Installation and Reference Guide
3-3
Operating the Switch
3
The following table describes the port status LEDs located above each port on the left.
The following table describes the port speed LEDs located above each port on the right.
Color of LED
Status of Hardware
Recommended Action
No light
No light or signal carrier (media or
cable) is detected.
Verify that media and cable are both
firmly seated and functional.
Steady green
Port is online (connected to an external
device) but has no traffic.
No action required.
Slow-flashing
green (on 1
second; off 1
second)
Port is online but segmented,
indicating a loopback cable or
incompatible switch.
Verify correct device is connected to
port.
Fast-flashing
green (on 1/4
second; off 1/4
second)
The port is in internal loopback
(diagnostic).
No action required.
Flickering green
Port is online, with traffic flowing
through port.
No action required.
Steady orange
Port is receiving light or signal carrier,
but is not yet online.
No action required.
Slow-flashing
orange (on 1
second; off 1
second)
The port is disabled
(result of diagnostics or portDisable
command).
Reset the port from a management
station.
Fast-flashing
orange (on 1/4
second; off 1/4
second)
The port is faulty.
Reset the switch from a management
station.
Alternating green
and yellow
Port is bypassed.
Reset the port from a management
station.
Color of LED
Status of Hardware
Recommended Action
No light
The port is transmitting/receiving at
1 Gbps.
No action required.
Steady green
The port is transmitting/receiving at
2 Gbps.
No action required.
No light
The port is transmitting/receiving at
10 Mbps.
No action required.
Steady green
The port is transmitting/receiving at
100 Mbps.
No action required.
No light
No Ethernet traffic is flowing through
the RJ-45 port.
Verify that the switch has power and
the Ethernet cable is firmly seated.
Steady green
Ethernet traffic is flowing through the
RJ-45 port.
No action required.