Status Indicators
A.1 Front Indicators
A.1.1 Switch Indicators
Front panel LEDs are located on the right side of the chassis and display system, fan, and power supply status. The front panel LEDs are labeled either as in Figure A-1 or as in Figure A-2. Check your device for the specific method utilized.
Figure A-1: System Status Indicators
 
1
System status LED
3
Power supply 1 status LED
2
Fan status LED
4
Power supply 2 status LED
Figure A-2: System Status Indicators
 
1
System status LED
3
Power supply 1 status LED
   
2
Fan status LED
4
Power supply 2 status LED
   
 
Table A-1 Switch Indicators LED States (Front)
LED Name
LED State
Device Status
System Status LED
Blinking Green
System is powering up.
Green
Normal operations. Due to power supply and fan redundancy, this LED will remain green if a single fan or power supply is missing or in a failed state.
Blue
The locater function is active.
Amber
Two or more fans (any combination of fan modules or PSU fans) are disconnected or malfunctioning. The switch will automatically execute a “graceful shutdown” shortly.
Fan Status LED
Green
All fan and power modules are operating normally.
Amber
Single fan module is removed or malfunctioning. It is also amber when a PSU is completely removed or has a stuck fan rotor.
Red
Two or more fans (any combination of fan modules or PSU fans) are disconnected or malfunctioning. The switch will automatically execute a “graceful shutdown” shortly.
PSU [1:2] Status LED
Green
PSU is functioning and fully operational. AC is present, Aux output is ON, and Main output is ON.
Off
PSU has been removed or is not operating properly due to AC cord being unplugged, its fan rotor being stuck, or an internal fault.
A.1.2 Port Indicators
Port LEDs, located in the vicinity of their corresponding ports, provide link and operational status. Figure A-3 displays the Port LED location on the DCS-7050QX-32S switch.
Figure A-3: Port LEDs
 
1
Port 1 LEDs
3
Port 3 LEDs
   
2
Port 2 LEDs
4
Port 4 LEDs
   
Table A-2 provides status conditions that correspond to port LED states. Port LED behavior for QSFP+ and SFP+ ports is consistent.
Table A-2 Port LED States (Front)
LED State
Status
Off
Port link is down.
Green
Port link is up.
Yellow
Port is software disabled.
Flashing Yellow
Port failed diagnostics.
A.2 Rear Status Indicators
Fan and power supply modules are accessed from the rear panel. Each fan and power supply module contains an LED that reports the module status.
Fan module status LEDs are on the fan modules, as displayed in Figure A-4.
Figure A-4: Fan Status LED
 
1
Fan module status LED
       
Table A-3 provides status conditions that correspond to fan module status LED states.
 
Table A-3 Fan Status LED States (Rear)
LED State
Status
Off
The fan module is not detected. If it is inserted, it may not be seated properly.
Green
The fan is operating normally. This LED state is exclusive to its fan module, and independent of the states of its neighboring fans and power supplies.
Red
The fan has failed.
The AC Power Supply Status LEDs are on the power supply modules, as displayed in Figure A-5.
Figure A-5: AC Power Supply Status LED
 
1
Power supply status LED
       
 
Table A-4 provides status conditions that correspond to the AC power supply status LED states.
Table A-4 AC Power Supply Status LED States (Rear)
Power Supply State
PWR-500AC-F
PWR-500AC-R
Input power present
Normal operation
Green
Input power present
Power Supply fault
Yellow
No Input power Supply installed in chassis
Off
Input power present Supply not installed in chassis
Green
The DC Power Supply Status LEDs are on the power supply modules, as displayed in Figure A-6.
Figure A-6: DC Power Supply Status LED
 
1
Power supply status LED
3
Battery Return
   
2
-48V
4
Protective Earth
   
Table A-5 provides status conditions that correspond to the DC power supply status LED states.
Table A-5 DC Power Supply Status LED States (Rear)
Power Supply State
PWR-500-DC-F
PWR-500-DC-R
Input power present
Normal operation
Green
Input power present
Power Supply fault
Blinking Yellow
No Input power
Supply installed in chassis
Off
Input power present Supply not installed in chassis
Blinking Yellow
Note You can narrow down the error condition by logging in to the switch to view the specific device state. Refer to the Arista User Manual’s Switch Environment Control chapter, under the topic Viewing Environment Status, for further information on the show environment commands.