101
System status LED
(SYS) status
Seven-segment LED (Unit) status
Description
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 (the
character
A
represents 10).
Table 28
Seven-segment LED description (II)
Port mode LED
(Mode) status
System status LED
(SYS) status
Seven-segment LED
(Unit) status
Description
Flashing green (1
Hz) (PoE mode)
Steady green
The LED displays
different signs.
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 port status 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.
Table 29
10/100/1000Base-T auto-sensing Ethernet port LED description
Port mode LED
(Mode) status
Port LED status
Description
Steady green
(rate mode)
Steady green
The port is operating at 1000 Mbps. The port LED fast flashes
when the port is sending or receiving data.
Steady yellow
The port is operating at 10/100 Mbps. The port LED fast
flashes when the port is sending or receiving data.
Flashing yellow (3 Hz)
POST has failed on the port.
Off
No link is present on the port.
0 - 20%
21 - 40%
41 - 60%
61 - 80%
81 - 100%