UPF Selection Policy Based

  • UPF selection profile configuration with parameters determines UPF for each precedence. The supported max number of precedencies are four.

  • Each precedence parameter is a Logical AND condition. If DNN and DCNR are configured as precedence 1, then it searches for the DNN supported user-plane and enables DCNR based support. If this search criteria fails, it moves to the next (mostly 2) precedence and tries to evaluate that condition.

  • UPF selection policy is associated with a DNN profile.

  • UPF group provides characteristics to the network element profile which belongs to the same UPF group profile.

  • UPF selection uses Capacity and Priority if many user-planes available.

Note
  • cnSGW-C rejects the call with Create Session Response specifying cause as NO_RESOURCE_AVAILABLE when no UPF matches the precedence criteria.