Title :
Timing Analysis of Rate Constrained Traffic for the TTEthernet Communication Protocol
Author :
TamasSelicean, Domitian ; Pop, Paul ; Steiner, Wilfried
Author_Institution :
DTU Comput., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
Ethernet is a low-cost communication solution offering high transmission speeds. Although its applications extend beyond computer networking, Ethernet is not suitable for real-time and safety-critical systems. To alleviate this, several real-time Ethernet-based communication protocols have been proposed, such as TTEthernet, which is the focus of this paper. TTEthernet is suitable for mixed-criticality systems both in the safety and temporal domain. TTEthernet offers three traffic classes: static time-triggered (TT) traffic, dynamic traffic with bounded transmission rate (called "Rate Constrained", RC), and unbounded dynamic traffic ("Best-Effort", BE). In this paper we propose a novel worst-case end-to-end delay analysis of the RC traffic for TTEthernet systems. The proposed technique considerably reduces the pessimism of the analysis, compared to existing approaches. We have evaluated the new analysis using several test cases.
Keywords :
delays; local area networks; protocols; telecommunication traffic; TT traffic; TTEthernet communication protocol; bounded transmission rate; computer networking; dynamic traffic; end-to-end delay analysis; mixed criticality systems; rate constrained traffic; real-time systems; safety domain; safety-critical systems; static time-triggered; temporal domain; timing analysis; unbounded dynamic traffic; Delays; Hardware; Protocols; Real-time systems; Schedules; Synchronization; mixed-criticality; real-time; timing analysis; ttethernet;
Conference_Titel :
Real-Time Distributed Computing (ISORC), 2015 IEEE 18th International Symposium on
Conference_Location :
Auckland
DOI :
10.1109/ISORC.2015.32