Status Indicators

The following topics are covered in this section:

Front Indicators

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 1 or as in Figure 2. Check your device for the specific method utilized.

Figure 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 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 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.

 

Port Indicators

Port LEDs, located in the vicinity of their corresponding ports, provide link and operational status. Figure 3 displays the Port LED location on the DCS-7050QX-32S switch.

Figure 3. Port LEDs

 
1 Port 1 LEDs 3 Port 3 LEDs
2 Port 2 LEDs 4 Port 4 LEDs

 

Table 2 provides status conditions that correspond to port LED states. Port LED behavior for QSFP+ and SFP+ ports is consistent.

Table 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.

 

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 4.

Figure 4. Fan Status LED

 
1 Fan module status LED

 

Table 3 provides status conditions that correspond to fan module status LED states.

Table 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 5.

Figure 5. AC Power Supply Status LED

 
1 Power supply status LED

 

Table 4 provides status conditions that correspond to the AC power supply status LED states.

Table 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 6.

Figure 6. DC Power Supply Status LED

 
1 Power supply status LED 3 Battery Return
2 -48V 4 Protective Earth

 

Table 5 provides status conditions that correspond to the DC power supply status LED states.

Table 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.