D-Link DES-3026 - Switch - To Display Error Ports

DES-3000 Series Layer 2 Switch CLI Reference Manual
Example usage:
To display error ports:
DES-3026:4#show ports err_disabled
Command: show ports err_disabled
Port Port Connection Status Reason
State
------ --------- --------------------------- -------------
15 Enabled Err-disabled STP LBD
Desc: port15
DES-3026:4#
26