nanog mailing list archives
Re: Sicily to Egypt undersea cable disruption
From: Sean Donelan <sean () donelan com>
Date: Thu, 31 Jan 2008 04:13:35 -0500 (EST)
On Thu, 31 Jan 2008, Martin Hannigan wrote:
From what I read about this cut, the way it happened seemed to havefigurative odds of 1:1,000,000. It looks like "authorities" moved the anchorage area for some undefined reason. Cables are documented on marine charts and, at least theoretically under international standards, Captains and Pilots are lawfully required to refer to them before dropping the hook. Having some experience in marine operations, it would be 'curious' for a Captain or Pilot to not notice that there was a cable marking so close to their re-designated anchorage based on the chart that they would need to refer to for low tide depths and other (un)common hazards to insure that they weren't in imminent danger.
I'll leave the international law opinions to the lawyers rather than the network engineers :-)
I'm sure that there is more to this story than meets the eye.
Single cable cuts are very interesting anymore because most networks have figured out most of those issues, usually by network darwinism. Stuff
breaks "normally." There are the usual exception to the rule networks.What makes this incident more interesting, as I indicated if its not one cable its another cable, was the double international cable cuts.
Likewise, what made Tawain 2006 interesting wasn't an earthquake affected a cable, but there were multiple cable cuts in the region. Quick, everyone get out your international cable maps and speculate where in the world the next double (or triple, quad, etc) cable cut could happen. Due to regional politics, I don't think there are many overland geographic diverse routes between countries to backup the undersea routes. If I remember the Wired article, FLAG did try to build some overland geographic diversity through the region. Stuff happens. Although it will take a couple of weeks to repair these cables (which seems to be the new "normal" repair time), I expect most user traffic will be re-routed through less optimal but functional routes within a few days. Again, with the usual exception to the rule networks.
Current thread:
- Sicily to Egypt undersea cable disruption Sean Donelan (Jan 30)
- <Possible follow-ups>
- Re: Sicily to Egypt undersea cable disruption Paul Ferguson (Jan 30)
- Re: Sicily to Egypt undersea cable disruption Marshall Eubanks (Jan 30)
- Re: Sicily to Egypt undersea cable disruption Todd Underwood (Jan 30)
- Re: Sicily to Egypt undersea cable disruption Martin Hannigan (Jan 30)
- Re: Sicily to Egypt undersea cable disruption Jim Mercer (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Paul Ferguson (Jan 30)
- Re: Sicily to Egypt undersea cable disruption Martin Hannigan (Jan 30)
- Re: Sicily to Egypt undersea cable disruption Sean Donelan (Jan 31)
- Re: Sicily to Egypt undersea cable disruption Hank Nussbacher (Jan 31)
- 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 Martin Hannigan (Jan 30)