Diameter Interfaces and their Specs

Interface	Network location	Supported version
Diameter Base Protocol		IETF RFC 3588, 4960, 793
Diameter Commands for 3GPP		IETF RFC 3589
Diameter Credit Control App		IETF RFC 4006
NASREQ Support for Network Access Server		IETF RFC 4005
EAP Support for Extensible Authentication Protocol		IETF RFC 4072
Mobile IPv4 Support for Diameter Mobile IPv4		IETF RFC 4004
Diameter Mobile IPv6		IETF RFC 5447
Diameter SIP Application		IETF RFC 4740
Sh interface	Between AS and HSS, Subscription and Authentication Data – IMS	3GPP TS 29.328 & TS 29.329
Sd interface	Between PCRF and TDF (Traffic Detection Function)	3GPP TS 29.212
Sy interface	Between PCRF and OCS/OFCS, Policy and Charging Control over Sy reference point	3GPP TS 29.219
Dh interface	Between AS and SLF	3GPP TS 29.328 & TS 29.329
Rf interface	Between AS and OFCS, postpaid charging	RFC 4006, 3GPP TS 32.225 & TS 32.299
Ro interface	Between AS and OCS, online charging in IMS & LTE	RFC 4006, 3GPP TS 32.225 & TS 32.299
Re interface	Between OCF and Rating function	3GPP TS 32.296
Cx interface	Between CSCF and HSS, Subscription and Authentication Data – IMS	3GPP TS 29.228 & TS29.229
Dx interface	Between CSCF and SLF	3GPP TS 29.228 & TS29.229
Sp interface	Between PCRF and SPR	3GPP TS 23.203, TS 29.328 & TS 29.329
Rx interface	Between AF and the PCRF, QoS and Policy	3GPP TS 23.203 & TS 29.214
Gx interface	Between PCEF and the PCRF, QoS and Policy	3GPP TS 29.212 & TS 23.203
Gy interface	Between OCS and PCEF, online charging	3GPP TS 32.299, TS 32.251 & RFC 4006
Gz interface	Between PCEF and OFCS	3GPP TS 32.240, TS 32.295
Gq interface	Between AF and PDF	3GPP TS 29.209
Gi interface	Between Packet Domain and an external packet data network	3GPP TS 29.061
SGi interface	Between the EPC based PLMN and the packet data network	3GPP TS 29.061
Zh interface	Between BSF and HSS	3GPP TS 29.109 & TS 33.220
Zh interface	Between BSF and HSS (used between operators)	3GPP TS 29.109 & TS 33.220
Dz interface	Between BSF and SLF	3GPP TS 29.109 & TS 33.220
Zn interface	Between BSF and NAF	3GPP TS 29.109 & TS 33.220
Zn' interface	Between BSF and Zn Proxy	3GPP TS 29.109 & TS 33.220
Dw interface	Between the 3GPP AAA Server and an SLF	3GPP TS 29.234
Wa interface	Between the WLAN AN and the 3GPP AAA Proxy	3GPP TS 29.234
Wd interface	Between the 3GPP AAA Proxy and 3GPP AAA Server	3GPP TS 29.234
Wx interface	Between the 3GPP AAA Server and the HSS	3GPP TS 29.234
Wm interface	Between the 3GPP AAA Server and the PDG	3GPP TS 29.234
Wg interface	Between the 3GPP AAA Server/Proxy and the WAG	3GPP TS 29.234
Pr interface	Between the 3GPP AAA Server and the PNA	3GPP TS 29.234
Wm interface	Between the 3GPP AAA Server and the PDG	3GPP TS 29.234
Gmb interface	Between GGSN and BM-SC	3GPP TS 29.061
Mz interface	Mz is the roaming variant of the Gmb reference point with the same functionality	3GPP TS 29.061
Bi interface	CCF to BS	3GPP TS TS 32.225
MM10 interface	Multimedia Messaging Service (MMS)	OMA MM10 interface
Ty interface	Between AGW and PCRF	3GPP2 TSG-X X.S0013-014
Tx interface	Between AF and PCRF	3GPP2 TSG-X X.S0013-013
S6a interface	Between MME and HSS, Subscription and Authentication Data	3GPP TS 29.272
S6b interface	Between the 3GPP AAA Server/Proxy and the PDN GW	3GPP TS 23402
S6d interface	Between SGSN and HSS, Subscription and Authentication Data	3GPP TS 29.272
S7c interface	Transfer of (QoS) policy information from PCRF to the S-GW.	3GPP TS 32820, TS 23402
S9 interface	Between PCRF in the HPLMN (H PCRF) and a PCRF in the VPLMN (V PCRF)	3GPP TS 23.203 & TS 29.215
S13 and S13' interface	Between EIR and MME/SGSN	3GPP TS 29.272
Gxa interface	PCRF and the BBERF	3GPP TS 23.203
Gxb interface	Between ePDG and vPCRF	3GPP TS 23.203
Gxc interface	BPCRF and the BBERF	3GPP TS 23.203
SWa interface	Between an un-trusted non-3GPP IP access and the 3GPP AAA Server/Proxy	3GPP TS 23402
SWd interface	Between the 3GPP AAA Proxy and 3GPP AAA Server	3GPP TS 23402
SWn interface	Between Untrusted Non-3GPP IP Access and ePDG	3GPP TS 23402
SWm interface	Between the 3GPP AAA Server/Proxy and the ePDG	3GPP TS 23402
SWx interface	Between the 3GPP AAA Server and the HSS	3GPP TS 23402
Sta interface	Between a trusted non-3GPP IP access and the 3GPP AAA Server/Proxy	3GPP TS 23402
H2 interface	Between the 3GPP AAA Server and the HA	3GPP TS 23402
Gq’ interface	Between AF and RACS	ETSI TS 183.017
E2 interface	Between AF and NASS	ETSI TS 283 035
E4 interface	Between NASS and RACS	ETSI TS 283 034
E5 interface	Between UAAF – UAAF	ETSI TS 282 004
Re interface	Between RCEF and RACS	ETSI TS 183 060
A3 interface	Between UAAF and AMF	ETSI TS 282 004
A4 interface	Between CLF and UAAF	ETSI TS 282 004
Rr interface	x-RACF	03196-NGN-R3
Zh interface	Generic Authentication Architecture (GAA)	PKT-SP-29.109
Zn interface	Generic Authentication Architecture (GAA)	PKT-SP-29.109
Cx interface	CSCF- HSS	PKT-SP-29.229
Dx interface	CSCF- SLF	PKT-SP-29.229
Pkt-laes-2 interface	Session Control Element — DF (electronic surveillance requirements)	PKT-SP-ES-INF-I01
P-CSCF- PAM Interface	Between P-CSCF – PAM	PKT-SP-QOS-I02-080425, 3GPP TS 23.203 & TS 29.214
Pkt-mm-2 interface	Policy Server — CMTS	3GPP TS 29.212 & TS 23.203
TC-6	Based on 3GPP Rx	MSF-IA-DIAMETER.010-FINAL
TC-7	Based on 3GPP Ty	MSF-IA-DIAMETER.014-FINAL
TC-8	Based on 3GPP Tx	MSF-IA-DIAMETER.013-FINAL
TC-9	Based on 3GPP Rq	MSF-IA-DIAMETER.005-FINAL
TC-10	Based on 3GPP Gx	MSF-IA-DIAMETER.012-FINAL
TC-11	Based on 3GPP e4	MSF-OA-DIMATER.011-FINAL
DB-0	Based on 3GPP Cx/Dx	MSF-IA-DIAMETER.006-FINAL
DB-2	Based on 3GPP Sh/Dh	MSF-IA-DIAMETER.003-FINAL
BI-1	Based on 3GPP Rf	MSF-IA-BILLING.001-FINAL
LOC-1	Based on 3GPP e2	MSF-IA.DIAMETER.008-FINAL
Rw interface	Between the Policy Decision Physical Entity (PD-PE) and the Policy Enforcement Physical Entity (PE-PE)	ITU Q.3303.3
Rs interface	Between Service Control Physical Entity (SC-PE) and Resource and Admission Control Physical Entity (RAC-PE)	ITU Q.3301