Section: 28.3.2.7 AMF Set FQDN
Content: An AMF Set within an operator's PLMN is identified by its AMF Set ID, AMF Region ID, MNC and MCC. A subdomain name shall be derived from the MNC and MCC by adding the label "amfset" to the beginning of the Home Network Realm/Domain (see clause 28.2). The AMF Set FQDN shall be constructed as follows: set<AMF Set Id>.region<AMF Region Id>.amfset.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org where - <MNC> = 3 digits - <MCC> = 3 digits If there are only 2 significant digits in the MNC, one "0" digit shall be inserted at the left side to fill the 3 digits coding of MNC in the AMF Set FQDN. - <AMF Set Id> and <AMF Region Id> are the hexadecimal strings of the AMF Set ID and AMF Region ID. If there are less than 2 significant digits in <AMF Region Id>, "0" digit(s) shall be inserted at the left side to fill the 2 digits coding. If there are less than 3 significant digits in <AMF Set Id>, "0" digit(s) shall be inserted at the left side to fill the 3 digits coding. As an example, the AMF Set FQDN for the AMF Set 1, AMF Region 48 (hexadecimal), MCC 345 and MNC 12 is coded as: "set001.region48.amfset.5gc.mnc012.mcc345.3gppnetwork.org" An AMF Set within an operator's Stand-alone Non-Public Network (SNPN) shall be identified by its AMF Set ID, AMF Region ID and by either its Network Identifier (NID), MNC and MCC or an SNPN domain name pre-configured in the NF. The AMF Set FQDN shall be constructed as follows: set<AMF Set Id>.region<AMF Region Id>.amfset.5gc.nid<NID>.mnc<MNC>.mcc<MCC>.3gppnetwork.org or set<AMF Set Id>.region<AMF Region Id>.amfset.<SNPN domain name> where - <MNC> and <MCC> shall be encoded as specified above; - NID shall be encoded as hexadecimal digits as specified in clause 12.7; - <SNPN domain name> is a domain name chosen by the SNPN operator. As an example, the AMF Set FQDN for the AMF Set 1, AMF Region 48 (hexadecimal), NID 000007ed9d5 (hexadecimal), MCC 345 and MNC 12 is coded as: "set001.region48.amfset.5gc.nid000007ed9d5. mnc012.mcc345.3gppnetwork.org"