TransAtlantic Cable Break

W.D.McKinney deem at
Sat Jun 23 05:09:31 UTC 2007


From: Rod Beck [mailto:Rod.Beck at]
To: Sean Donelan [mailto:sean at], Hank Nussbacher [mailto:hank at]
Cc: nanog [mailto:nanog at]
Sent: Fri, 22 Jun 2007 10:14:20 -0800
Subject: RE: TransAtlantic Cable Break


Protected 10 gig waves NYC/London are extremely expensive. Say $60K or more per month.
  Not bad as DS3's between Alaska & Seattle used to cost that much.


  So it usually makes sense for the Layer 3 guys to lease diversely routed 10 gig waves and do the protection themselves using MPLS or load balancing or some other protocol about which I know little ...
  Roderick S. Beck
  Hibernia Atlantic
  1 Passage du Chantier, 75012 Paris
  Wireless: 1-212-444-8829.
  Landline: 33-1-4346-3209
  rod.beck at
  rodbeck at
  ``Unthinking respect for authority is the greatest enemy of truth.'' Albert Einstein.
  -----Original Message-----
  From: owner-nanog at on behalf of Sean Donelan
  Sent: Fri 6/22/2007 4:56 PM
  To: Hank Nussbacher
  Cc: nanog
  Subject: Re: TransAtlantic Cable Break
  On Fri, 22 Jun 2007, Hank Nussbacher wrote:
  >> Tell that to the 10 gig wave customers who lost service. Very few cable
  >> systems provide protection at the 10 gig wave level.
  > If you don't pay the extra amount for a protected circuit, why should your
  > circuit get protection for free when others have to pay for it?  Now, if
  > there are 10G customers with protected circuits who lost service, then
  > hopefully they have in their contract hefty penalty clauses against the
  > carrier.  If not, then they are just plain stupid.
  Is paying for "protected circuits" actually worth it.  Or are you better
  off just buying two circuits and using both during normal conditions.
  Use switching at layer 3 to the remaining circuit during abnormal
  conditions.  Most of the time, you get twice the capacity for only twice
  the price instead of a "protected circuit" where you only get the once
  the capacity for twice the price.
  Of course, there is still the problem some facility provider will "groom"
  both your circuits on to the same cable.  If you are buying pre-emptable
  circuits, hopefully you understand what that means.
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