CAUTION: Do not use the Reset button to restart the power sequence unless under
the direction of Juniper Networks Technical Assistance Center (JTAC).
Table 81 on page 506 describes the chassis status LEDs on a QFX5100 switch, their colors and states, and
the status they indicate. You can view the colors of the three LEDs remotely through the CLI by issuing
the operational mode command show chassis led.
Table 81: Chassis Status LEDs on a QFX5100 Switch
DescriptionStateColorName
The switch is halted or there is no
alarm.
OffUnlitALM–Alarm or beacon
A major hardware fault has occurred,
such as a temperature alarm or power
failure, and the switch has halted.
Power off the QFX5100 switch by
setting the AC power source outlet to
the OFF (O) position, or unplugging the
AC power cords. Correct any voltage
or site temperature issues, and allow
the switch to cool down. Power on the
QFX5100 switch and monitor the
power supply and fan LEDs to help
determine where the error is occurring.
On steadilyRed
A minor alarm has occurred, such as a
software error. Power off the
QFX5100 switch by setting the AC
power source outlet to the OFF (O)
position, or unplugging the AC power
cords. Power on the QFX5100 switch
and monitor the status LEDs to ensure
that Junos OS boots properly.
On steadilyAmber
506
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