nanog mailing list archives

Re: Russian diplomats lingering near fiber optic cables


From: Hank Nussbacher <hank () efes iucc ac il>
Date: Sat, 3 Jun 2017 21:13:35 +0300

On 02/06/2017 19:46, valdis.kletnieks () vt edu wrote:
On Fri, 02 Jun 2017 15:11:36 -0000, Rod Beck said:

Landing stations can be 10 to 30 kilometers from the beach manhole. I don't
think it is big concern. Hibernia Atlantic dublin landing station is a good
example.
So 100% of those beach manholes are watertight and safe from flooding, and
don't contain any gear that will get upset if it does in fact end up with
salt water in there?

This listing for landing points in Japan seems to call out a hell of a lot of
specific buildings that are nowhere near 10 to 30 km inland:
https://www.google.com/maps/d/viewer?mid=1Siy5qBMoFyBUlSFNHdHDpGAkIR0

Singapore: Right on the water.
http://www.streetdirectory.com/sg/singapore-cable-landing-station/1-changi-north-rise-498817/8118_79569.html

Hong Kong:  More of same (though with its hills, some of the 8 sites may
actually be a bit above sea level even though they're 2 blocks from water)
http://www.ofca.gov.hk/en/industry_focus/telecommunications/facility_based/infrastructures/submarine_cables/index.html

Cryptome has a bunch of older images that tend to indicate that a lot of
buildings right on the water in New Jersey and Long Island are involved:
https://cryptome.org/eyeball/cable/cable-eyeball.htm

And that's just in the first 3 pages returned by Google for "cable landing station
map".

The experience of the Manhattan phone system when the conduits and basements
flooded during Sandy tends to indicate that we *are* in for similar
surprises over the coming decades.

I think you are missing the point.  The issue is not the actual landing
station but the actual *exact *path the cable takes from 100meter out at
sea to the landing station.  For that you need GPS coordinates down to a
3' level as the fiber snakes its way from shore into the city.   I do
not believe that is available on the Internet and is only available to
the actual company that laid the cable.  One can try to deduce the path
by looking for manhole covers but that would require opening and
physically inspecting.

-Hank



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