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Brocade SFP over 30km
Hello,
Is anyone know if a Brocade SFP could provide connectivity to 35 km? I know there is a 30 km on 4gb/s SFP, but is there other SFP that is compatible with DS5300 and could cover this distance or if the 30km Brocade SFP could cover it but on 1 or 2 Gb/s?
felipon1
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March 30th, 2012 02:00
Hi,
In the following link you will see the supported SFPs on Brocade switchs, unfortunately none of them supports 35 Km:
http://www.brocade.com/downloads/documents/matrices/SFP_Matrix.pdf
AFAIK, the distance limitation has to do with the Tx Power and Rx Power, rather than with the speed. If the lenght of the cable is too long, the Rx power detected may not be good enough to stablish de ISL. On the other hand, if you open a case with your service provider reporting any issues in the SAN, first thing they will tell you is that distance is too big for that type of sfp. I recommend you to use another technology in between, such us CWDM, DWDM or TDM.
Rgds