Juniper EX Series User Manual

Understanding 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 22 on page 30.
Table 22: Alarm Terms
DefinitionTerm
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.
alarm
Failure event that triggers an alarm.alarm condition
Seriousness of the alarm. If the Alarm (ALM) LED is red, this indicates a major alarm. If the Alarm
LED is yellow, this indicates a minor alarm. If the Alarm LED is unlit, there is no alarm or the switch
is halted.
alarm severity
Preset alarm triggered by a physical condition on the switch such as a power supply failure,
excessive component temperature, or media failure.
chassis alarm
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.
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.
Copyright © 2017, Juniper Networks, Inc.30
J-Web Application Package User Guide for EX Series Switches, Release 14.1X53-A1

Juniper EX Series Specifications

General

Brand	Juniper
Model	EX Series
Category	Switch
Language	English