[180588] in North American Network Operators' Group
RE: Tunable SFP
daemon@ATHENA.MIT.EDU (Tony Wicks)
Sun Jun 7 17:15:56 2015
X-Original-To: nanog@nanog.org
From: "Tony Wicks" <tony@wicks.co.nz>
To: "'Baldur Norddahl'" <baldur.norddahl@gmail.com>
In-Reply-To: <CAPkb-7CiDGavx1UXaRukWufH31BxC=c3i2j6OnEng4NE1W=Xew@mail.gmail.com>
Date: Mon, 8 Jun 2015 09:15:23 +1200
WTL-MailScanner-From: tony@wicks.co.nz
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
I don't quite see why you would want to use a tuneable 1G optic now =
days. Generally people use coloured optics to either increase the =
capacity they can push down a Dark Fibre or to interconnect with a DWDM =
OTN. In days past using different wavelengths for traffic separation =
would be not unheard of but in today's world there are many better ways =
of doing that. The use of tuneable optics reduces sparing and complexity =
but it is a very difficult and expensive manufacturing task and I can =
understand why no manufacturer would bother with 1G as that seems like a =
very small market. If you really want 1G there are plenty of CWDM fixed =
optics available. If you need more capacity, well really 10G is not at =
all expensive now days. If you want traffic separation then use MPLS. If =
you have old 1G only switches, well, you know the answer to that.
My 2c
-----Original Message-----
Hi,
I believe nobody actually answered the original question: is there any =
tunable SFP module available. Notice the lack of a + in that statement. =
The datasheets for modules cited in this thread are all 10G modules with =
minimum speed of 8.5G. Nothing that will work at 1G.
