4 Jun 2025
CSC, SURF and Nokia Achieve 1.2 Tbit/s Data Transfer to prepare long haul network for new LUMI-AI supercomputer and AI Factories
Nokia, CSC – IT Center for Science, and SURF have successfully tested a high-capacity, quantum-safe fibre-optic connection exceeding 1.2 terabit per second (Tbit/s) between Amsterdam, the Netherlands and Kajaani, Finland with data traversing over 3500 kilometers. The trial, which was conducted in May 2025, demonstrated the potential of ultra-fast, cross-border connectivity for research.
Tests were carried out along several routes, including the longest which spanned 4,700 km through Norway at a capacity of 1Tbit/s. To put this in perspective, 1 Tbit/s is enough to stream 200,000 full HD movies (at 5 Mbit/s each) simultaneously.
“As SURF we are ready to take the next step in aligning the European supercomputers. These efforts offer future perspectives to train GPT-nl on LUMI or for a researcher to compute on LUMI with very large datasets hosted at SURF, such as the KNMI (The Royal Netherlands Meteorological Institute) datasets. We are very grateful to our Nordic partners for their help setting up this trial connection. This is again an example of the continued good cooperation between NRENs to create the best possible international infrastructure for research and education."
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