A.56 Monitoring of PFD management

28.5523GPP5G performance measurementsManagement and orchestrationRelease 18TS

The Packet Flow Description (PFD) describes the packet flow for the UL/DL application traffic by a tuple of protocol, server-side IP and port number.

Management of Packet Flow Descriptions (PFDs) refers to the capability to create, update or delete PFDs in the NEF (PFDF) for the applications under the request of AF, and the distribution from the NEF (PFDF) to the SMF and finally to the UPF.

The 5G network needs to have the up-to-date PFDs in order to deliver the user data to the destination for the applications, and the applications cannot be fulfilled without PFDs or with wrong or obsolete PFDs. Therefore, the performance of PFD management, including PFD creation, update, deletion, fetch and subscription, needs to be monitored.