I know that "show cable-diag tdr int [slot/port]" command can check 10/100/1000 etherent link. For example WS-X6748-GE-TX... etc.
But I can find any command to check gigabit only ethernet link. for example WS-X6724-SFP
Is there no command to check fiber link??
It's got nothing to do with your IOS. The command "show interface transceiver detail" will NOT work on non-DOM (Digital Optical Monitoring) modules, like the SFP. If you have a 10Gb module or the ruggedized SFP, try and this will work.
What are you trying to test on your cable?