Cisco Catalyst 3750 Port is Error Disabled
Posted on 2010-11-19
I have a Cisco Catalyst 3750 PoE switch that I'm trying to connect to a NetGear GS748T via the SFP (GBIC) ports (Gigabit uplink). I have purchased the necessary adapters and cable, but when I connect the two switches, the Cisco 3750 shows that the "port is error disabled." On the GUI interface, there are two SFP/GBIC ports (Gi1/0/1 & Gi1/0/2). Port 1 is lit up green and is connected to a different switch. Port 2 is yellow and displays a "port is error disabled" message.
I'm not real familiar with the CLI for this particular switch. I was hoping there is a way to figure out why the port is error disabled using the GUI interface. I have some possible thoughts, but haven't been able to find info on these as of yet:
1) Do the SFP/GBIC ports share a spot with other ports on the switch? For example, on the GS748T, the use of the SFP port disables Ethernet port 48 on the switch. Does the same hold true on the Cisco 3750?
2) Can both SFP/GBIC ports be used simultaneously? It would seem they would not be on the switch if they couldn't both be used at the same time.
Any help or guidance you can provide would be helpful.
Thanks in advance.