nanog mailing list archives

Re: Russian diplomats lingering near fiber optic cables


From: valdis.kletnieks () vt edu
Date: Fri, 02 Jun 2017 14:40:35 -0400

On Fri, 02 Jun 2017 13:23:26 -0400, Christopher Morrow said:
is this a case of 'wherer the cable gets dry' vs 'where the electronics
doing cable things lives' ?
aren't (normally) the dry equipment locations a bit inland and then have
last-mile services from the consortium members headed inland to their
respective network pops?

Well, I'd be willing to buy that logic, except the specific buildings called
out look pretty damned big for just drying off a cable.  For example, this
is claimed to be the US landing point for TAT-14 - looks around 4K square feet?

http://virtualglobetrotting.com/map/tuckerton-cable-landing-station/view/google/

Though I admit I'm foggy on how much gear is needed to stuff however many amps
at 4,000 volts down the cable core to power the repeaters.  But again - if
there's gear stuffing that many amps at that many volts down a cable, salt
water could be the start of a bad day...

(And note - I'm not saying that *everybody* who built a cable landing station
managed to get it wrong.  I'm saying that with the number of landing stations
in existence, the chance that *somebody* got it wrong is probably scarily high.
Telco and internet experiences in New Orleans during Katrina and NYC during
Sandy suggest there's a lot of infrastructure built with "we never had storm
surge in this building before so it can't happen" planning....)

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