SMF PCF Failure Handling
This section describes the working of SMF for message-level failure handling and the corresponding HTTP status code-based failure.
The SMF PCF failover supports the following messages that are initiated from the SMF.
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PcfSmpolicycontrolCreate
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PcfSmpolicycontrolUpdate
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PcfSmpolicycontrolDelete
During the PDU session lifecycle, the SMF exchanges the messages at various stages with the PCF. Depending on the HTTP status code configured in the NRF failure profile, the SMF receives one of the following actions:
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Ignore
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Continue
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Terminate
PcfSmpolicy controlCreate |
PcfSmpolicy controlUpdate |
PcfSmpolicy controlDelete |
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Ignore |
Continue with locally configured/UDM-provided policy parameters.
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Continue with ‘currently available snapshot’ of policy parameters. Contact PCF for subsequent messages. PCF-Interaction Status: ON |
Current failure ignored. Session is deleted. PCF-Interaction Status: Session deleted |
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Continue |
Continue with locally configured/UDM-provided policy parameters.
|
Continue with ‘currently available snapshot’ of policy parameters.
|
Current failure ignored. Session is deleted. PCF-Interaction Status: Session deleted |
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Terminate |
Terminate the session. |
Terminate the session. |
Terminate the session. |