Section: 4.17.4a NF/NF service discovery by NF service consumer in the same SNPN
Content: The NF/NF service discovery by NF service consumer in the same SNPN follows the same principles as NF/NF service discovery by NF service consumer in the same PLMN, see clause 4.17.4. The following additions apply: - If the target NF is AUSF or NSSAAF and the Nnrf_NFDiscovery_Request includes a Home Network Identifier (HNI) in the form of a realm and the HNI belongs to a CH with AAA Server or a DCS with AAA Server, the NRF provides the AUSF or NSSAAF in the same SNPN, based on the NF profile as specified in clause 6.2.6.2 of TS 23.501[ System architecture for the 5G System (5GS) ]  [2]. - If the target NF is UDM and the Nnrf_NFDiscovery_Request includes a Home Network Identifier (HNI) in the form of a realm and the HNI belongs to a CH with AAA Server, the NRF provides the UDM in the same SNPN, based on the NF profile as specified in clause 6.2.6.2 of TS 23.501[ System architecture for the 5G System (5GS) ]  [2].