Monitoring the Device
5420 Series Switch LEDs on page 91
The following topics help you monitor the status of the switch/appliance as it is
running.
5420 Series Switch LEDs
ExtremeSwitching 5420 Series front panel port LEDs, as described in the following
table:
Table 19: 5420 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;
off 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
Off Power off and no power
attached
Amber Blinking Power supply failures
Speed status (SPD), Stacking
status (STK)
SPD solid green Speed mode
STK solid green Stacking mode
All off Normal mode
Fan status for 5420F Green Normal operation
Amber Blinking Fan failure
Fan module status for 5420M Green Normal operation
Amber Blinking Fan module failure
Off Fan module not present
ExtremeSwitching 5420 Series Hardware Installation Guide 91
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