Supported Platforms
Related Documentation
- ACX, EX, J, M, MX, PTX, T Series, QFabric System, QFX Series standalone switches
- show chassis alarms
show system alarms
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
Command introduced in Junos OS Release 9.0 for EX Series switches.
Command introduced in Junos OS Release 11.1 for the QFX Series.
Description
Display active system alarms.
Options
This command has no options.
Additional Information
System alarms are preset. They include a configuration alarm that appears when no rescue configuration alarm is set and a license alarm that appears when a software feature is configured and no valid license is configured for the feature. On EX6200 switches, an alarm can be triggered by an internal link error. For more information about system alarms, see the Junos OS Administration Library for Routing Devices.
In Junos OS release 11.1 and later, alarms for fans also show the slot number of the malfunctioning fans in the CLI output.
Starting with Junos OS Release 13.2, you can view degraded fabric alarms on a routing matrix based on TX Matrix Plus router with 3D SIBs. The alarm indicates that the source FPC is running with a degraded fabric condition. This alarm is an early warning of a possible fabric black-hole condition. When the degraded fabric alarm is raised on the source FPC, you can take remedial action to avoid a fabric black-hole condition. The degraded fabric alarm is raised on the source FPC if both the following conditions are met:
- The active Packet Forwarding Engine destinations are reachable on one or no active switching planes.
- At least one of the inactive switching planes has a fault that causes the destination Packet Forwarding Engine to become unreachable.
Required Privilege Level
view
Related Documentation
- ACX, EX, J, M, MX, PTX, T Series, QFabric System, QFX Series standalone switches
- show chassis alarms
List of Sample Output
show system alarmsshow system alarms (Fan Tray)
show system alarms (QFX Series)
show system alarms (EX6200)
show system alarms (TX Matrix Plus router with 3D SIBs)
Output Fields
Table 1 lists the output fields for the show system alarms command. Output fields are listed in the approximate order in which they appear.
Table 1: show system alarms Output Fields
Field Name | Field Description |
|---|---|
Alarm time | Date and time the alarm was first recorded. |
Class | Severity class for this alarm: Minor or Major. |
Description | Information about the alarm. |
Sample Output
show system alarms
user@host> show system alarms
2 alarms currently active Alarm time Class Description 2005-02-24 17:29:34 UTC Minor IPsec VPN tunneling usage requires a license 2005-02-24 17:29:34 UTC Minor Rescue configuration is not sent
show system alarms (Fan Tray)
user@host> show system alarms
4 alarms currently active Alarm time Class Description 2010-11-11 20:27:38 UTC Major Side Fan Tray 7 Failure 2010-11-11 20:27:13 UTC Minor Side Fan Tray 7 Overspeed 2010-11-11 20:27:13 UTC Major Side Fan Tray 5 Failure 2010-11-11 20:27:13 UTC Major Side Fan Tray 0 Failure
show system alarms (QFX Series)
user@switch> show system alarms 2 alarms currently active Alarm time Class Description 2005-02-24 17:29:34 UTC Minor Rescue configuration is not sent
show system alarms (EX6200)
user@switch> show system alarms2 alarms currently active Alarm time Class Description 2013-04-05 16:51:41 PDT Major FPC 8 internal link errors detected 2013-04-04 18:05:35 PDT Minor Rescue configuration is not set
show system alarms (TX Matrix Plus router with 3D SIBs)
user@router> show system alarms sfc0-re0: -------------------------------------------------------------------------- 2 alarms currently active Alarm time Class Description 2013-05-08 18:13:58 UTC Major LCC 0 Major Errors 2013-05-08 17:48:46 UTC Major LCC 7 Major Errors lcc0-re1: -------------------------------------------------------------------------- 1 alarm currently active Alarm time Class Description 2013-05-08 18:19:24 UTC Major FPC 1 degraded fabric condition detected lcc7-re0: -------------------------------------------------------------------------- 1 alarm currently active Alarm time Class Description 2013-05-08 18:19:24 UTC Major FPC 7 degraded fabric condition detected
Modified: 2015-06-26
Supported Platforms
Related Documentation
- ACX, EX, J, M, MX, PTX, T Series, QFabric System, QFX Series standalone switches
- show chassis alarms
