Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals

Reinder J. Bril; Hamid Hassani; Pieter J.L. Cuijpers; Geoffrey Nelissen

doi:10.1109/WFCS57264.2023.10144249

Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2 Citations (Scopus)

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Abstract

The existing worst-case response time (WCRT) analysis for individual priority classes under credit-based shaping (CBS) in Ethernet AVB based on so-called eligible intervals is both independent and tight. This WCRT analysis does not rely on any assumptions on interfering inter-priority streams other than those enforced by the Ethernet standard. A major advantage of this independent analysis is that CBS may be viewed as resource reservation, where allocated bandwidth is both guaranteed and enforced. Although independent analysis provides inter-priority class robustness, it comes at a cost of over-provisioning bandwidth. We illustrate this cost of inter-priority class robustness by means of an example that requires 7.8 times the amount of bandwidth reservation for a given set of streams compared to a different analysis that takes knowledge of inter-priority streams into account.

Original language	English
Title of host publication	2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023
Editors	Frank Golatowski, Sampath Kumar Veera Ragavan, Tullio Facchinetti, Lukasz Wisniewski, Marco Porta, Stefano Scanzio
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	4
ISBN (Electronic)	9781665464321
DOIs	https://doi.org/10.1109/WFCS57264.2023.10144249
Publication status	Published - 2023
Event	19th IEEE International Workshop on Factory Communication Systems, WFCS 2023 - Pavia, Italy Duration: 26 Apr 2023 → 28 Apr 2023

Conference

Conference	19th IEEE International Workshop on Factory Communication Systems, WFCS 2023
Country/Territory	Italy
City	Pavia
Period	26/04/23 → 28/04/23

Keywords

AVB
IEEE Ethernet
real-Time systems
TSN

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10.1109/WFCS57264.2023.10144249

Cite this

Bril, R. J., Hassani, H., Cuijpers, P. J. L., & Nelissen, G. (2023). Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals. In F. Golatowski, S. K. V. Ragavan, T. Facchinetti, L. Wisniewski, M. Porta, & S. Scanzio (Eds.), 2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023 Article 10144249 Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/WFCS57264.2023.10144249

Bril, Reinder J. ; Hassani, Hamid ; Cuijpers, Pieter J.L. et al. / Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals. 2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023. editor / Frank Golatowski ; Sampath Kumar Veera Ragavan ; Tullio Facchinetti ; Lukasz Wisniewski ; Marco Porta ; Stefano Scanzio. Institute of Electrical and Electronics Engineers, 2023.

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title = "Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals",

abstract = "The existing worst-case response time (WCRT) analysis for individual priority classes under credit-based shaping (CBS) in Ethernet AVB based on so-called eligible intervals is both independent and tight. This WCRT analysis does not rely on any assumptions on interfering inter-priority streams other than those enforced by the Ethernet standard. A major advantage of this independent analysis is that CBS may be viewed as resource reservation, where allocated bandwidth is both guaranteed and enforced. Although independent analysis provides inter-priority class robustness, it comes at a cost of over-provisioning bandwidth. We illustrate this cost of inter-priority class robustness by means of an example that requires 7.8 times the amount of bandwidth reservation for a given set of streams compared to a different analysis that takes knowledge of inter-priority streams into account.",

keywords = "AVB, IEEE Ethernet, real-Time systems, TSN",

author = "Bril, \{Reinder J.\} and Hamid Hassani and Cuijpers, \{Pieter J.L.\} and Geoffrey Nelissen",

year = "2023",

doi = "10.1109/WFCS57264.2023.10144249",

language = "English",

editor = "Frank Golatowski and Ragavan, \{Sampath Kumar Veera\} and Tullio Facchinetti and Lukasz Wisniewski and Marco Porta and Stefano Scanzio",

booktitle = "2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "19th IEEE International Workshop on Factory Communication Systems, WFCS 2023 ; Conference date: 26-04-2023 Through 28-04-2023",

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Bril, RJ, Hassani, H , Cuijpers, PJL & Nelissen, G 2023, Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals. in F Golatowski, SKV Ragavan, T Facchinetti, L Wisniewski, M Porta & S Scanzio (eds), 2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023., 10144249, Institute of Electrical and Electronics Engineers, 19th IEEE International Workshop on Factory Communication Systems, WFCS 2023, Pavia, Italy, 26/04/23. https://doi.org/10.1109/WFCS57264.2023.10144249

Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals. / Bril, Reinder J.; Hassani, Hamid ; Cuijpers, Pieter J.L. et al.
2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023. ed. / Frank Golatowski; Sampath Kumar Veera Ragavan; Tullio Facchinetti; Lukasz Wisniewski; Marco Porta; Stefano Scanzio. Institute of Electrical and Electronics Engineers, 2023. 10144249.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Nelissen, Geoffrey

PY - 2023

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N2 - The existing worst-case response time (WCRT) analysis for individual priority classes under credit-based shaping (CBS) in Ethernet AVB based on so-called eligible intervals is both independent and tight. This WCRT analysis does not rely on any assumptions on interfering inter-priority streams other than those enforced by the Ethernet standard. A major advantage of this independent analysis is that CBS may be viewed as resource reservation, where allocated bandwidth is both guaranteed and enforced. Although independent analysis provides inter-priority class robustness, it comes at a cost of over-provisioning bandwidth. We illustrate this cost of inter-priority class robustness by means of an example that requires 7.8 times the amount of bandwidth reservation for a given set of streams compared to a different analysis that takes knowledge of inter-priority streams into account.

AB - The existing worst-case response time (WCRT) analysis for individual priority classes under credit-based shaping (CBS) in Ethernet AVB based on so-called eligible intervals is both independent and tight. This WCRT analysis does not rely on any assumptions on interfering inter-priority streams other than those enforced by the Ethernet standard. A major advantage of this independent analysis is that CBS may be viewed as resource reservation, where allocated bandwidth is both guaranteed and enforced. Although independent analysis provides inter-priority class robustness, it comes at a cost of over-provisioning bandwidth. We illustrate this cost of inter-priority class robustness by means of an example that requires 7.8 times the amount of bandwidth reservation for a given set of streams compared to a different analysis that takes knowledge of inter-priority streams into account.

KW - AVB

KW - IEEE Ethernet

KW - real-Time systems

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BT - 2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023

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A2 - Ragavan, Sampath Kumar Veera

A2 - Facchinetti, Tullio

A2 - Wisniewski, Lukasz

A2 - Porta, Marco

A2 - Scanzio, Stefano

PB - Institute of Electrical and Electronics Engineers

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Bril RJ, Hassani H , Cuijpers PJL , Nelissen G. Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals. In Golatowski F, Ragavan SKV, Facchinetti T, Wisniewski L, Porta M, Scanzio S, editors, 2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023. Institute of Electrical and Electronics Engineers. 2023. 10144249 doi: 10.1109/WFCS57264.2023.10144249

Cost of Robustness of Independent WCRT Analysis for CBS of Ethernet AVB Using Eligible Intervals

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