Planned intervention: On Wednesday April 3rd 05:30 UTC Zenodo will be unavailable for up to 2-10 minutes to perform a storage cluster upgrade.
Published September 6, 2016 | Version v1
Conference paper Open

Formal Worst-Case Performance Analysis of Time-Sensitive Ethernet with Frame Preemption

  • 1. Institute of Computer and Network Engineering Technische Universit¨at Braunschweig, Germany

Description

One of the key challenges in future Ethernet-based automotive and industrial networks is the low-latency transport of time-critical data. To date, Ethernet frames are sent non-preemptively. This introduces a major source of delay, as, in the worst-case, a latency-critical frame might be blocked by a frame of lower priority, which started transmission just before the latency-critical frame. The upcoming IEEE 802.3br standard will introduce Ethernet frame preemption to address this problem. While high-priority traffic benefits from preemption, lower-priority (yet still latency-sensitive) traffic experiences a certain overhead, impacting its timing behavior. In this paper, we present a formal timing analysis for Ethernet to derive worst-case latency bounds under preemption. We use a realistic automotive Ethernet setup to analyze the worst-case performance of standard Ethernet and Ethernet TSN under preemption and also compare our results to non-preemptive implementations of these standards.

Files

2016ETFA-TUBS.pdf

Files (780.5 kB)

Name Size Download all
md5:454efbdbb6d4a22477dedee76e08a6ba
780.5 kB Preview Download

Additional details

Funding

SAFURE – SAFety and secURity by design for interconnected mixed-critical cyber-physical systems 644080
European Commission