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Table 3. 16–port card LED patterns (continued)
Name of LED
Location of LED Color of LED
Port Status and
To the left of
Activity
each port, below
the Port Speed
LED
No light (LED is off)
Steady green
Slow-flashing green (on
1 second; off 1 second)
Fast-flashing green (on
1/4 second; off 1/4
second)
Flickering green
Steady yellow
Slow-flashing yellow
Fast-flashing yellow (on
1/2 second; off 1/2
second)
Alternating green and
yellow
Status of hardware
Action
Verify that the Power LED
v Either the 16–port
is lit and check the
card does not have
transceiver and the cable.
incoming power or
there is no light or
signal carrier
detected.
v Polling is in
progress.
v The connected
device is configured
in an offline state.
The port is online
No action is required.
(connected to an
external device) but
has no traffic.
The port is online but
Verify that the correct
segmented, indicating
device is connected to the
a loopback plug or
port.
cable, or an
incompatible switch.
The port is in internal
No action is required.
loopback (diagnostic).
The port is online, with
No action is required.
traffic flowing through
the port.
The port is receiving
No action is required.
light or signal carrier,
but is not yet online.
The port is disabled
Reset the port from the
(from diagnostic tests
workstation.
or the portDisable
command).
The SFP or the port is
Change the SFP or reset
faulty.
the switch from workstation
The port is bypassed.
Reset the port from the
workstation.
Chapter 3. Operating the M12
23
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