Re: [NANOG] DWDM

["Neil J. McRae" <neil () DOMINO ORG>]

Frank,
Agreed, the infinera platform is very good also.
thanks for he link.

Neil.

-----Original Message-----
From: Frank Coluccio [mailto:frank () dticonsulting com] 
Sent: 29 April 2008 20:31
To: NANOG; Neil J. McRae; Frank Coluccio
Subject: Re: [NANOG] DWDM

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
[smackenzie () qf org qa','','','')">smackenzie () qf org qa]
> > 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
>
>
>
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