A proposal for managing the redundancy provided by the flexible time-triggered replicated star for ethernet. Gessner, D., Proenza, J., & Barranco, M. In Proceedings of the 10th IEEE Workshop on Factory Communication Systems (WFCS), pages 1--4, Toulouse, France, May, 2014. IEEE. doi abstract bibtex Distributed embedded systems that must operate continuously and satisfy unpredictable requirement changes must be reliable and flexible. Flexibility for changing realtime requirements may be provided by Hard Real-Time Ethernet Switching (HaRTES), an implementation of the master/multi-slave Flexible Time Triggered (FTT) communication paradigm. HaRTES relies on a single switch that embeds the FTT master and thus constitutes a single point of failure. Moreover, the trigger messages (TMs), which are periodic polling messages sent by the master to the slaves, are critical for the correct operation of any FTT implementation. Nevertheless, HaRTES has no mechanism to prevent their loss. To provide high reliability through fault tolerance, the Flexible Time-Triggered Replicated Star (FTTRS) duplicates the HaRTES switch and master, and modifies the masters to proactively retransmit the TMs. This spatial and temporal redundancy requires an appropriate management by the slaves. This paper discusses how this management can be performed.
@inproceedings{ gessner_proposal_2014-1,
address = {Toulouse, France},
title = {A proposal for managing the redundancy provided by the flexible time-triggered replicated star for ethernet},
doi = {10.1109/WFCS.2014.6837600},
abstract = {Distributed embedded systems that must operate continuously and satisfy unpredictable requirement changes must be reliable and flexible. Flexibility for changing realtime requirements may be provided by Hard Real-Time Ethernet Switching ({HaRTES}), an implementation of the master/multi-slave Flexible Time Triggered ({FTT}) communication paradigm. {HaRTES} relies on a single switch that embeds the {FTT} master and thus constitutes a single point of failure. Moreover, the trigger messages ({TMs}), which are periodic polling messages sent by the master to the slaves, are critical for the correct operation of any {FTT} implementation. Nevertheless, {HaRTES} has no mechanism to prevent their loss. To provide high reliability through fault tolerance, the Flexible Time-Triggered Replicated Star ({FTTRS}) duplicates the {HaRTES} switch and master, and modifies the masters to proactively retransmit the {TMs}. This spatial and temporal redundancy requires an appropriate management by the slaves. This paper discusses how this management can be performed.},
booktitle = {Proceedings of the 10th {IEEE} Workshop on Factory Communication Systems ({WFCS})},
publisher = {{IEEE}},
author = {Gessner, David and Proenza, Julian and Barranco, Manuel},
month = {May},
year = {2014},
keywords = {distributed embedded systems, Ethernet, fault tolerance, flexible time-triggered replicated star, {FTT} implementation, {FTTRS}, hard real-time Ethernet switching, {HaRTES}, local area networks, master-multislave flexible time triggered communication paradigm, Payloads, polling messages, Real-time systems, Redundancy, Reliability, spatial redundancy, Switches, Synchronization, temporal redundancy, Transient analysis, trigger messages},
pages = {1--4},
file = {Gessner et al. - 2014 - A proposal for managing the redundancy provided by.pdf:files/65/Gessner et al. - 2014 - A proposal for managing the redundancy provided by.pdf:application/pdf;IEEE Xplore Abstract Record:files/67/login.html:text/html}
}
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