Infinera revealed one of the highest profile non-telecommunications customers one could have this morning. Their gear will be lighting some fiber for Facebook. And by some, they mean "the world's longest terrestrial optical network route".
Facebook will be putting the DTN-X on a route spanning 3,998km over in Europe without regeneration. That will give them some 8Tbps to work with, putting those 500Gbps super-channels to work.
Missing from the announcement was any detail on the actual route being deployed, although Facebook's European network was discussed. Facebook's big data center is in Lulea, Sweden, and there are only so many directions one can go almost 4,000km from there without going subsea and reaching a market Facebook is likely to have acquired dark fiber to.
It's much further than that to go east across Asia toward Beijing, and much less to hit the major western European markets in Amsterdam, Frankfurt, London, or Paris. 4000km does, however, happen to be just about exactly the driving distance from Lulea, Sweden to Madrid, Spain. That's my guess anyway.
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