4.2.6 Service-based interfaces
23.5013GPPRelease 18System architecture for the 5G System (5GS)TS
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 2: 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 3: The Service-based interfaces exhibited by EADSF is defined in TS 23.548 [130].
Nupf: Service-based interface exhibited by UPF.