RE: fiber cut 19 May/PM -> 20 May/AM in Ashburn, VA (lawnmower?!)

["Dan Hanson (danhanso)" <danhanso () cisco com>]

And unfortunately, sometimes cuts might be deliberate.   I havent kept up on
what the FBI came up with, but they were investigating some cuts in the
Bellingham, WA area.  Same cable was cut twice over the course of 2 years.

http://www.usatoday.com/tech/news/2003-09-04-fiber-fails_x.htm

Dan Hanson

> -----Original Message-----
> From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On 
> Behalf Of Deepak Jain
> Sent: Friday, May 21, 2004 9:42 AM
> To: Joe Abley
> Cc: Robert E. Seastrom; Dan Armstrong; nanog () merit edu
> Subject: Re: fiber cut 19 May/PM -> 20 May/AM in Ashburn, VA 
> (lawnmower?!)
>
>
>
> > > configuration known as "collapsed backbone".  in this 
> instance, both 
> > > pairs of fiber ride in the same conduit for some portion of the 
> > > distance
> >
> >
> > ... or even as two wavelengths on the same pair of fibre.
> >
> > It's a sick, sick, twisted world.
>
>
> Come on, that is what we call lambda-diversity. In case your 
> fiber fails 
> to carry, say 1550nm in the middle of the night, you are 
> protected with 
> your 1590nm lambda.
>
> I don't believe how many people engineer for physical 
> diversity and not 
> lambda diversity -- and then its too late.
>
> <jk, I've been up since 6:30am>
>
> DJ