3GPP 23.501 v20.2.0 — the document's own text
4.2.6 Service-based interfaces
Taught in 3. The shape of the 5G core (The 5G system architecture, in depth), 3. How one function calls another (The 5G system architecture, overview).
The 5G System Architecture contains the following service-based interfaces:
Namf: Service-based interface exhibited by AMF.
Nsmf: Service-based interface exhibited by SMF.
Nnef: Service-based interface exhibited by NEF.
Npcf: Service-based interface exhibited by PCF.
Nudm: Service-based interface exhibited by UDM.
Naf: Service-based interface exhibited by AF.
Nnrf: Service-based interface exhibited by NRF.
Nnsacf: Service-based interface exhibited by NSACF.
Nnssaaf: Service-based interface exhibited by NSSAAF.
Nnssf: Service-based interface exhibited by NSSF.
Nausf: Service-based interface exhibited by AUSF.
Nudr: Service-based interface exhibited by UDR.
Nudsf: Service-based interface exhibited by UDSF.
N5g-eir: Service-based interface exhibited by 5G-EIR.
Nnwdaf: Service-based interface exhibited by NWDAF.
Nchf: Service-based interface exhibited by CHF.
Nucmf: Service-based interface exhibited by UCMF.
Ndccf: Service based interface exhibited by DCCF.
Nmfaf: Service based interface exhibited by MFAF.
Nadrf: Service based interface exhibited by ADRF.
Naanf: Service-based interface exhibited by AANF.
NOTE 1: The Service-based interface exhibited by AANF is defined in TS 33.535 [124].
N5g-ddnmf: Service-based interface exhibited by 5G DDNMF.
Nmbsmf: Service-based interface exhibited by MB-SMF.
Nmbsf: Service-based interface exhibited by MBSF.
NOTE 2: The Service-based interfaces exhibited by MB-SMF and MBSF are defined in TS 23.247 [129].
Ntsctsf: Service-based interface exhibited by TSCTSF.
Nbsp: Service-based interface exhibited by an SBI capable Boostrapping Server Function in GBA.
NOTE 3: The Service-based interfaces exhibited by an SBI capable Boostrapping Server Function are defined in TS 33.220 [140] and TS 33.223 [141].
Neasdf: Service-based interface exhibited by EASDF.
NOTE 4: The Service-based interfaces exhibited by EADSF is defined in TS 23.548 [130].
Nupf: Service-based interface exhibited by UPF.
Neif: Service-based interface exhibited by EIF.
Naiotf: Service-based interface exhibited by the AIOTF.
Nadm: Service-based interface exhibited by the ADM.
NOTE 5: The Service-based interfaces exhibited by AIOTF and ADM are defined in TS 23.369 [220].
Nsenf: Service-based interface exhibited by the SenF.
NOTE 6: The Service-based interfaces exhibited by the SenF is defined in TS 23.137 [223].