Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates

The CMS Level-1 Trigger at HL-LHC and associated upstream systems employ more than 10000 25 Gb/s optical links, transferring almost a Pb/s of data synchronously between the different back-end processing nodes. Stable operation of these links is essential to avoid the injection of erroneous signals i...

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Detalles Bibliográficos
Autores principales: Adamidis, K, Bestintzanos, I, Foudas, C, Howard, A, Iles, G M, Mallios, S, Williams, T
Lenguaje:eng
Publicado: 2022
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/17/06/C06002
http://cds.cern.ch/record/2823958
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author Adamidis, K
Bestintzanos, I
Foudas, C
Howard, A
Iles, G M
Mallios, S
Williams, T
author_facet Adamidis, K
Bestintzanos, I
Foudas, C
Howard, A
Iles, G M
Mallios, S
Williams, T
author_sort Adamidis, K
collection CERN
description The CMS Level-1 Trigger at HL-LHC and associated upstream systems employ more than 10000 25 Gb/s optical links, transferring almost a Pb/s of data synchronously between the different back-end processing nodes. Stable operation of these links is essential to avoid the injection of erroneous signals into the trigger path, potentially leading to a flood of false triggers or data loss. The Hermes protocol, implemented on Xilinx UltraScale+ FPGAs, provides this stability while operating at asynchronous, industry standard line rates. The protocol design as well as results on the performance from extensive testing are presented here.
id cern-2823958
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28239582022-08-03T21:06:20Zdoi:10.1088/1748-0221/17/06/C06002http://cds.cern.ch/record/2823958engAdamidis, KBestintzanos, IFoudas, CHoward, AIles, G MMallios, SWilliams, THermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line ratesDetectors and Experimental TechniquesThe CMS Level-1 Trigger at HL-LHC and associated upstream systems employ more than 10000 25 Gb/s optical links, transferring almost a Pb/s of data synchronously between the different back-end processing nodes. Stable operation of these links is essential to avoid the injection of erroneous signals into the trigger path, potentially leading to a flood of false triggers or data loss. The Hermes protocol, implemented on Xilinx UltraScale+ FPGAs, provides this stability while operating at asynchronous, industry standard line rates. The protocol design as well as results on the performance from extensive testing are presented here.oai:cds.cern.ch:28239582022
spellingShingle Detectors and Experimental Techniques
Adamidis, K
Bestintzanos, I
Foudas, C
Howard, A
Iles, G M
Mallios, S
Williams, T
Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
title Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
title_full Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
title_fullStr Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
title_full_unstemmed Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
title_short Hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
title_sort hermes — a robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1748-0221/17/06/C06002
http://cds.cern.ch/record/2823958
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