
19
(1) Network management ports
(2) Switch fabric module status LED (SFC)
(3) Fan tray status LED (FAN)
(4) MPU active/standby status LED (ACTIVE)
(5) Reset button
(6) MPU status LED (RUN/ALM)
(7) Power supply status LED (PWR)
(8) Service module status LED (LC)
(9) USB port
(10) SFP management Ethernet port LED
(11) 10/100/1000BASE-T management Ethernet port
LED
(12) Console port
Table 18 LED description
LED
Status
Description
Management Ethernet
port LED
Flashing
The port is in sending or receiving data.
On
A link is present on the port.
Off
No link is present on the port.
Fan tray status LEDs
Steady green
All fan trays are present and operating correctly.
Steady red
A fan tray is faulty, or no or only one fan tray is
operating correctly.
Off
The switch has not been powered on.
Power supply status LED
Steady green
All present power supplies are operating correctly.
Steady red
One or more power supplies are faulty.
Off
The switch has not been powered on.
Service module status
LED
Flashing green (once per
two seconds)
All present service modules are operating correctly.
Steady red
•
One or more service modules are starting up or
loading software.
•
One or more service modules are faulty, or a
high severity alarm has occurred on one or
more service modules.
•
The temperature of a service module has
exceeded the upper warning threshold or fell
below the lower warning threshold.
Off
No service module is present.
MPU status LED
Flashing green (once per
two seconds)
The MPU is operating correctly.
Flashing green (four
times per second)
The MPU is loading software.
Steady green
The MPU is starting up.
Steady red
A high severity alarm has occurred on the MPU, or
1
5
6
7
8
9
10
11
12
2
3
4