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. Appendix C displays the front panels of all switches covered by this guide.
Figure A-1 displays the CCS-720XP-96ZC2 front panel LEDs.
Figure A-1: System Status Indicators
 
1
System status LED
       
2
Fan status LED
       
3
PSU status LED
       
Table A-1 Switch Indicators LED States
LED Name
LED State
Device Status
System Status
Blinking Green
System powering up.
Green
All power supplies and fans are operating normally.
Blue
The locator function is active.
Red
A power supply or fan is missing or in a failed state.
Fan Status
Green
All fans are operating normally.
Red
One or more fans are not inserted or have failed.
Power Supply Status
Off
Power supply is not inserted or is not powered.
Green
Power supply operating normally.
Red
Power supply has failed.
A.1.2 Port Indicators
Port LEDs, located in the vicinity of their corresponding ports, provide link and operational status. Figure A-2 displays the Port LED location on the CCS-720XP-96ZC2 switch. Appendix C displays the port LED locations of all switches covered by this guide.
Figure A-2: Port LEDs
Table A-2 provides status conditions that correspond to port LED states. Port LED behavior for QSFP+ and SFP+ ports is consistent.
 
1
Port status LED (upper port)
3
Port status LED (upper port)
   
2
Port status LED (lower port)
4
Port status LED (lower port)
   
 
Table A-2 Port LED States
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. Appendix D displays the rear panel of all switches covered by this guide.
Fan Status LEDs are on the fan modules, as displayed in Figure A-3.
Figure A-3: Fan Status LED
 
1
Release
       
2
Fan module status LED
       
Note Bezel color indicates airflow direction.
The module installation indicator is green when the fan module is properly installed or red when the module is not fully installed. Table A-3 provides status conditions that correspond to fan status LED states.
 
Table A-3 Fan Status LED States
LED State
Status
Off
The fan module is inserted but not receiving power – it may not be properly seated.
Green
The fan is operating normally.
Red
The fan has failed.
The Power Supply Status LEDs are on the power supply modules, as displayed in Figure A-4.
Figure A-4: AC Power Supply Status LED
 
1
PSU module status LED
       
Table A-4 provides status conditions that correspond to power supply status LED states.
Table A-4 AC Power Supply Status LED States
Power Supply State
PWR-1021-AC-RED
Input power present
Normal operation
Green
Input power present
Power Supply fault
ON/OFF: ON when PSU output is ON, OFF when PSU Output is OFF
Input power present
Power Supply FAN fault
FLASH 800 ms ON / 800 ms OFF
No Input power
Supply installed in chassis
OFF
Input power present
Supply not installed in chassis
Green
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.