Feature Description

Feature History

Feature Name

Release Information

Description

Support for Multiple N4/Sx Interfaces

2023.04

A single UPF can establish multiple N4 or Sx interfaces with any number of control plane network functions such as SMF, cnSGWc, SAEGW-C, PGW-C, and SGW-C. The maximum number of supported N4/Sx peer nodes has been increased from 16 nodes to 18 nodes in this release.

The Multiple N4/Sx Interfaces feature enables a single UPF to establish multiple N4 or Sx interfaces with any number of control plane NFs. The control plane NFs include SMF, SAEGW-C, PGW-C, SGW-C, and cnSGWc.

The integration of multiple control plane nodes with a single UPF results in optimal usage of resources. UPF supports a maximum configuration of 18 N4 or Sx peer nodes per control-plane-group.

Architecture

The following figure illustrates the architecture of multiple N4 interfaces with a single UPF.