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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).
bfd

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).
- Log Events Guide
  This document provides guidance for operators to interpret log events for the Nokia Service Router Linux (SR Linux).

bfd

bfdDownEvent

bfdDownEvent:bfd

Table 1. bfdDownEvent properties
Property name	Value
Application name	bfd
Event name	bfdDownEvent
Default severity	warning
Message format string	BFD: Network-instance network-instance - Session from local-address:local-discriminator to remote-address:remote-discriminator has transitioned to the down-state state with local-diagnostic code: local-diagnostic-str ( local-diagnostic-code) and remote-diagnostic code: remote-diagnostic-str ( remote-diagnostic-code)
Cause	This notification is generated when a BFD sessions transitions to the Down or Admin Down state from an Up state.
Effect	The specified BFD sessions is now down. If the new state is Down, the session is down due to a failure see the local or remote diagnostic code. If the new state is Admin-Down the session is down due to administrative reasons.

bfdMaxSessionActive

bfdMaxSessionActive:bfd

Table 2. bfdMaxSessionActive properties
Property name	Value
Application name	bfd
Event name	bfdMaxSessionActive
Default severity	warning
Message format string	BFD: Network-instance network-instance - Session from local-address to remote-address requested by client-protocol could not be created because the maximum number of BFD sessions bfd-max-session are active.
Cause	This notification is generated when a BFD session cannot be created because the maximum number of BFD sessions are already active.
Effect	No more BFD sessions can be created until some existing sessions are removed.

bfdProtocolClientAdd

bfdProtocolClientAdd:bfd

Table 3. bfdProtocolClientAdd properties
Property name	Value
Application name	bfd
Event name	bfdProtocolClientAdd
Default severity	notice
Message format string	BFD: Network-instance network-instance - The protocol client-protocol is now using BFD session from local-address:local-discriminator to remote-address: remote-discriminator
Cause	This notification is generated when a new protocol begins to use a BFD session to track liveliness.
Effect	The specified protocol will be notified by BFD if the associated sessions transitions from an Up to a Down state. It will be up to the receiving protocol to determine the course of action.

bfdProtocolClientRemove

bfdProtocolClientRemove:bfd

Table 4. bfdProtocolClientRemove properties
Property name	Value
Application name	bfd
Event name	bfdProtocolClientRemove
Default severity	notice
Message format string	BFD: Network-instance network-instance - The protocol client-protocol using BFD session from local-address:local-discriminator to remote-address: remote-discriminator has been cleared
Cause	This notification is generated when a protocol stops using a BFD session to track liveliness.
Effect	The specified protocol will no longer be notified by BFD if the associated sessions transitions from an Up to a Down state

bfdSessionDeleted

bfdSessionDeleted:bfd

Table 5. bfdSessionDeleted properties
Property name	Value
Application name	bfd
Event name	bfdSessionDeleted
Default severity	notice
Message format string	BFD: Network-instance network-instance - Session from local-address:local-discriminator to remote-address:remote-discriminator has been deleted
Cause	This notification is generated when a BFD session has been removed from the configuration.
Effect	The BFD session has been removed.

bfdSessionUp

bfdSessionUp:bfd

Table 6. bfdSessionUp properties
Property name	Value
Application name	bfd
Event name	bfdSessionUp
Default severity	notice
Message format string	BFD: Network-instance network-instance - Session from local-address:local-discriminator to remote-address:remote-discriminator is UP
Cause	This notification is generated when a BFD sessions transitions to the up state.
Effect	The BFD session is now operational.

microbfdDownEvent

microbfdDownEvent:bfd

Table 7. microbfdDownEvent properties
Property name	Value
Application name	bfd
Event name	microbfdDownEvent
Default severity	warning
Message format string	BFD: LAG lag-interface member member-interface - Session from local-address:local-discriminator to remote-address:remote-discriminator has transitioned to the down-state state with local-diagnostic code: local-diagnostic-str ( local-diagnostic-code) and remote-diagnostic code: remote-diagnostic-str ( remote-diagnostic-code)
Cause	This notification is generated when a BFD sessions transitions to the Down or Admin Down state from an Up state.
Effect	The specified BFD sessions is now down. If the new state is Down, the session is down due to a failure see the local or remote diagnostic code. If the new state is Admin-Down the session is down due to administrative reasons.

microbfdMaxSessionActive

microbfdMaxSessionActive:bfd

Table 8. microbfdMaxSessionActive properties
Property name	Value
Application name	bfd
Event name	microbfdMaxSessionActive
Default severity	warning
Message format string	BFD: LAG lag-interface member member-interface - Session from local-address to remote-address could not be created because the maximum number of BFD sessions bfd-max-session are active.
Cause	This notification is generated when a BFD session cannot be created because the maximum number of BFD sessions are already active.
Effect	No more BFD sessions can be created until some existing sessions are removed.

microbfdSessionDeleted

microbfdSessionDeleted:bfd

Table 9. microbfdSessionDeleted properties
Property name	Value
Application name	bfd
Event name	microbfdSessionDeleted
Default severity	notice
Message format string	BFD: LAG lag-interface member member-interface - Session from local-address:local-discriminator to remote-address:remote-discriminator has been deleted
Cause	This notification is generated when a BFD session has been removed from the configuration.
Effect	The BFD session has been removed.

microbfdSessionUp

microbfdSessionUp:bfd

Table 10. microbfdSessionUp properties
Property name	Value
Application name	bfd
Event name	microbfdSessionUp
Default severity	notice
Message format string	BFD: LAG lag-interface member member-interface - Session from local-address:local-discriminator to remote-address:remote-discriminator is UP
Cause	This notification is generated when a BFD sessions transitions to the up state.
Effect	The BFD session is now operational.