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

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Samenvatting

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.

Originele taal-2Engels
Titel2023 IEEE 19th International Workshop on Factory Communication Systems, WFCS 2023
RedacteurenFrank Golatowski, Sampath Kumar Veera Ragavan, Tullio Facchinetti, Lukasz Wisniewski, Marco Porta, Stefano Scanzio
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's4
ISBN van elektronische versie9781665464321
DOI's
StatusGepubliceerd - 2023
Evenement19th IEEE International Workshop on Factory Communication Systems, WFCS 2023 - Pavia, Italië
Duur: 26 apr. 202328 apr. 2023

Congres

Congres19th IEEE International Workshop on Factory Communication Systems, WFCS 2023
Land/RegioItalië
StadPavia
Periode26/04/2328/04/23

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