Connecting SRW2048s over multimode fiber

Unanswered Question
Jul 14th, 2009

OK... I'm a fiber / optical networking newbie so I apologize well in advance if my vocabulary is way off in this post... but here goes...

I wanted to upgrade our old 10/100 cisco switches (Catalyst 3500) to something gigabit so I bought some SRW2048s.  I'm trying to connect them over our existing multimode fiber (terminated in ST connectors) but they won't link.  I bought MGBSX1s to accomplish this task and some LC-ST fiber cable to make the connection.  I think I have the ST connections right... on one end it's red/black (for Tx/Rx) for the two ST connectors, and on the other end it's black/red (Rx/Tx).  Is there anything I need to do to the switch to make it work right?

Any help would be greatly appreciated!

Kevin

Message was edited by: mack_kevin for grammar

I have this problem too.
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mack_kevin Tue, 07/14/2009 - 12:45

by turning off auto-negotiate on the switches, I've gotten them to link up...  any reason why they can't auto-negotiate?  or is that just used by computers and needs to be turned off when going switch to switch?

mack_kevin Tue, 07/14/2009 - 12:46

it's amazing what a little research into a problem can do...

"Autonegotiation (formerly NWay) is an Ethernet procedure..."

looky there... an ethernet procedure probably won't help fiber optic connections....

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