Defining UPF Selection Query Parameters

This section describes how to configure parameters that enable SMF to select the UPF using the selection query.

To define the UPF selection policy-specific configuration, use the following sample configuration.

config 
   policy upf-selection upfpolicy_name 
      precedence priority_value [ dcnr | dnn | location | pdn-type-session | pdn-type-subscription | slice ] 
      end 

NOTES:

  • policy upf-selection upfpolicy_name : Specify the UPF policy name that must be associated with the DNN profile.

    The SMF selects the UPF node with the lowest precedence value. The SMF selects the node with the highest precedence selection-criteria when the previous lower precedence criteria did not return any UPF. If the configured criteria are exhausted, and nodes are not selected, then the UPF selection policy fails.

    Within the precedence value, the intersection of UPFs from each criterion is performed to retrieve the UPF list.

  • precedence priority_value [ dcnr | dnn | location | pdn-type-subscription | pdn-type-session | slice ] : Assign the precedence value to the UPF policy. Specify the DNN and other parameters for the UPF selection.

    The precedence keyword allows a maximum of four precedence values to be configured under the UPF selection policy.

    If the DNN profile does not have any UPF selection policy associated with it, then the SMF performs UPF selection using location DNN or DNN, priority, and load information.