NOTE: Fibre Channel alarms are valid only on QFX3500 devices.
NOTE: When red alarms or major alarms are issued on QFX5100 and EX4600 switches, the
alarm LED glows amber instead of red.
By default, major alarms are configured for interface link-down conditions on the control plane and
management network interfaces in a QFabric system. The link-down alarms indicate that connectivity to
the control plane network is down. You can configure these alarms to be ignored using the alarm statement
at the [edit chassis] hierarchy level.
NOTE: If you configure a yellow alarm on the QFX3008-I Interconnect device, it will be handled
as a red alarm.
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 135 on page 637.
Table 135: 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 or amber, this indicates a minor alarm. If the Alarm LED is unlit, there
is no alarm or the switch is halted.
alarm severity
637
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