TSN-Peeper: an Efficient Traffic Monitor in Time-Sensitive Networking

Zhang, Chuwen; Zhou, Boyang; Tian, Zerui; Cheng, Liang; Liu, Yuxi; Zhang, Huayu; Chen, Song; Wan, Ying; Xu, Wenquan; Pan, Tian; Xu, Yang; Wang, Yi; Zhu, Hailong; Liu, Bin

doi:10.1109/icnp55882.2022.9940335

Cited by 5 publications

(10 citation statements)

References 28 publications

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“…There is another research on violation detection in TSN by Zhang et al, which is TSN-Peeper [19]. Compared with our detection mechanism, TSN-Peeper does not emphasize realtime detection.…”

Section: Jittermentioning

confidence: 88%

“…However, things may not work as expected. There are several factors that may impact the scheduling in TSN, causing violations, including time-synchronization errors in TSN networks, transmission jitters at hosts, and dynamics of the scheduling in the switch fabric as investigated by [19].…”

Section: Causes Of Scheduling Violationsmentioning

confidence: 99%

“…Then, TSN-VM will miss this lag violation for w 1 when it updates GCLs at the end of hypereperiod i. In the centralized monitoring system proposed in [19], Zhang et al simply detect lag violations by comparing w 1 and w 2 , which influences the real-time performance of lag violation detection.…”

Section: Jittermentioning

confidence: 99%

“…Moreover, we have discussed that TSN-VM only uses local violation information of each output port. Thus, no extra bandwidth and delay are induced as there is no need to transmit violation information through the network, which is required by the centralized monitoring system proposed in [19].…”

Section: A Tsn-vm Featuresmentioning

confidence: 99%

“…However, it does not provide real-time mitigation of violations. There is also a paper focusing on monitoring the violations [19], which proposes a centralized approach that induces extra delays. Zhang et al Meanwhile, the detection algorithm in [19] cannot detect lag violations in real-time.…”

Section: Introductionmentioning

confidence: 99%

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TSN-VM: A Real-time and Distributed Algorithm for Scheduling-Violation Mitigation in Time-Sensitive Networking

Zhou,

Cheng

2023

Preprint

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<p>Time-Sensitive Networking (TSN) is designed to provide deterministic performance for real-time systems, which usually have hard delay requirements for Time-Triggered (TT) traffic. In order to guarantee deterministic delays, TSN scheduling assigns specific time slots to TT frames for their transmissions by TSN switches on their paths. However, several factors may lead to scheduling violations, meaning that TT frames are not sent as scheduled. Scheduling violations can cause the increment of delays experienced by TT frames, which may breach their delay requirements.</p> <p>Existing TSN scheduling methods cannot deal with scheduling violations. In our research, we propose TSN-Violation Mitigation (TSN-VM), which dynamically reconfigures the schedule at each TSN switch distributedly on a periodic basis, to mitigate the occurrence of scheduling violations. TSN-VM is built upon our new real-time detection mechanism to discover local violation information in each port of TSN switches. TSN-VM is the first real-time algorithm that can deal with scheduling violations in TSN. Its convergence conditions are demonstrated in the paper. Using TSN-VM, we can reduce the number of lag violations by more than 90.74$\%$ and decrease the average and median delays by more than 95.57$\%$ in the simulated avionic system and industrial Ethernet compared with systems without TSN-VM.</p>

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“…There is another research on violation detection in TSN by Zhang et al, which is TSN-Peeper [19]. Compared with our detection mechanism, TSN-Peeper does not emphasize realtime detection.…”

Section: Jittermentioning

confidence: 88%

Section: Causes Of Scheduling Violationsmentioning

confidence: 99%

Section: Jittermentioning

confidence: 99%

Section: A Tsn-vm Featuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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