Worst-Case Timing Analysis of AFDX Networks With Multiple TSN/BLS Shapers
| Autor: | Anaïs Finzi, Ahlem Mifdaoui |
|---|---|
| Přispěvatelé: | Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), Département d'Ingénierie des Systèmes Complexes (DISC), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO) |
| Rok vydání: | 2020 |
| Předmět: |
Time-sensitive networking
General Computer Science Computer science Réseaux et télécommunications min-plus algebra 02 engineering and technology Aerospace applications 01 natural sciences [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI] 0103 physical sciences 0202 electrical engineering electronic engineering information engineering communication networks General Materials Science Sensitivity (control systems) 010302 applied physics Interconnection Shapers Avionics Full-Duplex Switched Ethernet General Engineering Static timing analysis time-sensitive networking Avionics Telecommunications network performance evaluation 020202 computer hardware & architecture Communication networks Computer engineering Min-plus algebra Performance evaluation lcsh:Electrical engineering. Electronics. Nuclear engineering shapers Network calculus lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 8, Pp 106765-106784 (2020) IEEE Access IEEE Access, IEEE, 2020, 8, pp.106765-106784. ⟨10.1109/ACCESS.2020.3000326⟩ |
| ISSN: | 2169-3536 |
| DOI: | 10.1109/access.2020.3000326 |
| Popis: | International audience; This paper addresses the problem of worst-case timing analysis of extended Avionics Full Duplex Switched Ethernet (AFDX) networks, incorporating Time-Sensitive Networking (TSN) shapers called Burst Limiting Shapers (BLS), to enable the interconnection of different avionics domains withmixed-criticality levels, e.g., current AFDX traffic, Flight Control and In-Flight Entertainment. Conducting such an analysis is a challenging issue when considering multiple BLS-shaped traffic classes, due to the sophisticated inter-dependencies between the different shapers sharing the same output capacity. We tackle this problem through extending the applicability domain of our previous work for computing maximum delay bounds using Network Calculus and considering only one BLS class, called Continuous Credit-based Approach (CCbA), to handle multiple TSN/BLS classes. We provide further insights into the sensitivity and tightness issues of worst-case delay bounds yielded with the Generalized CCbA (GCCbA). Our assessments show that the tightness ratio is up to 85%, with reference to Achievable Worst-Case delays. We also showthe improvements against recent state-of-the-art approaches in terms of tightness and complexity, where the computation time is up to 105 faster. Finally, we evaluate the efficiency of GCCbA for realistic avionics case studies, e.g., adding A350 flight control traffic to the AFDX. Results show the good applicability of GCCbA and confirm the efficiency of the extended AFDX, which decreases the delay bounds of the existing AFDX traffic by up to 49.9%, in comparison with the current AFDX standard. |
| Databáze: | OpenAIRE |
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