronous communication. This paper focuses on performance evaluation of the recently proposed ATS amendment to the IEEE 802.1 standard, two approaches are discussed: Urgency-Based Scheduler (UBS) and Paternoster policing and scheduling. Models and simulations are carried out for evaluation and comparison. Statistics on the end-to-end delay, buffer usage and frame loss rate are collected to assess the scheduling performance. Results show that ATS achieves effective traffic shaping and switching without synchronous mechanisms, while there is an evident trade-off for using these specific algorithms.
    Original languageEnglish
    Title of host publicationProceedings of 2018 14th IEEE International Workshop on Factory Communication Systems
    Number of pages4
    PublisherIEEE
    Publication date2018
    Pages1-4
    ISBN (Print)978-1-5386-1066-4
    DOIs
    Publication statusPublished - 2018
    Event2018 14th IEEE International Workshop on Factory Communication Systems - Chamber of Commerce of Imperia, Imperia, Italy
    Duration: 13 Jun 201815 Jun 2018
    Conference number: 14
    https://ieeexplore.ieee.org/xpl/conhome/8396320/proceeding

    Conference

    Conference2018 14th IEEE International Workshop on Factory Communication Systems
    Number14
    LocationChamber of Commerce of Imperia
    Country/TerritoryItaly
    CityImperia
    Period13/06/201815/06/2018
    SponsorIEEE
    Internet address

    Keywords

    • Traffic Scheduling
    • Time Sensitive Network
    • Asynchronous Traffic Shaping
    • Urgency-Based Scheduler
    • Paternoster Policing and Scheduling
    • Quality-of-Service

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