Section: 28.3.2.2.8 Prefixed Operator Identifier based N3IWF FQDN
Content: The Prefixed Operator Identifier based N3IWF FQDN, used by a UE that is configured with Slice-specific N3IWF prefix configuration, shall be constructed as specified for the Operator Identifier based N3IWF FQDN in clause 28.3.2.2.2, with the addition of <Prefix> before the labels "n3iwf.5gc". The <Prefix> is provided in the Slice-specific N3IWF prefix configuration for the selected PLMN that contains S-NSSAIs that match all (or most, in case there is no full match) of the S-NSSAIs that the UE is going to include in the Requested NSSAI in the subsequent Registration procedure, and is specified in 3GPP TS 24.526[ User Equipment (UE) policies for 5G System (5GS); Stage 3 ]  [144]. The Prefixed Operator Identifier based N3IWF FQDN shall be constructed as follows: "<Prefix>.n3iwf.5gc.mnc<MNC>.mcc<MCC>.pub.3gppnetwork.org" As an example, the Prefixed Operator Identifier based N3IWF FQDN for MNC 123, MCC 345 with an example <Prefix> value "ssn3iwfprefix-Y" is coded in the DNS as: "ssn3iwfprefix-Y.n3iwf.5gc.mnc123.mcc345.pub.3gppnetwork.org".