_____ From: Rod Beck [mailto:Rod.Beck@hiberniaatlantic.com] To: Sean Donelan [mailto:sean@donelan.com], Hank Nussbacher [mailto:hank@efes.iucc.ac.il] Cc: nanog [mailto:nanog@merit.edu] 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. -Dee 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 http://www.hiberniaatlantic.com Wireless: 1-212-444-8829. Landline: 33-1-4346-3209 rod.beck@hiberniaatlantic.com rodbeck@erols.com ``Unthinking respect for authority is the greatest enemy of truth.'' Albert Einstein. -----Original Message----- From: owner-nanog@merit.edu 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.