[192107] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: Coherent CWDM 40G QSFP

daemon@ATHENA.MIT.EDU (Rod Beck)
Wed Oct 19 17:52:21 2016

X-Original-To: nanog@nanog.org
From: Rod Beck <rod.beck@unitedcablecompany.com>
To: Mike Hammett <nanog@ics-il.net>, Tim Durack <tdurack@gmail.com>
Date: Wed, 19 Oct 2016 21:52:17 +0000
In-Reply-To: <1949363373.519.1476913587878.JavaMail.mhammett@ThunderFuck>
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

True 40 gigs is rare period. Most of the time it is bandwidth limiting on a=
 100 gig wave.


________________________________
From: NANOG <nanog-bounces@nanog.org> on behalf of Mike Hammett <nanog@ics-=
il.net>
Sent: Wednesday, October 19, 2016 11:46 PM
To: Tim Durack
Cc: nanog list
Subject: Re: Coherent CWDM 40G QSFP

Apparently I just remembered the big transport platforms using coherent 40G=
 and 100G and assumed there was a cheap variant, but there isn't.




-----
Mike Hammett
Intelligent Computing Solutions

Midwest Internet Exchange

The Brothers WISP

----- Original Message -----

From: "Tim Durack" <tdurack@gmail.com>
To: "Mike Hammett" <nanog@ics-il.net>, "nanog list" <nanog@nanog.org>
Sent: Tuesday, October 18, 2016 9:28:02 PM
Subject: Re: Coherent CWDM 40G QSFP

Not aware of ACO/DCO in QSFP form factor. Inphi is doing 100G QSFP28 PAM4 D=
WDM for MS. Probably the best you will see for a while.


On Tue, Oct 18, 2016 at 4:50 PM Mike Hammett < nanog@ics-il.net > wrote:


Does anyone make a coherent CWDM 40G QSFP? I thought so, but the first coup=
le places I checked, I struck out at. This would be for a passive mux\MROAD=
M.




-----
Mike Hammett
Intelligent Computing Solutions

Midwest Internet Exchange

The Brothers WISP





home help back first fref pref prev next nref lref last post