Juniper EX2300 Series Hardware Manual page 241

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Table 56: Alarm Terms
Term
alarm severity
chassis alarm
system alarm
Alarm Types
The switch supports these alarms:
• Chassis alarms indicate a failure on the switch or one of its components. Chassis alarms are preset
and cannot be modified.
• System alarms indicate a missing rescue configuration. System alarms are preset and cannot be
modified, although you can configure them to appear automatically in the J-Web interface display or
the CLI display.
Alarm Severity Levels
Alarms on switches have two severity levels:
• Major (red)—Indicates a critical situation on the switch that has resulted from one of the following
conditions. A red alarm condition requires immediate action.
• One or more hardware components have failed.
• One or more hardware components have exceeded temperature thresholds.
• An alarm condition configured on an interface has triggered a critical warning.
• Minor (yellow or amber)—Indicates a noncritical condition on the switch that, if left unchecked, might
cause an interruption in service or degradation in performance. A yellow or amber alarm condition
requires monitoring or maintenance.
A missing rescue configuration generates a yellow or amber system alarm.
Definition
Seriousness of the alarm. If the Alarm (ALM) LED is red, this indicates a major alarm. If
the Alarm LED is yellow or amber, this indicates a minor alarm. If the Alarm LED is unlit,
there is no alarm or the switch is halted.
Preset alarm triggered by a physical condition on the switch such as a power supply
failure, excessive component temperature, or media failure.
Preset alarm triggered by a missing rescue configuration or failure to install a license for
a licensed software feature.
NOTE: On EX6200 switches, a system alarm can be triggered by an internal link error.
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