UPF Node Selection
The UPF Selection feature enables the 5GS and EPS core networks, during subscriber’s session creation, to select an UPF for reduced latency on user plane and priority-based serviceability.
The SMF performs UPF selection based on certain query parameters such as DNN, PDU session type, and so on, and also based on the priority and load information of the UPF.
The network operator leverages this functionality for efficient handling of the user plane traffic based on priority, PDU session type, and so on. This functionality is also used for effective load balancing of the user plane connections across multiple UPFs.