On Fri, 25 Apr 2008, John Lee wrote: > In your talk, I agree that the CAN with your CWDM is not that expensive > but you also mention that the tighter DWDM with long haul optics is > expensive ie "Everybody knows how to do (active) xWDM by giving a lot of > money to (insert vendor of choice]:" > > When you talk about the tighter itu spacing for "real" DWDM and the > lasers with fiber that can handle the power, jitter, chromatic > dispersion et al. the optics you mention will not handle that. > > We have all duct taped optical systems on campus for the lab "and across > the state of Georgia" see the Peach Net map. > > What is the largest number of lambdas you have actually run on a single > fiber with your duct tape system and how bad was the optical cross talk? I'd be curious to ask reverse question, did anyone *have* real problems deploying duct tape systems, or power jitter chromatic dispersion is vendor mumbo jumbo designed to make you buy their gear?
(within the distance limits spec'd, 80km dwdm etc) -alex _______________________________________________ NANOG mailing list NANOG@nanog.org http://mailman.nanog.org/mailman/listinfo/nanog
