Extreme Networks ExtremeSwitching VDX 6740 - Page 103

TABLE 4 Non-port-side LED patterns during normal operation (continued)
LED name LED color Status of hardware Recommended action
Blinking green One of the following may have
occurred:
• Mismatched airow 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.
Take one of the following actions:
• Replace power supply
and fan assembly with a
power supply and fan
assembly that has correct
airow direction.
• Replace the power
supply and fan assembly.
• Check the power plug.
Power supply status (one LED
[green] per power supply) (VDX
6740T)
O (no light) Power supply is not receiving power
or is o.
Verify the power supply is on and
seated and the power cord is
connected to a functioning power
source.
Steady green Power supply is operating normally.
Also, airow mismatch or fault may
have been detected.
No action required.
Check messages or use the show
environment command to check
the state of the power supply.
Blinking green Power supply is faulty. Try the following:
• Check the power cable
connection.
• Verify that the power
supply is powered on.
• Replace the power
supply.
Fan status (one bicolor LED [green
and amber] per fan assembly) (VDX
6740T)
O (no light) Fan assembly is not receiving
power.
Try the following:
• Verify the fan assembly is
seated correctly.
• Verify the device is
powered on.
Steady green Fan assembly is operating normally. No action required.
Steady amber (for more than 5
seconds)
Fan fault for one of the following
reasons:
• Mismatched airow 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 rst
powered on, the fan
status LED will show
amber until POST has
completed.
Try the following:
• Verify that the airow
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.
LED activity interpretation
ExtremeSwitching VDX 6740 Hardware Installation Guide
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