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Monitor and troubleshoot
Documents in this section 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.
Log Events Guide
This document provides guidance for operators to interpret log events for the Nokia Service Router Linux (SR Linux).
platform

Monitor and troubleshoot
Documents in this section 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.
- Troubleshooting Toolkit
  This document describes how to use and configure diagnostic tools for the Nokia Service Router Linux (SR Linux).
- 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).

platform

airflowCorrected

Table 1. airflowCorrected properties
Property name	Value
Application name	platform
Event name	airflowCorrected
Default severity	notice
Message format string	The type in slot slot now matches the dominant airflow of other modules in the system
Cause	The specified module is now part of the majority (either front to back, or back to front) fans + PSUs in the system. This clearance is triggered when a module moves from being part of the minority to the majority, typically through other modules being plugged/unplugged.
Effect	The specified module is providing correct airflow to the system.

airflowMismatch

Table 2. airflowMismatch properties
Property name	Value
Application name	platform
Event name	airflowMismatch
Default severity	critical
Message format string	The type in slot slot does not match the airflow of other modules in the system
Cause	The inserted module does not match the airflow direction of other modules in the system.
Effect	The system is working with inefficient cooling, and may trigger thermal protection.

componentBooting

Table 3. componentBooting properties
Property name	Value
Application name	platform
Event name	componentBooting
Default severity	informational
Message format string	Component type slot has started initialization
Cause	The componentBooting event is generated when the active control module has started initializing the component.
Effect	The specified component has started initializing.

componentDown

Table 4. componentDown properties
Property name	Value
Application name	platform
Event name	componentDown
Default severity	critical
Message format string	Component type slot is no longer operational
Cause	The componentDown event is generated when a component has transitioned from any other operational state to the down state.
Effect	The specified component is now down.

componentFailed

Table 5. componentFailed properties
Property name	Value
Application name	platform
Event name	componentFailed
Default severity	critical
Message format string	Component type slot has failed, reason reason
Cause	The componentFailed event is generated when a component has transitioned from any other operational state to the failed state.
Effect	The specified component is now failed.

componentInserted

Table 6. componentInserted properties
Property name	Value
Application name	platform
Event name	componentInserted
Default severity	notice
Message format string	Component type slot has been inserted into the system
Cause	The componentInserted event is generated when a component has been initially detected by the active control module.
Effect	The specified component is detected.

componentLocatorDisabled

Table 7. componentLocatorDisabled properties
Property name	Value
Application name	platform
Event name	componentLocatorDisabled
Default severity	notice
Message format string	Locator LED disabled on type slot
Cause	The componentLocatorDisabled event is generated when the locator LED for the component has been disabled, either via timeout, or via operator action.
Effect	The specified component's LED is no longer flashing with locator functionality.

componentLocatorEnabled

Table 8. componentLocatorEnabled properties
Property name	Value
Application name	platform
Event name	componentLocatorEnabled
Default severity	notice
Message format string	Locator LED enabled on type slot for duration seconds
Cause	The componentLocatorEnabled event is generated when the locator LED for the component has been enabled by an operator action.
Effect	The specified component's LED is now flashing with locator functionality.

componentRemoved

Table 9. componentRemoved properties
Property name	Value
Application name	platform
Event name	componentRemoved
Default severity	critical
Message format string	Component type slot has been removed from the system
Cause	The componentRemoved event is generated when a component has is no longer detected in the system. This does not necessarily indicate that the component has been physically removed, but indicates that it is no longer detected by the active control module.
Effect	The specified component is no longer detected by the active control module.

componentRestarted

Table 10. componentRestarted properties
Property name	Value
Application name	platform
Event name	componentRestarted
Default severity	critical
Message format string	Component type slot has been restarted
Cause	The componentRestarting event is generated when the a component has been restarted.
Effect	The specified component has been restarted.

componentTemperatureExceeded

Table 11. componentTemperatureExceeded properties
Property name	Value
Application name	platform
Event name	componentTemperatureExceeded
Default severity	warning
Message format string	Component type slot has exceeded its temperature threshold, current temperature temperatureC
Cause	The componentTemperatureExceeded event is generated when the component has exceeded its temperature threshold.
Effect	The specified component has a temperature sensor that is overheating, the component may shut down by thermal protection.

componentTemperatureFailure

Table 12. componentTemperatureFailure properties
Property name	Value
Application name	platform
Event name	componentTemperatureFailure
Default severity	warning
Message format string	Component type slot has exceeded its safe operating temperature, component will be powered down in 10 seconds. Current temperature temperatureC
Cause	The componentTemperatureFailure event is generated when the component has exceeded its maximum temperature.
Effect	The specified component has a temperature sensor that has overheated, the component will shut down in 10 seconds for thermal protection.

componentTemperatureNormal

Table 13. componentTemperatureNormal properties
Property name	Value
Application name	platform
Event name	componentTemperatureNormal
Default severity	notice
Message format string	Component type slot temperature is now normal, current temperature temperatureC
Cause	The componentTemperatureNormal event is generated when the component has recovered from a temperature exceeded state.
Effect	The specified component is now within temperature operating limits.

componentUp

Table 14. componentUp properties
Property name	Value
Application name	platform
Event name	componentUp
Default severity	notice
Message format string	Component type slot is now operational
Cause	The componentUp event is generated when a component has transitioned from any other operational state to the up state.
Effect	The specified component is now up.

controlModuleActivityChange

Table 15. controlModuleActivityChange properties
Property name	Value
Application name	platform
Event name	controlModuleActivityChange
Default severity	critical
Message format string	Control module slot has become activity_state
Cause	The controlModuleActivityChange event is generated when there has been an activity change on either control module.
Effect	The specified control module has transitioned to the specified state.

controlModuleConfigSynchronized

Table 16. controlModuleConfigSynchronized properties
Property name	Value
Application name	platform
Event name	controlModuleConfigSynchronized
Default severity	informational
Message format string	Configuration synchronization with standby control module standby_slot has succeeded
Cause	Configuration has been successfully synchronized between the active and standby control modules.
Effect	The standby control module now has the same configuration as the active.

controlModuleImageSynchronized

Table 17. controlModuleImageSynchronized properties
Property name	Value
Application name	platform
Event name	controlModuleImageSynchronized
Default severity	informational
Message format string	Image synchronization with standby control module standby_slot has succeeded
Cause	Images have been successfully synchronized between the active and standby control modules.
Effect	The standby control module now has the same images as the active.

controlModuleInSync

Table 18. controlModuleInSync properties
Property name	Value
Application name	platform
Event name	controlModuleInSync
Default severity	informational
Message format string	Active and standby control modules are now synchronized
Cause	All synchronization activities have completed between the active and standby control modules.
Effect	The standby control module is now ready for a control module switchover, if necessary.

controlModuleOverlaySynchronized

Table 19. controlModuleOverlaySynchronized properties
Property name	Value
Application name	platform
Event name	controlModuleOverlaySynchronized
Default severity	informational
Message format string	Overlay synchronization with standby control module standby_slot has succeeded
Cause	Overlays have been successfully synchronized between the active and standby control modules.
Effect	The standby control module now has the same overlay as the active.

controlModuleSyncLost

Table 20. controlModuleSyncLost properties
Property name	Value
Application name	platform
Event name	controlModuleSyncLost
Default severity	critical
Message format string	Active control module has lost visibility of the standby control module
Cause	Connection between the active and standby control modules has been lost.
Effect	The standby control module is no longer capable of taking over in the event of a failure of the active, no configuration or images are being synchronized.

controlModuleSyncStart

Table 21. controlModuleSyncStart properties
Property name	Value
Application name	platform
Event name	controlModuleSyncStart
Default severity	informational
Message format string	Active and standby control modules are now synchronizing synchronization_category
Cause	A synchronization has been triggered between the active and standby control modules.
Effect	Configuration, images, or persistent storage is being synchronized between the active and standby control module.

fantrayEmpty

Table 22. fantrayEmpty properties
Property name	Value
Application name	platform
Event name	fantrayEmpty
Default severity	critical
Message format string	Component fan-tray slot is not present in the system
Cause	The fantrayEmpty event is generated when a fan-tray has transitioned from any other operational state to the empty state, or is never present.
Effect	The system may have cooling issues.

linecardCapacityDegraded

Table 23. linecardCapacityDegraded properties
Property name	Value
Application name	platform
Event name	linecardCapacityDegraded
Default severity	critical
Message format string	Linecard slot forwarding complex forwarding-complex fabric capacity degraded
Cause	The specified linecard's forwarding complex has insufficient operational fabric links.
Effect	Packets may be dropped if the linecard's forwarding complex is sending and receiving significant amounts of traffic to the fabric.

linecardCapacityNormal

Table 24. linecardCapacityNormal properties
Property name	Value
Application name	platform
Event name	linecardCapacityNormal
Default severity	informational
Message format string	Linecard slot forwarding complex forwarding-complex fabric capacity normal
Cause	The specified linecard's forwarding complex has sufficient operational fabric links again.
Effect	Normal behavior is restored for sending and receiving traffic to the fabric.

platformLowPower

Table 25. platformLowPower properties
Property name	Value
Application name	platform
Event name	platformLowPower
Default severity	emergency
Message format string	Insufficient power for currently installed components, current_powerW available, required_powerW required
Cause	Available power from operational power supplies is insufficient to power all components in the system.
Effect	Components in the system will be powered down until required power is lower than what is supplied by operational power supplies.

platformLowReservePower

Table 26. platformLowReservePower properties
Property name	Value
Application name	platform
Event name	platformLowReservePower
Default severity	critical
Message format string	Insufficient reserve power for currently installed components, current_powerW available, required_powerW required
Cause	Available power is less than one power supply capacity extra to power all components in the system.
Effect	Power will be insufficient if one operational power supply is lost.

platformNormalPower

Table 27. platformNormalPower properties
Property name	Value
Application name	platform
Event name	platformNormalPower
Default severity	informational
Message format string	Sufficient power for currently installed components, current_powerW available, required_powerW required
Cause	Available power from operational power supplies is sufficient to power all components in the system.
Effect	Enough power is available.

psuInputDown

Table 28. psuInputDown properties
Property name	Value
Application name	platform
Event name	psuInputDown
Default severity	warning
Message format string	Power input on power-supply slot is down
Cause	Input fault on the specified power supply is set.
Effect	The specified power supply can no longer supply power to the system.

psuInputUp

Table 29. psuInputUp properties
Property name	Value
Application name	platform
Event name	psuInputUp
Default severity	notice
Message format string	Power input on power-supply slot is up
Cause	Input fault on the specified power supply is clear.
Effect	The specified power supply can now supply power to the system.

psuOutputDown

Table 30. psuOutputDown properties
Property name	Value
Application name	platform
Event name	psuOutputDown
Default severity	warning
Message format string	Power output on power-supply slot is down
Cause	Output fault on the specified power supply is set.
Effect	The specified power supply can no longer supply power to the system.

psuOutputUp

Table 31. psuOutputUp properties
Property name	Value
Application name	platform
Event name	psuOutputUp
Default severity	notice
Message format string	Power output on power-supply slot is up
Cause	Output fault on the specified power supply is clear.
Effect	The specified power supply can now supply power to the system.

psuTemperatureFault

Table 32. psuTemperatureFault properties
Property name	Value
Application name	platform
Event name	psuTemperatureFault
Default severity	warning
Message format string	Component type slot has raised a temperature fault, current temperature temperatureC
Cause	The psuTemperatureFault event is generated when the power supply raises a temperature fault.
Effect	The power supply is overheating, and may shut down by thermal protection.

psuTemperatureNormal

Table 33. psuTemperatureNormal properties
Property name	Value
Application name	platform
Event name	psuTemperatureNormal
Default severity	notice
Message format string	Component type slot temperature fault is now clear, current temperature temperatureC
Cause	The psuTemperatureNormal event is generated when the power supply recovered from a temperature fault state.
Effect	The power supply is now within temperature operating limits.

systemInServiceSoftwareUpgrade

Table 34. systemInServiceSoftwareUpgrade properties
Property name	Value
Application name	platform
Event name	systemInServiceSoftwareUpgrade
Default severity	critical
Message format string	System is upgrading from old_version to new_version, utilizing warm reboot
Cause	The systemInServiceSoftwareUpgrade event is generated when a software triggered in service software upgrade request has been made.
Effect	The control and management plane of the system will go offline, the datapath will continue forwarding based on current state. The system will upgrade the kernel, operating system, and/or applications as needed.

systemReboot

Table 35. systemReboot properties
Property name	Value
Application name	platform
Event name	systemReboot
Default severity	critical
Message format string	System going down for reboot
Cause	The systemReboot event is generated when a software triggered reboot has been made.
Effect	The system will go offline for reboot.

systemWarmReboot

Table 36. systemWarmReboot properties
Property name	Value
Application name	platform
Event name	systemWarmReboot
Default severity	critical
Message format string	System going down for warm reboot
Cause	The systemWarmReboot event is generated when a software triggered warm reboot has been made.
Effect	The control and management plane of the system will go offline, the datapath will continue forwarding based on current state.

systemWarmRebootAborted

Table 37. systemWarmRebootAborted properties
Property name	Value
Application name	platform
Event name	systemWarmRebootAborted
Default severity	critical
Message format string	System has aborted a requested warm reboot due to reason
Cause	The systemWarmRebootAborted event is generated when a software triggered warm reboot request has been aborted, typically due to unsupported configuration.
Effect	The in progress warm reboot has been aborted, no effect to system configuration or state.