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100 ps. Furthermore, the feasibility of a European fibre
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network connecting optical clocks in Europe will be studied
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in close collaboration with potential fibre providers.\_
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- Extract of final report:
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- Extract of SIB-02 NEAT-FT final Newsletter:
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*Following a recommendation of the international advisory
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board to investigate the possibility of a time link between
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radio-observatories at Metsähovi (Finland) and Onsala
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(Sweden) a study on feasibility of a standard
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uni-directional network for long-haul timing dissemination
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using PTP-WR (Precision time Protocol- White Rabbit,
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https://www.ohwr.org/project/wr-cores/wikis/Wrpc_core) was
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initiated. We have focused on long distance testing of White
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Rabbit equipment. A test link of about 1000 km distance
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between MIKES sites at Espoo and Kajaani has been set-up.
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This was achieved in close collaboration with the Centre for
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Scientific Computing Ltd. (CSC), the Finnish University
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Network and CERN, with support by VSL and SP. In a 120 day
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comparison between GPS-PPP time transfer and the 1000-km
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long link White Rabbit time link in a live DWDM network, the
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performance and reliability of the fibre link were found to
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be excellent where the results were limited by the
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statistics of the GPS–PPP link.*
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using PTP-WR (Precision time Protocol- White Rabbit) was
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initiated. We have focused on **long distance testing of
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White Rabbit equipment**. A test link of about 1000 km
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distance between MIKES sites at Espoo and Kajaani has been
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set-up. This was achieved in close collaboration with the
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Centre for Scientific Computing Ltd. (CSC), the Finnish
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University Network and CERN, with support by VSL and SP. In
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a 120 day comparison between GPS-PPP time transfer and the
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1000-km long link White Rabbit time link in a live DWDM
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network, the performance and reliability of the fibre link
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were found to be excellent where the results were limited by
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the statistics of the GPS–PPP link.*
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- Some participants using WR: MIKES, VSL, Vrije Universiteit
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Amsterdam
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