Work in Progress: Investigating the Effects of High Priority Traffic on the Best Effort Traffic in TSN Networks

Houtan, Bahar; Ashjaei, Mohammad; Daneshtalab, Masoud; Sjödin, Mikael; Mubeen, Saad

doi:10.1109/rtss46320.2019.00063

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…According to the standard of the TSN, the TSN dataflow priority (PR TSN ) has eight types (0-7). The smaller value represents the lower priority [14].…”

Section: Dataflow Priority Conversion Mechanismmentioning

confidence: 99%

A Network Scheduling Method Based on Segmented Constraints for Convergence of Time-Sensitive Networking and Industrial Wireless Networks

Wei

Liu²,

Wang³

et al. 2023

Electronics

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In industrial applications, it is necessary to select different types of networks according to different communication requirements. To meet this requirement, a converged network of wired and wireless networks is frequently employed. Notably, fulfilling the end-to-end transmission requirements of converged networks is challenging. As a solution, converged-network scheduling methods have proved valuable. In this paper, a network scheduling method for the convergence of industrial wireless networks and time-sensitive networks is proposed. Additionally, the proposed method is tested and verified. The results show that the end-to-end average transmission delay is reduced and the jitter is acceptable.

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“…According to the standard of the TSN, the TSN dataflow priority (PR TSN ) has eight types (0-7). The smaller value represents the lower priority [14].…”

Section: Dataflow Priority Conversion Mechanismmentioning

confidence: 99%

A Network Scheduling Method Based on Segmented Constraints for Convergence of Time-Sensitive Networking and Industrial Wireless Networks

Wei

Liu²,

Wang³

et al. 2023

Electronics

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show abstract

“…The effect of the preemption capability was evaluated in several works [106][107][108][109][110]. Conversely, authors of [111] underlined the importance to study the impact of the preemption activity also on the delay introduced in the Best Effort (BE) traffic communication. Indeed, also the Best Effort traffic, conveying for example diagnostic or configuration messages, need to be properly exchanged.…”

Section: Frame Preemption and Interspersing Express Traffic (Iet)mentioning

confidence: 99%

A Comprehensive Review on Time Sensitive Networks with a Special Focus on Its Applicability to Industrial Smart and Distributed Measurement Systems

Fedullo

Morato

Tramarin

et al. 2022

Sensors

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The groundbreaking transformations triggered by the Industry 4.0 paradigm have dramatically reshaped the requirements for control and communication systems within the factory systems of the future. The aforementioned technological revolution strongly affects industrial smart and distributed measurement systems as well, pointing to ever more integrated and intelligent equipment devoted to derive accurate measurements. Moreover, as factory automation uses ever wider and complex smart distributed measurement systems, the well-known Internet of Things (IoT) paradigm finds its viability also in the industrial context, namely Industrial IoT (IIoT). In this context, communication networks and protocols play a key role, directly impacting on the measurement accuracy, causality, reliability and safety. The requirements coming both from Industry 4.0 and the IIoT, such as the coexistence of time-sensitive and best effort traffic, the need for enhanced horizontal and vertical integration, and interoperability between Information Technology (IT) and Operational Technology (OT), fostered the development of enhanced communication subsystems. Indeed, established technologies, such as Ethernet and Wi-Fi, widespread in the consumer and office fields, are intrinsically non-deterministic and unable to support critical traffic. In the last years, the IEEE 802.1 Working Group defined an extensive set of standards, comprehensively known as Time Sensitive Networking (TSN), aiming at reshaping the Ethernet standard to support for time-, mission- and safety-critical traffic. In this paper, a comprehensive overview of the TSN Working Group standardization activity is provided, while contextualizing TSN within the complex existing industrial technological panorama, particularly focusing on industrial distributed measurement systems. In particular, this paper has to be considered a technical review of the most important features of TSN, while underlining its applicability to the measurement field. Furthermore, the adoption of TSN within the Wi-Fi technology is addressed in the last part of the survey, since wireless communication represents an appealing opportunity in the industrial measurement context. In this respect, a test case is presented, to point out the need for wirelessly connected sensors networks. In particular, by reviewing some literature contributions it has been possible to show how wireless technologies offer the flexibility necessary to support advanced mobile IIoT applications.

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“…Note that under suitable assumptions for ED traffic (e.g., a defined minimum interarrival time and a known burst size), if the ED traffic is served in the highest priority best-effort class (as shown in Figure 1), it is possible to calculate the worst case end-to-end delay for the ED traffic by applying response time analysis [7][8][9]. However, in the presence of SR traffic, the delays for ED traffic can be large [10]. This is the reason why in EDSched a novel traffic class for real-time ED traffic is introduced and is assigned the second highest priority in the transmission selection algorithm.…”

Section: Introductionmentioning

confidence: 99%

Assessments of Real-Time Communications over TSN Automotive Networks

2021

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The IEEE 802.1Q-2018 standard embeds in Ethernet bridges novel features that are very important for automated driving, such as the support for time-driven communications. However, cars move in a world where unpredictable events may occur and determine unforeseen situations. To properly react to such situations, the in-car communication system has to support event-driven transmissions with very low and bounded delays. This work provides the performance evaluation of EDSched, a traffic management scheme for IEEE 802.1Q bridges and end nodes that introduces explicit support for event-driven real-time traffic. EDSched works at the MAC layer and builds upon the mechanisms defined in the IEEE 802.1Q-2018 standard.

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Work in Progress: Investigating the Effects of High Priority Traffic on the Best Effort Traffic in TSN Networks

Cited by 9 publications

References 7 publications

A Network Scheduling Method Based on Segmented Constraints for Convergence of Time-Sensitive Networking and Industrial Wireless Networks

A Network Scheduling Method Based on Segmented Constraints for Convergence of Time-Sensitive Networking and Industrial Wireless Networks

A Comprehensive Review on Time Sensitive Networks with a Special Focus on Its Applicability to Industrial Smart and Distributed Measurement Systems

Assessments of Real-Time Communications over TSN Automotive Networks

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