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QFX Series Alarm Messages Overview
When a QFX Series switch detects an alarm condion, it lights the red or yellow alarm LED on the
management panel as appropriate. To view a more detailed descripon of the alarm cause, issue the
show chassis alarms CLI command:
user@host> show chassis alarms
6 alarms currently active
Alarm time Class Description
2018-02-07 12:12:18 PST Major FPC Management1 Ethernet Link Down
2018-02-07 12:11:54 PST Minor FPC0: LED 3:Alarm LED Read Error
2018-02-07 12:11:54 PST Minor FPC0: LED 3:Alarm LED Write Error
2018-02-07 12:11:54 PST Major FPC0: PEM 1 Not Supported
2018-02-07 12:11:54 PST Major FPC0: PEM 0 Not Supported
2018-02-07 12:11:54 PST Major FPC0: PEM 0 Not Powered
For Junos OS Evolved systems, show system alarms CLI command indicates major and minor alarms on the
system. In this example from a Junos OS Evolved system, a fan tray error is shown in slot 4.
user@host> show system alarms
2 alarms currently active
Alarm time Class Description
2018-11-15 11:52:22 PST Major Fan Tray 4 Failure <<<<<
2018-11-15 10:40:08 PST Minor Host 0 Disk 2 Labelled incorrectly
Chassis Alarm Messages
Chassis alarms indicate a failure on the device or one of its components. Chassis alarms are preset and
cannot be modied.
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