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

  • From: Joe Abley
  • Date: Fri May 21 10:25:31 2004


On 21 May 2004, at 08:09, Robert E. Seastrom wrote:

sonet, obviously, does not *have* to be in a ring, but it often is.
unfortunately, a fair percentage of the time, the additional
protection offered by a ring topology is a mirage, due to a
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.


Joe





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