ps - a 2007 updated prezo on SURFnet6's DWDM network presented by Erik-Jan Bos:
http://www.ces.net/doc/seminars/cef2007/p/bos.ppt -- On Tue Apr 29 15:05 , Frank Coluccio sent: >re: "the latest CPL technology from Nortel is a real breakthrough, for once a >vendor has listened and understood the challenges for operators and actively >addressed our concerns." > >When CPL was appeared I found its architecture refreshingly straightforward, as >you've also noted, which was best demonstrated (to me, at least) by Kees >Neggers >within SURFnet6 throughout the Netherlands about three years ago (thus allowing >him to offload boatloads of Layer3 gear). > >I'm not sure which issue of the Cook Report it was in, but the details of this >SURFnet6 deployment were captured in an interview of Neggers quite nicely by >Gordon Cook in one of his reports during that era. > >During the intervening three years, however, advancements in dispersion >management have been introduced and opened the door for some new players, such >as >Infinera, whose use of electronic dispersion compensation (EDC) in its WDM >platforms has now given it somewhat of an edge, or so it seems at the moment, >based on the market share it has gained in a very short time. I'm hardly >suggesting that Infinera trumps the former CPL approach across all areas of >design consideration, but only that it's an approach that merits >investigation. > >I should note that Infinera went diametrically against the grain of the >"all-optical" holy grail that is commonly sought by many, and actually >leverages >its ability to perform functions in the 'electronic' domain a lot more >efficiently than other vendors have been capable of achieving in the purely >optical domain, thus positioning itself in a category that's pretty much all >its >own today. I'd be eager to read comments and criticisms from anyone who's had >actual experience with its wares. > >Frank A. Coluccio >DTI Consulting Inc. >212-587-8150 Office >347-526-6788 Mobile > >On Fri Apr 25 9:31 , "Neil J. McRae" sent: > >>The current technologies for DWDM have really made it technology >>that's reasonably straight forward to deploy. The last >>generation was a nightmare! >> >>Tuneable optics, dispersion compensation, and ROADM have made >>a substantial difference to deploying and operating DWDM networks. >> >>I had experience with the former generation system from Nortel >>which although very reliable it was very resource intensive >>to deploy new services, the latest CPL technology from Nortel >>is a real breakthrough, for once a vendor has listened and understood >>the challenges for operators and actively addressed our concerns. >> >>-----Original Message----- >>From: Scott E. MacKenzie [EMAIL PROTECTED]','','','')">[EMAIL PROTECTED] >>Sent: Friday, April 25, 2008 4:00 AM >>To: NANOG >>Subject: [NANOG] DWDM >> >> >>Does anyone know where I can locate a list of DWDM networks deployed for >>Education, Science & Research, and Commercialization? >> >>We need to determine the practicality of DWDM use... >> >> >>Scott >> >> >> >>_______________________________________________ >>NANOG mailing list >>NANOG@nanog.org >>http://mailman.nanog.org/mailman/listinfo/nanog > > > >_______________________________________________ >NANOG mailing list >NANOG@nanog.org >http://mailman.nanog.org/mailman/listinfo/nanog _______________________________________________ NANOG mailing list NANOG@nanog.org http://mailman.nanog.org/mailman/listinfo/nanog
