
170 Troubleshooting the Pathlight VX
FC Switch—Back Panel LEDs
The FC switch back panel provides three status LEDs. Figure 29 shows their location and Table 24
describes their function.
Figure 29 FC Switch Back Panel LEDs
Table 24 FC Switch Back Panel LED Activity
LED Color State Description
Power/
Status
None OFF The FC switch is off or its boot process is not complete or
has failed. Verify that the FC switch is on and that it has
completed its boot process.
Green ON The FC switch is on.
Flashing
1x / sec
Diagnostic error messages have occurred. Check the port
status LEDs, port media, and cables.
Port
Status
None OFF No light or signal carrier (media or cable) is detected. Check
the media and cable.
Green ON Port is online (connected to external device), but it is
segmented,
Flashing
1x / sec
Port is online but segmented, indicating a loopback cable or
incompatible FC switch. Verify that the correct device is
connected to the port.
Flashing
1x / .25 sec
Port is in internal loopback (diagnostic).
Flickering Port is online, with traffic flowing through the port.
Amber ON Port is receiving light or signal carrier, but is not yet online.
Flashing
1x / sec
Port is disabled. Enable the port. Check the port
configuration.
Flashing
1x / .25 sec
Port is faulty. Check the port status LEDs, system status,
media and cable.
Green
Amber
Alternating green
and amber
Port is bypassed. Check configuration of the FC loop.
Port
Speed
Green OFF Port is transmitting / receiving at 1 Gbps.
ON Port is transmitting / receiving at 2 Gbps.
power/status LED
port status LED
port speed LED
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