Are there inexpensive DWDM products?

Christopher Morrow morrowc.lists at gmail.com
Fri Nov 3 03:14:18 CST 2017


On Thu, Nov 2, 2017 at 11:12 PM, Christopher Morrow <morrowc.lists at gmail.com
> wrote:

>
>
> 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? :)
>
>

the example 80k cwdm sfp+:
http://www.fs.com/products/19371.html



> 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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