I'm currently having an issue with a recently installed fiber run between two buildings. Here is the scenario.
Site 1 - Cisco Catalyst 2950, w/ GBIC module WS-G5484 1000Base-SX
Site 2 - Cisco Catalyst 3560 w/ SFP module GLC-SX-MM 1000Base-SX
Approx 1400ft of 50/125 OM2 multimode fiber has been run between the buildings. One termination done on each end - ST-SC on one side (GBIC) and ST-LC on the other (SFP). I'm currently getting no link status on both switches.
The cable installer is telling me everything has tested ok. He is pointing the finger at our Cisco gear. Before the switches were deployed I tested the switch hardware / modules in a lab using a patch cable and was able to establish a link just fine.
From what I was told, 50/125 OM2 fiber should be ok up to 500 meters @ 1GB speed. I'm not sure if this is a distance issue and that we should have gone with OM3 type fiber. Not sure where to go from here.
Please help - thanks!