81NOTE:• If a port is automatically shut down due to hardware failure protection, its status displayed with thedisplay interface command is Protect DOWN. To bring up the port, use the undo shutdown commandon the port.• If a card is isolated or its software is not allowed to be loaded due to hardware failure fix operations,you can plug out the card and then plug it in to recover the card status.• After configuring in-service diagnosis and failure protection, you can use the displayhardware-failure-detection command to check the running information of the feature.Displaying the operating state of fansUse the display fan command to display the operating state of fans on your switch.# Display the detailed information of all fans on the switch in standalone mode. display fan verboseFan-tray 1:Software version: 101Hardware version: Ver.ACPLD version: 001Fan number: 12Temperature: 29 CHigh temperature alarm threshold: 70 CLow speed alarm threshold: 900 rpmFan Status Speed(rpm)--- ---------- ----------1 normal 27002 normal 24003 normal 24004 normal 24005 normal 27006 normal 27007 normal 24008 normal 24009 normal 270010 normal 240011 normal 270012 normal 2400Fan-tray 2: Absent.# Display the detailed information of all fans on the switch in IRF mode. display fan chassis 1 verboseFan-tray verbose state on chassis 1:Fan-tray 1 is absent.Fan-tray 2:Software version: 102Hardware version: Ver.A
