Switch#sh diagnostic result switch all 

 

Switch 1:   !SerialNo : FOC1623Y01S

 

  Overall diagnostic result: MAJOR ERROR

 

  Test results: (. = Pass, F = Fail, U = Untested)

 

    1) !TestPortAsicStackPortLoopback ---> .
[color=red]
    2) !TestPortAsicLoopback ------------> F
[/color]
    3) !TestPortAsicCam -----------------> .

    4) !TestPortAsicMem -----------------> .