Agreed. But bear in mind that DWDM infrastructure that does 80 to 120 waves per fiber pair is very expensive.
REgards, Roderick S. Beck Director of European Sales Hibernia Atlantic 13-15, rue Sedaine, 75011 Paris http://www.hiberniaatlantic.com Wireless: 1-212-444-8829. French Landline: 33+1+4355+8224 French Wireless: 33-6-14-33-48-97. AOL Messenger: GlobalBandwidth rod.b...@hiberniaatlantic.com rodb...@erols.com ``Unthinking respect for authority is the greatest enemy of truth.'' Albert Einstein. -----Original Message----- From: Neil Harris [mailto:n...@tonal.clara.co.uk] Sent: Wed 4/15/2009 4:00 PM To: Rod Beck Cc: joel.merc...@verizon.net; Wallace Keith; nanog@nanog.org Subject: Re: Diversity - was: Fiber cut in SF area Rod Beck wrote: > And if the 10 gig wave is from 1 Wilshire to 60 Hudson with hundreds of regen > huts and 30 POPs in between? > > How that affect the capex cost? > > Sure, the capex cost of offering full diversity is substantial; my point was just that the cost of switching STM64 signals at the endpiints need not be a significant issue, since you only have to switch the optical path, which is cheap to do and highly reliable, and the kit to do that will only make up a tiny fraction of the rest of the capital and operations cost. -- Neil
