Traffic class assignment for mixed-criticality frames in TTEthernet

Gavriluţ, Voica; Pop, Paul

doi:10.1145/3015037.3015042

Cited by 16 publications

(8 citation statements)

References 14 publications

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“…Consequently, the assignments of A i,i and MT w s ⋆ ,i will be determined by propagating the constraints (8) and (6). In the case that the architecture is given as input, we initialize the values of A i,i and BA j according to the given architecture.…”

Section: Topology Constraintsmentioning

confidence: 99%

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Fault-tolerant topology and routing synthesis for IEEE time-sensitive networking

Gavriluţ

Zarrin

Pop

et al. 2017

Proceedings of the 25th International Conference on Real-Time Networks and Systems

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Time-Sensitive Networking (TSN) is a set of IEEE standards that extend Ethernet for safety-critical and real-time applications. TSN is envisioned to be widely used in several applications areas, from industrial automation to in-vehicle networking. A TSN network is composed of end systems interconnected by physical links and bridges (switches). The data in TSN is exchanged via streams. We address safety-critical real-time systems, and we consider that the streams use the Urgency-Based Scheduler (UBS) traffic-type, suitable for hard real-time traffic. We are interested in determining a fault-tolerant network topology, consisting of redundant physical links and bridges, the routing of each stream in the applications, such that the architecture cost is minimized, the applications are fault-tolerant (i.e., the critical streams have redundant disjoint routes), and the timing constraints of the applications are satisfied. We propose three approaches to solve this optimization problem: (1) a heuristic solution, (2) a Greedy Randomized Adaptive Search Procedure (GRASP) metaheuristic, and (3) a Constraint Programmingbased model. The approaches are evaluated on several test cases, including a test case from General Motors Company.

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Section: Topology Constraintsmentioning

confidence: 99%

“…However, although we consider UBS in this paper, our approach can handle any combination of traffic types, as long as a timing analysis is available. The choice of traffic type depends on the characteristics of the applications, and the problem of determining the appropriate traffic types has been addressed in [8] for mixed-criticality traffic in TTEthernet.…”

mentioning

confidence: 99%

Fault-tolerant topology and routing synthesis for IEEE time-sensitive networking

Gavriluţ

Zarrin

Pop

et al. 2017

Proceedings of the 25th International Conference on Real-Time Networks and Systems

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“…This approach has been adapted in (Craciunas et al, 2016) to support the recent IEEE 802.1Q amendment for scheduled traffic (IEEE 802.1Qbv). Time-triggered schedule synthesis has recently been extended in various directions, such as bandwidth optimization for best-effort traffic (Tămaş-Selicean et al, 2015), mixed-criticality systems (Steiner, 2011), resilience to link failures (Avni et al, 2016), traffic class assignment (Gavriluţ and Pop, 2016), and modeling of time-synchronization precision (Zhang et al, 2014).…”

Section: Introduction and Related Workmentioning

confidence: 99%

Security-Aware Design of Cyber-Physical Systems for Control Applications

Mahfouzi

2021

Linköping Studies in Science and Technology. Dissertations

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Cyberfysiska system interagerar med den fysiska och digitala världen. Cyberfysiska system innehåller ofta ett flertal styrsystem. Dessa system är uppkopplade till Internet och är därför särskilt sårbara mot cyberattacker. Flera attacker är särskilt riktade mot styrsystem. Denna avhandling fokuserar på säkerhetshot mot styrsystem i cyberfysiska system. Vi presenterar unika tillstånd för styrsystem som används till att utveckla system för att upptäcka, förhindra och mildra attacker mot cyberfysiska system. Vi påvisar även säkerhetsutmaningar baserade på icke-intuitiva tids-och fördröjningsberoenden som skapas då ett flertal styrsystem delar resurser. Vidare så tar vi hänsyn till realtidskommunikation för reglerapplikationer som implementeras på ett underliggande datornätverk där vi schemalägger och dirigerar meddelanden på så sätt att säkerheten maximeras. Till sist behandlar vi säkerhetsutmaningar som uppstår då reglerapplikationer i cyberfysiska system allokeras som molntjänster via Internet. Denna avhandling innehåller experiment som påvisar effektiviteten av verifierbar beräkning för att i realtid verifiera molntjänstens beräkningar.

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“…This approach has been adapted in [7] to support the recent IEEE 802.1Q amendment for scheduled traffic (IEEE 802.1Qbv-2015 [12]). Time-triggered schedule synthesis has recently been extended in various directions, such as bandwidth optimization for best-effort traffic [21], mixedcriticality systems [19], resilience to link failures [3], traffic class assignment [11], and modeling of time-synchronization precision [22].…”

Section: Introductionmentioning

confidence: 99%

Stability-aware integrated routing and scheduling for control applications in Ethernet networks

Mahfouzi

Aminifar

Samii

et al. 2018

2018 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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Abstract-Real-time communication over Ethernet is becoming important in various application areas of cyber-physical systems such as industrial automation and control, avionics, and automotive networking. Since such applications are typically time critical, Ethernet technology has been enhanced to support timedriven communication through the IEEE 802.1 TSN standards. The performance and stability of control applications is strongly impacted by the timing of the network communication. Thus, in order to guarantee stability requirements, when synthesizing the communication schedule and routing, it is needed to consider the degree to which control applications can tolerate message delays and jitters. In this paper we jointly solve the message scheduling and routing problem for networked cyber-physical systems based on the time-triggered Ethernet TSN standards. Moreover, we consider this communication synthesis problem in the context of control applications and guarantee their worst-case stability, taking explicitly into consideration the impact of communication delay and jitter on control quality. Considering the inherent complexity of the network communication synthesis problem, we also propose new heuristics to improve synthesis efficiency without any major loss of quality. Experiments demonstrate the effectiveness of the proposed solutions.

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Traffic class assignment for mixed-criticality frames in TTEthernet

Cited by 16 publications

References 14 publications

Fault-tolerant topology and routing synthesis for IEEE time-sensitive networking

Fault-tolerant topology and routing synthesis for IEEE time-sensitive networking

Security-Aware Design of Cyber-Physical Systems for Control Applications

Stability-aware integrated routing and scheduling for control applications in Ethernet networks

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