6-1
6
Appendix B LEDs
LEDs
Figure6-1 LEDs
(1) 100/1000MBASE-T autosensing port LEDs
(2) 10GBASE-R-SFP+ autosensing port LEDs
(3) 2.5G/1000BASE-T autosensing port LED
(4) System status LED (SYS)
LED description
Table6-1 LED description
LED
Mark
Status
Description
System status LED
SYS
Flashing green (4
Hz)
The system is starting up.
Flashing green (0.5
Hz)
The system is operating correctly.
Steady red
A critical alarm has occurred, such as a power
supply alarm, fan tray alarm, high
temperature alarm, or software missing
alarm.
Off
The device has not started up.
100/1000BASE-T
autosensing port
LEDs
N/A
Steady green
A 1000 Mbps link is present on the port.
Flashing green
The port is receiving or transmitting data at
1000 Mbps.
Steady yellow
A 100 Mbps link is present on the port.
Flashing yellow
The port is receiving or transmitting data at
100 Mbps.
Off
No link is present on the port.
10GBASE-R- SFP+
autosensing port
N/A
Steady green
A 10 Gbps link is present on the port.