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@geant@mstdn.social
2025-07-24 12:07:49

🌐 GÉANT sets a new benchmark for long-haul optical networking: 3,403 km of terrestrial transmission at 400G without transponders or regeneration!
This field trial, conducted in June on the GÉANT live production network using Cisco / Acacia 400G ULH QSFP-DD coherent pluggable optics, demonstrates the capabilities of new technologies to bridge extended distances without the need of traditional stand-alone DWDM transponders.
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Quote by Bram Peeters: “This significant milestone reaffirms our vision for the GÉANT network. It emonstrates the capabilities of high capacity, cost effective, easily deployable pluggable solutions to bridge impressive distances and challenging optical links. These advancements, combined with our recent upgrades, ensure GÉANT is ready for the Terabit era.”
Field trial route consisted of a path on the GÉANT network through London → Paris → Geneva → Frankfurt → Amsterdam → London