I have 3 C2960g-48TC-L switches chained together with fibre uplinks. I want to uplink a SGE2010 48 port through the fibre.
I got it uplinking once, but then the link failed between 2 of the C2960g-48TC-L switches. There's also a copper uplink between one of the C2960g-48TC-L's and a 16 port Linksys switch. I just get error disabled on the fibre uplink (SFP) ports. Does it require a specific config or should it just work out of the box ? Not all of the switches are running the latest IOS.