Show Active Alarms Command

B

The command used to show active alarms on a Juniper Networks device running the Junos operating system is "show system alarms".

Option A, "show hardware state", is not a valid command in Junos and does not provide information about active alarms.

Option C, "show chassis state", displays the status of various hardware components on the device, but it does not provide information about active alarms.

Option D, "show services alarms", is also not a valid command in Junos and does not provide information about active alarms.

The "show system alarms" command displays information about any active alarms on the device, including the severity level, description of the alarm, and any additional information or suggested actions for resolving the issue.

Here is an example output of the "show system alarms" command:

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user@router> show system alarms 1 alarms currently active Alarm time               Class  Description 2023-03-10 09:30:05 UTC  Minor  FPC 1 PE chip is not online 

In this example, there is one active alarm on the device, which is classified as "Minor" and is related to the FPC (Flexible PIC Concentrator) hardware component on slot 1. The alarm indicates that the PE (Packet Engine) chip is not online, which could impact the performance of the device. Further investigation and troubleshooting may be required to resolve this issue.