[162678] in North American Network Operators' Group
RE: 80 km BiDi XFPs
daemon@ATHENA.MIT.EDU (Frank Bulk)
Tue Apr 30 01:07:09 2013
From: "Frank Bulk" <frnkblk@iname.com>
To: =?iso-8859-1?Q?'J=E9r=F4me_Nicolle'?= <jerome@ceriz.fr>, <nanog@nanog.org>
In-Reply-To: <517E050D.90402@ceriz.fr>
Date: Tue, 30 Apr 2013 00:05:52 -0500
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
You're the first person to suggest that kind of configuration, so =
thanks.
We ended up purchasing an 8-wave DWDM from our transport vendor, as it
solved the problem and gives us a path to future growth.
Frank
-----Original Message-----
From: J=E9r=F4me Nicolle [mailto:jerome@ceriz.fr]=20
Sent: Monday, April 29, 2013 12:29 AM
To: nanog@nanog.org
Subject: Re: 80 km BiDi XFPs
Le 03/04/2013 01:15, Frank Bulk a =E9crit :
> BiDi XFPs
Why not using a duplex 120km and a circulator[1] ? This could be far
more reliable if you avoid PC connectors on the way.
You may also mux several DWDM waves using this and a low-loss mux (found
<1.5dB for 8 channels).
Of course, for such lenghts, you may need a chromatic dispersion
compensator.
[1] http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=3D373
--=20
J=E9r=F4me Nicolle
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