58
System status LED
(PWR/SYS) status Seven-segment LED (Unit) status
Description
Flashing red
The LED displays flashing numbers.
POST has failed, and the LED flashes the
ID of the failed test item.
Flashing green
A bar rotates clockwise around the LED.
Software is loading.
Steady red
The LED displays a flashing
F
character.
The switch is experiencing a fan failure.
Steady red
The LED displays a flashing
t
character.
The switch is in an over-temperature
condition.
Steady green
The LED displays a capital
C
character.
The switch is the command switch in a
cluster.
The LED displays an
S
character.
The switch is a member switch in a cluster.
The LED displays a lowercase
c
character.
The switch is a candidate switch for a
cluster.
The LED displays a number.
The member ID of the switch in an IRF
fabric.
Table 18
Seven-segment LED description (II)
Port mode LED
(Mode) status
System status LED
(PWR) status
Seven-segment LED (Unit)
status
Description
Flashing green
(1 Hz) (PoE
mode)
Steady green
The LED displays different signs.
0 - 20%
21 - 40%
41 - 60%
61 - 80%
81 - 100%
For example, the
sign
indicates that the switch is
outputting 0 to 20% of the
maximum PoE output power.
10/100/1000Base-T Ethernet port LED
Each 10/100/1000Base-T auto-sensing Ethernet port has a status LED to show port operating status and
activities. The port mode LED indicates the type of information (for example, port rate or duplex mode)
that the port LEDs are showing. You can use the port LED mode switching button to change the type of
displayed port information.