· 2016
Scheduling Real-Time Communication in IEEE 802.1Qbv Time Sensitive Networks
- 510citations
- 2016year
Short summary
This paper presents a method to compute deterministic schedules for IEEE 802.1Qbv networks, guaranteeing low jitter and bounded end-to-end latency for real-time communication in multi-hop switched environments.
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Key points
- Develops a method for computing deterministic schedules in IEEE 802.1Qbv networks.
- Identifies and analyzes functional parameters critical for deterministic real-time communication.
- Derives constraints for offline schedule computation guaranteeing low jitter and bounded latency.
- Discusses optimization trade-offs between schedule computation time and network performance.
AI-generated from the title and abstract; the full text is not read.
Abstract
The enhancements being developed by the Time-Sensitive Networking Task Group as part of IEEE 802.1 emerge as the future of real-time communication over Ethernet networks for automotive and industrial application domains. In particular IEEE 802.1Qbv is key to enabling timeliness guarantees via so-called time-aware shapers. In this paper, we address the computation of fully deterministic schedules for 802.1Qbv-compliant multi-hop switched networks. We identify and analyze key functional parameters affecting the deterministic behaviour of real-time communication under 802.1Qbv and, based on a generalized configuration of these parameters, derive the required constraints for computing offline schedules guaranteeing low and bounded jitter and deterministic end-to-end latency for critical communication flows. Furthermore, we discuss several optimization directions and concrete configurations exposing trade-offs against the required computation time. We also show the performance of our approach via synthetic network workloads on top of different network configurations.
The authors' abstract, as published at the source., 2016 · DOI ↗
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Field: Hardware and Architecture
Hardware and ArchitectureComputer Science