What functionality is included in the Session Management function (SMF)?

  • Session Management
  • allocation & management of UE IP address
  • DHCPv4 and DHCPv6 functions
  • ARP proxying
  • UP function selection and control
  • traffic steering configuration
  • Interfaces termination towards Policy control functions
  • Lawful intercept
  • Collection of charging data and charging interfaces support
  • charging data collection control and coordination at UPF
  • NAS messages SM parts termination
  • Notification of DL data
  • AN specific SM information initiation
  • SSC mode of a session determination
  • Functionality of roaming