Mode LED
(MODE) status
Ethernet port LED
status
Description
(PoE mode)
Flashing green (1 Hz)
•
The maximum PoE power provided by the port does
not meet the power requirement of the PD.
•
PoE power supply overcurrent, overvoltage, or
short-circuit has occurred.
•
The remaining power of the switch does not meet the
power supply requirement of the port.
Off
The port is not connected to a PD or PoE is not enabled on
the port.
Flashing yellow
(IRF mode)
Steady green
The autosensing Ethernet port LEDs on the switch work in
conjunction to indicate the IRF member ID of the switch.
For example, if the LEDs for ports 1 to 4 are steady green
and the other port LEDs are off, the IRF member ID of the
switch is 4.
SFP port LED (S5570S-36F-EI switch)
Table4-20 SFP port LED description
Mode LED
(MODE) status
SFP port LED status Description
Steady green
(Link/Active mode)
Steady green
A transceiver module or cable has been installed and a
link is present on the port.
Flashing green
The port is sending or receiving data.
Off
No transceiver module or cable has been installed or no
link is present on the port.
Flashing yellow
(IRF mode)
Steady green
The SFP port LEDs on the switch work in conjunction to
indicate the IRF member ID of the switch. For example, if
the LEDs for ports 1 to 4 are steady green and the other
port LEDs are off, the IRF member ID of the switch is 4.
SFP/SFP+ port LED
Table4-21 SFP/SFP+ port LED description
SFP/SFP+ port LED status
Description
Steady green
A transceiver module or cable has been installed and a link is present on
the port.
Flashing green
The port is sending or receiving data.
Off
•
No transceiver module or cable has been installed or no link is
present on the port.
•
The mode LED is operating in IRF mode (available only for switches
that support the mode button).
•
The mode LED is operating in PoE mode (available only for PoE
switches).
