| Component |
Alarm Condition |
Remedy |
Severity |
Additional Information |
Fan tray
|
The fan tray has been removed from the chassis.
|
Install the fan tray.
|
Yellow/Red
|
The switch will eventually get too hot to operate if
a fan tray is removed. Temperature alarms will follow.
This alarm is expected during fan tray removal and installation.
|
Fan tray
|
One or more fans in a fan tray is spinning below the
required speed.
|
Replace the fan tray.
|
Red
|
Individual fans cannot be replaced; you must replace
the fan tray.
|
Fan tray
|
The fan tray’s internal connection to the switch
is not functioning properly.
|
Remove and reinsert the fan tray.
If removing and reinserting the fan tray does not resolve the
problem, reboot the switch.
|
Red
|
The switch will eventually get too hot to operate if
a fan tray is not operating. Temperature alarms will follow.
|
Power supply
|
A power supply slot that contained a power supply at
bootup is now empty.
|
Install a power supply in the empty power supply slot.
|
Yellow
|
You can ignore this alarm in cases in which a power supply
slot can remain empty.
You will not see this alarm if the switch is booted with an
empty power supply slot.
This alarm is expected during power supply removal and installation.
This alarm can be triggered by a line card insertion. The alarm
condition corrects itself when seen for this reason.
|
Power supply
|
A power supply has failed due to an input or output failure,
or due to temperature issues.
|
Replace the failed power supply.
|
Red
|
|
Power supply
|
A power supply’s internal connection to the switch
is not operating properly.
|
Remove and reinsert the power supply.
If removing and reinserting the power supply does not resolve
the problem, reboot the switch.
|
Red
|
|
Temperature
|
The chassis warm temperature threshold has been exceeded
and fan speeds have increased.
|
Adjust room temperature downward, if possible.
Ensure airflow through the switch is unobstructed.
|
Yellow
|
The chassis is warm and should be cooled down. The switch
is still functioning normally.
To monitor temperature:
user@switch>show chassis environment
To monitor temperature thresholds:
user@switch>show chassis temperature-thresholds
|
Temperature
|
The chassis high temperature threshold has been exceeded
and the fans are operating at full speed.
|
Adjust room temperature downward, if possible.
Ensure airflow through the switch is unobstructed.
|
Red
|
The chassis is hot and should be cooled down. The switch
might still function normally but is close to shutting down if it
hasn’t already.
To monitor temperature:
user@switch>show chassis environment
To monitor temperature thresholds:
user@switch>show chassis temperature-thresholds
|
Temperature
|
The chassis warm temperature threshold has been exceeded,
and one or more fans are not operating properly. The operating fans
are running at full speed.
|
Replace the fan tray that has the faulty fan or fans.
Adjust room temperature downward, if possible.
Ensure airflow through the switch is unobstructed.
|
Yellow
|
The chassis is warm and should be cooled down. The switch
is still functioning normally.
To monitor temperature: user@switch>show chassis environment
To monitor temperature thresholds: user@switch>show chassis temperature-thresholds
|
Temperature
|
The chassis high temperature threshold has been exceeded,
and one or more fans is not operating properly. The operating fans
are running at full speed.
|
Replace the fan tray that has the faulty fan or fans.
Adjust room temperature downward, if possible.
Ensure airflow through the switch is unobstructed.
|
Red
|
The chassis is hot and should be cooled down. The switch
might still function normally but is close to shutting down if it
hasn’t already.
To monitor temperature:
user@switch>show chassis environment
To monitor temperature thresholds:
user@switch>show chassis temperature-thresholds
|
Temperature
|
The temperature sensor on a hardware component has failed.
|
Replace the hardware component.
|
Yellow
|
|
Routing Engine (RE), Switch Fabric and Routing Engine
(SRE), or Switch Fabric (SF) module
|
The RE, SRE, or SF module has failed.
|
The RE, SRE, or SF module must be replaced.
|
Red
|
|
Link Status
|
The link to the network is down.
|
Check network connectivity.
|
Red or Yellow
|
The network link is disabled by default, so you might
see this alarm before you connect the switch to the network.
|
