Configuring FH Action for Handling Session Report Errors

This section describes how to define the parameter within the UPF failure handling configuration to gracefully handle the session report errors.

When the SMF rejects the Session Report Request message and the failure handling configuration includes the parameter, the SMF supports the following failure handling actions:

  • ignore : Ignores the error and does not take any further action

  • terminate : Terminates the session (Triggers the Session Deletion Request)

During this scenario, if the failure handling configuration is unavailable, the SMF does not initiate the Session Deletion Request.

configure 
   profile failure-handling profile_name 
      interface pfcp message N4SessionReportReq 
         cause-code cause_ID 
         action { ignore | terminate } 
         end 

NOTES:

  • profile failure-handling : Specifies the UPF profile that is associated with Failure Handling Template (FHT).

  • interface pfcp message N4SessionReportReq : Specifies the failure handling for N4 Session Report Request.

  • cause-code cause_ID : Specifies the error codes that the SMF receives in the failure response message from the UPF. cause_ID can be any integer from 2 through 255. The cause code value can be separated by either '-' or ',' or both. For example, cause-code 72-74,76,78-100

  • action { ignore | terminate } : Specifies the action to perform based on the error cause code received in the failure response message from the UPF.

    • ignore : Specifies to ignore the session.

    • terminate : Specifies to terminate the session.