Understand Alarm Types And Severity Levels On Ex Series Switches - Juniper EX9253 Hardware Manual

Understand Alarm Types and Severity Levels on EX Series Switches

NOTE: This topic applies only to the J-Web Application package.
Alarms alert you to conditions that might prevent normal operation of the switch. Before monitoring
alarms on a Juniper Networks EX Series Ethernet switch, become familiar with the terms defined in
Table 37 on page 171.
Table 37: Alarm Terms
Term
alarm
alarm condition
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.
Definition
Signal alerting you to conditions that might prevent normal operation. On a switch, the
alarm signal is the ALM LED lit on the front of the chassis.
Failure event that triggers an alarm.
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.
171