Monitor and troubleshoot
Documents under this category describe tools that can help you monitor, diagnose, and troubleshoot SR Linux software. This section also includes Log Event documentation to help you interpret log messages generated by SR Linux software.
- Event Handler Guide
  This document describes the functionality and configuration for the event handler framework on the Nokia Service Router Linux (SR Linux).
- Log Events Guide
  This document provides guidance for operators to interpret log events for the Nokia Service Router Linux (SR Linux).
- OAM and Diagnostics Guide
- Troubleshooting Toolkit
  This document describes how to use and configure diagnostic tools for the Nokia Service Router Linux (SR Linux).

license

licenseExpired

Table 1. licenseExpired properties
Property name	Value
Application name	license
Event name	licenseExpired
Default severity	warning
Message format string	License license_name expired at expired_at_date_time, current time: current_date_time
Cause	The license specified has expired.
Effect	If no new license is provided, the system becomes unlicensed.

licenseExpirySoon

Table 2. licenseExpirySoon properties
Property name	Value
Application name	license
Event name	licenseExpirySoon
Default severity	warning
Message format string	License license_name expires at expires_at_date_time, current time: current_date_time
Cause	The license specified will expire in less than 30 days.
Effect	If no new license is provided before the expiry, the system becomes unlicensed.

licenseMissing

Table 3. licenseMissing properties
Property name	Value
Application name	license
Event name	licenseMissing
Default severity	warning
Message format string	System is running unlicensed. current time: current_date_time
Cause	No license activated on a system requiring a license.
Effect	System will continue to raise this event until a license is provided.

licenseViolation

Table 4. licenseViolation properties
Property name	Value
Application name	license
Event name	licenseViolation
Default severity	warning
Message format string	System requires a license. System will reboot at reboot_at_date_time, current time: current_date_time
Cause	No license activated on a system requiring a license.
Effect	If no license is provided before the reboot time, the system will reboot.

November 6, 2025