nanog mailing list archives

Re: Giga fiber Tap


From: Frank Coluccio <frank () dticonsulting com>
Date: Fri, 30 Nov 2007 11:45:13 -0600


I guess I mis-read Chiyoung's shorthand, 
i.e., "giga fiber", which I took to mean 
beaucoup fibers. 

Please excuse the noise.

Frank A. Coluccio
DTI Consulting Inc.
212-587-8150 Office
347-526-6788 Mobile

On Fri Nov 30 11:43 , Sean Donelan  sent:

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.



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