Retour d’expérience sur le premier bâtiment universitaire câblé en fibre optique

Abstract : The LEGI laboratory specialises in fluid mechanics and has around 130 members. A major user of computing centres, it also has a significant experimental aspect and features large equipment (wind tunnel, wave flume, etc.). With help from Grenoble-INP, a major institution, LEGI built two new buildings on the Grenoble campus in 2012-2013. One of the aims of the construction project was to bring together experimental data, data from computing centres (IDRIS, CINES, etc.) and our own computing servers in one central location. We therefore needed a hub-and-spoke network formed of direct, high-performance links from offices to the server room, but above all from experiments in order to ensure fast data transmission (10Gb/s or higher). A traditional copper network was not chosen due to transfer speeds, distance (>80m) - which would necessitate installing sub-distributors – and difficulties with integrating the old network. A brief description of the chosen solution follows. Three cables of 72 single-mode fibres leave the server room and pass through the hallways until they return to the starting point. As a result, all physical points of our premises are less than 20 m from one of these loops. At regular intervals, one or two tubes of six fibres each are extracted from the cable and connected to a junction box. From this, a single LC/LC jumper connects to an experiment or an office. An optical LC socket or a 6-port administrable micro-switch (including 5 RJ45 ports) is integrated into the terminal conduit using MOSAIC format.
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Contributor : Gabriel Moreau <>
Submitted on : Monday, January 8, 2018 - 1:26:30 PM
Last modification on : Wednesday, March 27, 2019 - 10:30:49 PM
Document(s) archivé(s) le : Saturday, May 5, 2018 - 2:15:22 PM


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  • HAL Id : hal-01250883, version 1




Gabriel Moreau, Olivier De-Marchi. Retour d’expérience sur le premier bâtiment universitaire câblé en fibre optique. Congrès JRES : Les Journées Réseaux de l'Enseignement et de la Recherche, RENATER, Dec 2015, Montpellier, France. ⟨hal-01250883⟩



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