[107354] in North American Network Operators' Group
RE: 10GE CWDM
daemon@ATHENA.MIT.EDU (Robert Boyle)
Mon Sep 1 20:51:07 2008
Date: Mon, 01 Sep 2008 20:50:46 -0400
To: nanog@nanog.org
From: Robert Boyle <robert@tellurian.com>
In-Reply-To: <53A6C7E936ED8544B1A2BC990D254F942EA6F7697F@MEMEXG1.HOST.lo cal>
Errors-To: nanog-bounces@nanog.org
At 12:03 AM 8/31/2008, you wrote:
>Currently it is my understanding the 10 Gbps signals are carried on
>4 x 2.5 Gbps signals that are compatible with existing CWDM and DWDM
>equipment. There are 40 Gbps DWDM systems and 10 Gbps lasers on 100
>Gbps and greater capacity systems. I agree with Alex's comments that
>to have 10 Gbps on a CWDM system is to have a CWDM system of at
>least 40 to 100 Gbps and that is very expensive today.
The only affordable CWDM 10G system I have seen although I haven't
used it yet is a single 10G band at 1310 or 1550 with 8 additional
2.5G bands around it. I haven't seen any 4 band 10G CWDM boxes with
XFPs for less than $5000 yet, but I would expect them in the next
year or two - I'm hoping anyway. I'm out of the country at the moment
and access is a bit too slow to look it up easily now. If you need
the manufacturer, let me know and I'll look it up when I return.
-Robert
Tellurian Networks - Global Hosting Solutions Since 1995
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