nanog mailing list archives

Re: LX sfp minimum range


From: Andrew D Kirch <trelane () trelane net>
Date: Thu, 26 Jan 2012 02:43:54 -0500

I can confirm using LX SFP's for under 100' runs with no problems. Except for the one site that ordered Multi-Mode fiber...

Andrew


On 1/26/2012 12:27 AM, Aftab Siddiqui wrote:
Theoretically speaking Yes there should be an issue while using the LX SFP
for short range because it may damage the receiver part. But we've been
using it for quite a long time within datacenter for rack to rack switch
connectivity without harming the SFP or the performance.

Regards,

Aftab A. Siddiqui


On Thu, Jan 26, 2012 at 12:45 AM, Tim Durack<tdurack () gmail com>  wrote:

On Wed, Jan 25, 2012 at 2:26 PM, jon Heise<jon () smugmug com>  wrote:
we are moving a router between 2 data centers and we only have LX sfp's
for connection, is there any issue using LX sfp's in a short range
deployment ?

A Cisco 1000BASE-LX optic has the following spec:


http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product_data_sheet0900aecd8033f885.html

-3dBm maximum transmit power, -3dBm maximum receive. That means you
can run it over any length. (We use LX for everything.)

--
Tim:>





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