BFD/4/STACHG_TODWN
Message
BFD/4/STACHG_TODWN:BFD session changed to Down. (SlotNumber=[SlotNumber], Discriminator=[Discriminator], Diagnostic=[Diagnostic], Applications=[Applications], ProcessPST=[ProcessPST], BindInterfaceName=[BindInterfaceName], InterfacePhysicalState=[InterfacePhysicalState], InterfaceProtocolState=[InterfaceProtocolState], TunnelName=[TunnelName])
Parameters
| Parameter Name | Parameter Meaning |
|---|---|
SlotNumber |
Indicates the slot number of an interface board. |
Discriminator |
Indicates the discriminator of a session. |
Diagnostic |
Indicates the type of the Down state. The values are as follows:
|
Applications |
Indicates the application that is bound to the BFD session. |
ProcessPST |
Indicates the flag bit of the PST that is modified. |
BindInterfaceName |
Indicates the name of the bound interface. |
InterfacePhysicalState |
Indicates the physical status of the interface. |
InterfaceProtocolState |
Indicates the protocol status of the interface. |
TunnelName |
Indicates the name of tunnel. |
Possible Causes
- The BFD session went Down when no BFD packets was received for the BFD session within a detection period.
- The BFD session entered the NeighborDown state when a Down packet was received from the peer.
- The BFD session entered the AdminDown state when being shut down.
- The BFD session entered the ReceiveAdminDown state when an AdminDown packet was received from the peer.
Procedure
- Run the display current-configuration configuration bfd command to check whether the BFD session recovers.
- If the BFD session recovers, go to Step 5.
- If the BFD session does not recover, go to Step 2.
- Run the display current-configuration configuration bfd command to check whether BFD is disabled on either of both ends.
- If BFD is disabled on either of both ends, enable BFD and go to Step 1.
- If BFD is enabled on either of both ends, go to Step 3.
- Run the display bfd session all command to check whether the BFD sessions are deleted or shut down on both ends.
- If the BFD sessions are deleted or shut down on both ends, reconfigure BFD sessions and go to Step 1.
- the BFD sessions are not deleted or shut down on both ends, go to Step 4.
- Run the ping command to check whether the link monitored by the BFD session is working properly.
- If the link monitored by the BFD session is working properly, contact technical support personnel.
- If the link monitored by the BFD session is not working properly, rectify the link fault.
- End.
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