Table 132: Chassis Alarm Messages (continued)
Recommended ActionCLI MessageAlarm TypeComponent
Replace the power supply with a
power supply that supports the same
airflow direction as supported by the
chassis.
PEM pem-number Airflow not
matching Chassis Airflow
Major (red)Power supplies
Check the system log for one of the
following error messages and report
the message to customer support:
•
I2C Read failed for device number,
where number where number
ranges from 123 through 125.
•
PS number: Transitioning from
online to offline, where power
supply number is 1 or 2.
PEM pem-number I2C Failure
Check the power cord connection and
reconnect, if necessary.
PEM pem-number is not powered
Replace the power supply with a
supported power supply.
PEM pem-number is not supported
Indicates a problem with the incoming
AC power or outgoing DC power.
Report the error to customer support.
PEM pem-number Not OK
Reboot the switch after removing one
of the power supply. The switch can
continue to operate with a single
power supply.
OR
Replace the removed power supply
and reboot the switch.
PEM pem-number AbsentMinor (yellow)
Check whether there is a mix of AC
and DC power supplies in the same
chassis. Reboot the switch with only
AC or only DC power supplies.
PEM pem-number Power Supply Type
Mismatch
PEM pem-number Removed
626
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