Are there inexpensive DWDM products?

Christopher Morrow morrowc.lists at gmail.com
Fri Nov 3 03:12:27 CST 2017


On Thu, Nov 2, 2017 at 10:21 PM, Brent Jones <brent at brentrjones.com> wrote:

> I've set a few people up with FS.com, and my $employer uses then for a lot
> of DWDM without issue.
>
>
as another fs.com user of cwdm muxes... yes, in the limited sample I have
they work for me...
you ought to be able to pair the CWDM muxes like:
  http://www.fs.com/products/42972.html

with their 80km optics and get pretty far along... a 'city' solution
shouldn't really need more than 80k, right? :)


> Quality bites everyone, cleaning terminations is one of the neglected steps
> :p
>
> On Thu, Nov 2, 2017 at 2:36 PM, Micah Croff <micahcroff at gmail.com> wrote:
>
> > I've used Adva passive DWDM MUX's and colored FlexOptix DWDM 10G optics.
> It
> > worked very well with zero issues.  I haven't personally used MUX's from
> > fs.com but I've had colleagues use them and caution against them due to
> > the
> > quality.
> >
> > On Thu, Nov 2, 2017 at 1:37 PM, Mike Hammett <nanog at ics-il.net> wrote:
> >
> > > fs.com DWDM with a 1310 pass through port. That way you can still run
> > 40G
> > > or 100G over the 1310.
> > >
> > >
> > >
> > >
> > > -----
> > > Mike Hammett
> > > Intelligent Computing Solutions
> > > http://www.ics-il.com
> > >
> > > Midwest-IX
> > > http://www.midwest-ix.com
> > >
> > > ----- Original Message -----
> > >
> > > From: "LF OD" <bz_siege_01 at hotmail.com>
> > > To: nanog at nanog.org
> > > Sent: Thursday, November 2, 2017 1:01:10 PM
> > > Subject: Are there inexpensive DWDM products?
> > >
> > > We have several buildings and a couple data centers spread around the
> > city
> > > and interconnected via dark fiber. It's a very simple setup - no ROADM,
> > no
> > > real ring, no extended layer-2 or layer-3 via the optical gear.
> > >
> > >
> > > Pretty much we just mux/demux a channel for each building so that each
> > > building sees the two data centers directly even though the fiber span
> > may
> > > wind through a couple buildings along the way. In some cases, the
> > distance
> > > is short enough to use colored optics in the network gear, but mostly
> the
> > > distances are just long enough to warrant transponder cards.
> > >
> > >
> > > All that being said, a lot of the gear is approaching end of life
> > (support
> > > in some cases). I'm not an optical guru but I can muddle my way through
> > > with Cisco ONS and I'm aware that Ciena and Fujitsu also have similar
> > > products. We really don't have budget for a large optical refresh
> effort.
> > > However, we've saved some money here and there in the routing/switching
> > > arena by leveraging Arista and even Cumulus. I'm wondering if there are
> > > smaller players in the optical arena that have a good quality/price
> > value?
> > >
> > >
> > > Again, we don't need sophisticated features... we primarily have 2-to-4
> > > 1Gb and 10Gb ports required per site, then we mux those onto a
> wavelength
> > > and extend it to the two data centers. Most buildings are set up the
> same
> > > way, each on a different wavelength so the don't even see each other...
> > > only the data centers.
> > >
> > >
> > > If you guys know of any optical gear that you can vouch for (and which
> > > costs less than a small house), we would greatly appreciate it. Thanks
> > >
> > >
> > > LFOD
> > >
> > >
> >
>
>
>
> --
> Brent Jones
> brent at brentrjones.com
>


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