Monitor the Device
5720 Series LEDs on page 87
The following topics help you monitor the status of the 5720 Series while it is operating.
5720 Series LEDs
ExtremeSwitching 5720 Series Front Panel LEDs, as described in the following table:
Table 20: 5720 Series Port LEDs
LED Color/State Port State
SYStem status LED
(Legacy MGMT function)
Green Flash slowly POST Passed,
normal operation, blinks on standalone switch,
stack primary, and backup nodes in a stack;
o for standby nodes in a stack
Green Blinking POST in progress
Amber Blinking POST failed or overheat
PSU status LEDs (P1/P2) Green Power On
O Power o and no power attached
Amber Blinking Power supply failures
Fan status LEDS (F1/F2/F3/F4) Green Normal operation
Amber Blinking Fan failure
Bluetooth Status LED (BT) Green Blinking Bluetooth pairing in progress
Green Bluetooth connected
Locator LED (LOC) Blue Blinking Locator function
The following figure shows the LEDs for 5720 Series switches, including the two alternate mode LEDs:
SPD and STK. You can use the Mode button to cycle through the three display modes for the port LEDs.
In the default mode, SPD and STK are o. SPD and STK display modes expire after 30 seconds, at which
time the port LEDs revert to the default SYS mode.
ExtremeSwitching 5720 Series Hardware Installation Guide
87
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