Extreme Networks ExtremeSwitching VDX 6740 Hardware Installation Manual page 103

TABLE 4 Non-port-side LED patterns during normal operation (continued)
LED name
Power supply status (one LED
[green] per power supply) (VDX
6740T)
Fan status (one bicolor LED [green
and amber] per fan assembly) (VDX
6740T)
ExtremeSwitching VDX 6740 Hardware Installation Guide
9036108-00
LED color
Blinking green
Off (no light)
Steady green
Blinking green
Off (no light)
Steady green
Steady amber (for more than 5
seconds)
Status of hardware
One of the following may have
occurred:
• Mismatched airflow on
power supply and fan
assembly.
• One or more of the fans
in the fan assembly has
failed or the power
supply has failed.
• The power cord has been
unplugged.
Power supply is not receiving power
or is off.
Power supply is operating normally.
Also, airflow mismatch or fault may
have been detected.
Power supply is faulty.
Fan assembly is not receiving
power.
Fan assembly is operating normally.
Fan fault for one of the following
reasons:
• Mismatched airflow on
fan assemblies.
• One or more of the fans
in the fan assembly has
failed.
• The fan assembly was
disabled by the user.
NOTE
When the device is first
powered on, the fan
status LED will show
amber until POST has
completed.
LED activity interpretation
Recommended action
Take one of the following actions:
• Replace power supply
and fan assembly with a
power supply and fan
assembly that has correct
airflow direction.
• Replace the power
supply and fan assembly.
• Check the power plug.
Verify the power supply is on and
seated and the power cord is
connected to a functioning power
source.
No action required.
Check messages or use the show
environment command to check
the state of the power supply.
Try the following:
• Check the power cable
connection.
• Verify that the power
supply is powered on.
• Replace the power
supply.
Try the following:
• Verify the fan assembly is
seated correctly.
• Verify the device is
powered on.
No action required.
Try the following:
• Verify that the airflow
symbol and part number
on the replacement fan
matches the fans in the
chassis. Replace if
necessary.
• Replace the fan
assembly.
• Verify the fan assembly is
enabled (use the show
environment fan
command). Re-enable if
necessary.
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