I have a new Cisco SG-200-26P switch that has ports for SFP connections. Ports 25 & 26 are combo copper/fiber ports. According to the documentation, these ports are shared. When I plug a patch cable into either port, I get link activity. However, when I plug in a GBIC, the link lights stay dim. When the port status is checked thru the web interface, during copper connections, it shows "UP".
Is there anything special that must be done to get the SFP ports to work? Must jumbo frames be enabled? I am NOT trying to use copper and fiber in the same port at the same time.