[70686] in North American Network Operators' Group
RE: fiber cut 19 May/PM -> 20 May/AM in Ashburn, VA (lawnmower?!)
daemon@ATHENA.MIT.EDU (Dan Hanson (danhanso))
Fri May 21 11:05:02 2004
Reply-To: <danhanso@cisco.com>
From: "Dan Hanson (danhanso)" <danhanso@cisco.com>
To: <nanog@merit.edu>
Date: Fri, 21 May 2004 10:03:31 -0500
In-Reply-To: <40AE1546.2060407@ai.net>
Errors-To: owner-nanog-outgoing@merit.edu
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
>
>
