nanog mailing list archives
Re: Sicily to Egypt undersea cable disruption
From: "Steven M. Bellovin" <smb () cs columbia edu>
Date: Thu, 31 Jan 2008 16:56:14 +0000
On Thu, 31 Jan 2008 13:20:07 -0000 "Rod Beck" <Rod.Beck () hiberniaatlantic com> wrote:
Cables are mostly damaged by fishing in coastal areas (continental shelf) or by deep undersea currents that erode the polyurethane jacket that protects them. So it is crucial that the cable be buried at least one meter and preferably two meters in coastal waters. The big fishing boats scrape sea floor - the ecological equivalent of surface or 'strip' mining. These boats scrap the ocean floor and can hit the cables or even sever them.
In some areas, shark bites are a threat, too -- see http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel1/48/1267/00029600.pdf (subscription required for the full text), or http://www.tscm.com/phone/oceanic_cable.html --Steve Bellovin, http://www.cs.columbia.edu/~smb
Current thread:
- Re: Sicily to Egypt undersea cable disruption, (continued)
- Re: Sicily to Egypt undersea cable disruption Alexander Harrowell (Jan 31)
- RE: Sicily to Egypt undersea cable disruption Rod Beck (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Martin Hannigan (Jan 31)
- RE: Sicily to Egypt undersea cable disruption Rod Beck (Jan 31)
- RE: Sicily to Egypt undersea cable disruption Rod Beck (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Martin Hannigan (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Steven M. Bellovin (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Simon Lockhart (Jan 31)
- RE: Sicily to Egypt undersea cable disruption Rod Beck (Jan 31)
- RE: Sicily to Egypt undersea cable disruption Rod Beck (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Steven M. Bellovin (Jan 31)