Section: 6.3.1.3.1 PDU EAP result message transport procedure initiation
Content: PDU EAP result message transport procedure is initiated by the SMF if the PDU session authentication and authorization procedure is performed after the PDU session is established and the DN authentication of the UE completes successfully. In order to initiate the PDU EAP result message transport procedure, the SMF shall create a PDU SESSION AUTHENTICATION RESULT message. The SMF shall set the PTI IE of the PDU SESSION AUTHENTICATION RESULT message to "No procedure transaction identity assigned". The SMF shall set the EAP message IE of the PDU SESSION AUTHENTICATION RESULT message to the EAP-success message provided by the DN. The SMF shall send the PDU SESSION AUTHENTICATION RESULT message. Upon receipt of a PDU SESSION AUTHENTICATION RESULT message and a PDU session ID, using the NAS transport procedure as specified in subclause 5.4.5, the UE passes to the upper layers the EAP message received in the EAP message IE of the PDU SESSION AUTHENTICATION RESULT message. Apart from this action, the authentication and authorization procedure initiated by the DN is transparent to the 5GSM layer of the UE.