[101013] in North American Network Operators' Group
Re: Giga fiber Tap
daemon@ATHENA.MIT.EDU (Sean Donelan)
Fri Nov 30 11:43:59 2007
Date: Fri, 30 Nov 2007 11:43:04 -0500 (EST)
From: Sean Donelan <sean@donelan.com>
To: Frank Coluccio <frank@dticonsulting.com>
cc: =?X-UNKNOWN?B?waTEob+1?= <lionair@samsung.com>,
"nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <3714.1196404522@dticonsulting.com>
Errors-To: owner-nanog@merit.edu
On Fri, 30 Nov 2007, Frank Coluccio wrote:
> Unless I'm misreading the requirement, this
> sounds like a job for a Calient or a Glimmerglass
> optical switch, capable of non-intrusive bridging
> and/or insertion. For large jobs, in any case.
>
> A demo of the Glimmerglass device can be viewed
> on the company's "Government Signals Monitoring
> and Analysis" page:
>
> http://www.glimmerglass.com/defense.aspx
This is probably bit more than would be needed for the apparent
application of monitoring a particular routing point for a LAN. A
simple passive fiber tap may be sufficient.
An optical switch may be more suitable when you have large numbers of
sources and need to dynamically monitor a subset of different fibers
on a regular basis. Installing a switch is less useful if you need to
check a particular fiber on a permanent basis.
Of course, if you already have an "optical DACS" in your network, then
it makes sense to use it instead of installing something else.