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).

lag

lagDown

Table 1. lagDown properties
Property name	Value
Application name	lag
Event name	lagDown
Default severity	warning
Message format string	LAG Interface interface_name: The operational state has transitioned to Down
Cause	This warning is generated when a LAG transitions to the down state.
Effect	The LAG is now down and any associated subinterfaces will also be brought down.
Raising event	N/A
Clearing event	N/A

lagDownMinLinks

Table 2. lagDownMinLinks properties
Property name	Value
Application name	lag
Event name	lagDownMinLinks
Default severity	warning
Message format string	LAG Interface interface_name: The active number of member links has fallen below the min-links threshold
Cause	This warning is generated when a LAG transitions to the down state because the number of active links has dropped below the min-link threshold
Effect	The LAG is now down and any associated subinterfaces will also be brought down.
Raising event	N/A
Clearing event	N/A

lagMemberLinkAdded

Table 3. lagMemberLinkAdded properties
Property name	Value
Application name	lag
Event name	lagMemberLinkAdded
Default severity	notice
Message format string	LAG Interface interface_name: The member-link member-interface has been added
Cause	This notification is generated when a new member-link is added to a LAG.
Effect	A new member link is now available to the LAG bundle.
Raising event	N/A
Clearing event	N/A

lagMemberLinkRemoved

Table 4. lagMemberLinkRemoved properties
Property name	Value
Application name	lag
Event name	lagMemberLinkRemoved
Default severity	notice
Message format string	LAG Interface interface_name: The member-link member-interface has been removed
Cause	This notification is generated when a new member-link is removed from a LAG.
Effect	The specified interfaces is no longer a member of the LAG bundle.
Raising event	N/A
Clearing event	N/A

lagMemberOperDown

Table 5. lagMemberOperDown properties
Property name	Value
Application name	lag
Event name	lagMemberOperDown
Default severity	warning
Message format string	LAG Interface interface_name: The member-link member-interface operational state has transitioned to Down
Cause	This notification is generated when a member-link transitions to the down state.
Effect	The member link is now down and will not forward traffic.
Raising event	N/A
Clearing event	N/A

lagMemberOperUp

Table 6. lagMemberOperUp properties
Property name	Value
Application name	lag
Event name	lagMemberOperUp
Default severity	warning
Message format string	LAG Interface interface_name: The member-link member-interface operational state has transitioned to Up
Cause	This notification is generated when a member-link transitions to the up state.
Effect	The member link is now operational.
Raising event	N/A
Clearing event	N/A

lagUp

Table 7. lagUp properties
Property name	Value
Application name	lag
Event name	lagUp
Default severity	notice
Message format string	LAG Interface interface_name: The operational state has transitioned to Up
Cause	This notification is generated when a LAG transitions to the up state.
Effect	The LAG is now operational.
Raising event	N/A
Clearing event	N/A

July 16, 2026