[c-nsp] WS-X6748-SFP input errors

Flint, Chris CFlint at mt.gov
Fri Feb 5 14:36:57 EST 2010

Hi Tim,

Assuming you're running older fiber, you probably need mode-conditioning patch cords for LX over MMF.


We ran into this with LX4 optics over MMF... several closets worked correctly, but one in particular wouldn't link up.  We found this document and fixed the problem.



Message: 5
Date: Fri, 5 Feb 2010 13:12:16 -0500
From: Tim Durack <.>
To: Alan Buxey <.>
Cc: "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
Subject: Re: [c-nsp] WS-X6748-SFP input errors
	<9e246b4d1002051012g23166f9bu829d74b61f999b9c at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

On Fri, Feb 5, 2010 at 12:13 PM, Alan Buxey <A.L.M.Buxey at lboro.ac.uk> wrote:
> ..i was thinking the same thing - what about the interfaces at each end
> (eg are they both LH... what is the distance of the link?)

LX/LH on both sides. It's an intra-building run, couple of hundred
metres at most.

(It's LX over mmf as we  have standardized on LX optics. We're trying
to encourage the deployment of smf in our buildings.)


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