8-7
Table8-16 System status LED description
LED mark Status
Description
SYS
Steady green
The switch is operating correctly.
Flashing green
The switch is performing power-on self test (POST).
Steady red
The system has failed POST, or a fault has occurred.
Flashing red
Some ports have failed POST.
Flashing blue (3 Hz)
Helps you to locate the device.
To locate the device, execute the
locator blink
command on
the device. Then the SYS LED will be in this state.
Off
The switch is powered off or has failed to start up.
SFP+ port LED
Each SFP+ port has a status LED to show its operating status and activities.
Table8-17 SFP+ port LED description
LED status
Description
Steady green
A transceiver module or cable has been correctly installed. The port has a link
and is operating at 10 Gbps.
Flashing green
The port is sending or receiving data at 10 Gbps.
Steady yellow
A transceiver module or cable has been correctly installed. The port has a link
and is operating at 1 Gbps.
Flashing yellow (3 Hz)
The port is sending or receiving data at 1 Gbps.
Off
No transceiver module or cable has been installed or no link is present on the
port.
QSFP28 port LED
Each QSFP28 port has a status LED to show its operating status and activities.
Table8-18 QSFP28 port LED description
LED status
Description
Steady green
A transceiver module or cable has been correctly installed. The port has a link
and is operating at 100 Gbps.
Flashing green
The port is sending or receiving data at 100 Gbps.
Steady yellow
A transceiver module or cable has been correctly installed. The port has a link
and is operating at 40 Gbps.
Flashing yellow (3 Hz)
The port is sending or receiving data at 40 Gbps.
Off
No transceiver module or cable has been installed or no link is present on the
port.
