Troubleshooting The Ex4300 Components; Understand Alarm Types And Severity Levels On Ex Series Switches - Juniper EX4300 Series Hardware Manual

Troubleshooting the EX4300 Components

IN THIS SECTION

Understand Alarm Types and Severity Levels on EX Series Switches | 320

Chassis Component Alarm Conditions on EX4300 Switches | 322
Check Active Alarms with the J-Web Interface | 325
Monitor System Log Messages | 326
Troubleshooting PoE Voltage Injection Failure in EX2300, EX3400, or EX4300 Switch Models with PoE
Capability | 333
Troubleshoot Temperature Alarms in EX Series Switches | 334
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 89 on page 320.
Table 89: Alarm Terms
Term
alarm
alarm condition
alarm severity
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.
320