Understanding Alarm Types and Severity Levels on EX Series Switches
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 1.
Table 1: Alarm Terms
Signal alerting you to conditions that might prevent normal
operation. On a switch, the alarm signal is the
Failure event that triggers an alarm.
Seriousness of the alarm. If the Alarm (
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.
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 alarm condition requires monitoring or maintenance.
A missing rescue configuration generates a yellow system alarm.