[177901] in North American Network Operators' Group
Re: Low cost WDM gear
daemon@ATHENA.MIT.EDU (Tim Durack)
Sat Feb 7 17:32:52 2015
X-Original-To: nanog@nanog.org
In-Reply-To: <5739795.895.1423332278146.JavaMail.mhammett@ThunderFuck>
Date: Sat, 7 Feb 2015 17:32:44 -0500
From: Tim Durack <tdurack@gmail.com>
To: Mike Hammett <nanog@ics-il.net>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
You can do ~500km without inline amplifier sites using EDFA+Raman+ROPA, but
you are going to need some serious optical engineering to make that work.
The more standard way to do it is amplifier sites every 80-100km for EDFA.
If you are doing 10GigE you will need to allow for DCM also.
On Sat, Feb 7, 2015 at 1:04 PM, Mike Hammett <nanog@ics-il.net> wrote:
> One particular route I'm looking at is 185 miles, so of the options
> presented 300 km is closest. ;-)
>
>
>
>
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
>
> ----- Original Message -----
>
> From: "Christopher Morrow" <morrowc.lists@gmail.com>
> To: "Kenneth McRae" <kenneth.mcrae@me.com>
> Cc: "NANOG" <nanog@nanog.org>
> Sent: Saturday, February 7, 2015 12:02:11 PM
> Subject: Re: Low cost WDM gear
>
> would be good for mike to define 'long distances' here, is it:
> 2km
> 30km
> 300km
> 3000km
>
> Probably the 30-60k range is what you mean by 'long distances' but...
> clarity might help.
>
> On Sat, Feb 7, 2015 at 12:55 PM, Kenneth McRae <kenneth.mcrae@me.com>
> wrote:
> > Mike,
> >
> > I just replaced a bunch of FiberStore WDM passive muxes with OSI Hardwa=
re
> > equipment. The FiberStore gear was a huge disappointment (excessive los=
s,
> > poor technical support, refusal to issue refund without threatening leg=
al
> > action, etc.). I have had good results from the OSI equipment so far. I
> > run passive muxes for CWDM (8 - 16 channels).
> >
> > On Feb 07, 2015, at 09:51 AM, Manuel Mar=C3=ADn <mmg@transtelco.net> wr=
ote:
> >
> > Hi Mike
> >
> > I can recommend a couple of vendors that provide cost effective
> solutions.
> > Ekinops & Packetlight.
> >
> > On Saturday, February 7, 2015, Mike Hammett <nanog@ics-il.net> wrote:
> >
> > I know there are various Asian vendors for low cost (less than $500)
> muxes
> > to throw 16 or however many colors onto a strand. However, they don't
> work
> > so well when you don't control the optics used on both sides (therefore
> > must use standard wavelengths), obviously only do a handful of channels
> and
> > have a distance limitation.
> > What solutions are out there that don't cost an arm and a leg?
> > -----
> > Mike Hammett
> > Intelligent Computing Solutions
> > http://www.ics-il.com
> >
> >
> > --
> > TRANSTELCO| Manuel Marin | VP Engineering | US: *+1 915-217-2232* | MX:
> *+52
> > 656-257-1109*
> >
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--=20
Tim:>
