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).

mld

mldCModeRxQueryVersionMismatch

Table 1. mldCModeRxQueryVersionMismatch properties
Property name	Value
Application name	mld
Event name	mldCModeRxQueryVersionMismatch
Default severity	warning
Message format string	Network-instance network_instance - Mismatch between the interface subinterface compatible mode(mldInterfaceOperVersion) and the version of the MLD query (version mldQuerierVersion) received on the interface.
Cause	This event is generated when the MLD interface receives a query with a version that is higher than the interface's compatible mode.
Effect	MLD interfaces will ignore any Queries with a version higher than the interface's compatibility mode.
Raising event	N/A
Clearing event	N/A

mldMaxNumberOfGroupSourcesReached

Table 2. mldMaxNumberOfGroupSourcesReached properties
Property name	Value
Application name	mld
Event name	mldMaxNumberOfGroupSourcesReached
Default severity	warning
Message format string	Network-instance network_instance - The number of group/source combinations learned on interface subinterface has exceeded the maximum limit of mldInterfaceMaxGroupSources.
Cause	This event is generated when an attempt is made to learn a source when the number of group/source combinations on the MLD interface is equal to the maximum number of group-sources configured on the interface.
Effect	MLD interfaces will not learn any new sources for a given group when the configured maximum number of group-sources has been reached.
Raising event	N/A
Clearing event	N/A

mldMaxNumberOfGroupsReached

Table 3. mldMaxNumberOfGroupsReached properties
Property name	Value
Application name	mld
Event name	mldMaxNumberOfGroupsReached
Default severity	warning
Message format string	Network-instance network_instance - The number of groups learned on interface subinterface has exceeded the maximum limit of mldInterfaceMaxGroups.
Cause	This event is generated when an attempt is made to learn a group when the number of groups on the MLD interface is equal to the maximum number of groups configured on the interface.
Effect	MLD interfaces will not learn any new groups when the configured maximum number of groups has been reached.
Raising event	N/A
Clearing event	N/A

mldMaxNumberOfSourcesReached

Table 4. mldMaxNumberOfSourcesReached properties
Property name	Value
Application name	mld
Event name	mldMaxNumberOfSourcesReached
Default severity	warning
Message format string	Network-instance network_instance - The number of sources learned on interface subinterface has exceeded the maximum limit of mldInterfaceMaxSources.
Cause	This event is generated when an attempt is made to learn a source when the number of sources for this group on the MLD interface is equal to the maximum number of sources per group configured on the interface.
Effect	MLD interfaces will not learn any new sources for a given group when the configured maximum number of sources for the group has been reached.
Raising event	N/A
Clearing event	N/A

mldRxQueryVersionMismatch

Table 5. mldRxQueryVersionMismatch properties
Property name	Value
Application name	mld
Event name	mldRxQueryVersionMismatch
Default severity	warning
Message format string	Network-instance network_instance - MLDvmldQuerierVersion query received on interface subinterface configured as MLDv mldInterfaceAdminVersion.
Cause	This event is generated when the MLD interface is configured as MLDv2 and receives an MLDv1 General Query.
Effect	MLD interfaces configured as MLDv2 will ignore MLDv1 General Queries.
Raising event	N/A
Clearing event	N/A

July 16, 2026