Diameter interfaces provide connections among Diameter nodes to enable essential service provider network functions such as authentication, online and offline billing, and policy and charging.
Seamless connectivity among the many different network components in 4G LTE environments is essential to the ability of service providers (SPs) to ensure service availability. It’s also essential in creating an interconnected environment that combines legacy and LTE elements.
Using the F5 BIG-IP platform, SPs can add support for new Diameter interfaces by simply uploading XML-based Diameter data dictionaries to BIG-IP for fast interconnection with multiple Diameter nodes.
The BIG-IP platform also provides seamless and transparent support for any vendor-specific AVPs (attribute-value pairs) and can transparently handle multiple different versions of the same AVP with different encoding. If the solution needs to modify these AVPs, they can be added into the dictionary file with different names, to allow a user to access and modify these AVPs using their real names.
The following tables shows the complete list of interfaces that are supported by the BIG-IP platform.
Interface Network location Supported versionDiameter Base Protocol IETF RFC 3588Sh interface Between AS and HSS, Subscription and Authentication Data – IMS 3GPP TS 29.328 & TS 29.329Sd interface Between PCRF and TDF (Traffic Detection Function) 3GPP TS 29.212Sy interface Between PCRF and OCS/OFCS, Policy and Charging Control over Sy reference point 3GPP TS 29.219Dh interface Between AS and SLF 3GPP TS 29.328 & TS 29.329Rf interface Between AS and OFCS, postpaid charging RFC 4006, 3GPP TS 32.225 & TS 32.299Ro interface Between AS and OCS, online charging in IMS & LTE RFC 4006, 3GPP TS 32.225 & TS 32.299Re interface Between OCF and Rating function 3GPP TS 32.296Cx interface Between CSCF and HSS, Subscription and Authentication Data – IMS 3GPP TS 29.228 & TS29.229Dx interface Between CSCF and SLF 3GPP TS 29.228 & TS29.229Sp interface Between PCRF and SPR 3GPP TS 23.203, TS 29.328 & TS 29.329Rx interface Between AF and the PCRF, QoS and Policy 3GPP TS 23.203 & TS 29.214Gx interface Between PCEF and the PCRF, QoS and Policy 3GPP TS 29.212 & TS 23.203Gy interface Between OCS and PCEF, online charging 3GPP TS 32.299, TS 32.251 & RFC 4006Gz interface Between PCEF and OFCS 3GPP TS 32.240, TS 32.295Gq interface Between AF and PDF 3GPP TS 29.209Gi interface Between Packet Domain and an external packet data network 3GPP TS 29.061SGi interface Between the EPC based PLMN and the packet data network 3GPP TS 29.061Zh interface Between BSF and HSS 3GPP TS 29.109 & TS 33.220Zh interface Between BSF and HSS (used between operators) 3GPP TS 29.109 & TS 33.220Dz interface Between BSF and SLF 3GPP TS 29.109 & TS 33.220Zn interface Between BSF and NAF 3GPP TS 29.109 & TS 33.220Zn' interface Between BSF and Zn Proxy 3GPP TS 29.109 & TS 33.220Dw interface Between the 3GPP AAA Server and an SLF 3GPP TS 29.234Wa interface Between the WLAN AN and the 3GPP AAA Proxy 3GPP TS 29.234Wd interface Between the 3GPP AAA Proxy and 3GPP AAA Server 3GPP TS 29.234Wx interface Between the 3GPP AAA Server and the HSS 3GPP TS 29.234Wm interface Between the 3GPP AAA Server and the PDG 3GPP TS 29.234Wg interface Between the 3GPP AAA Server/Proxy and the WAG 3GPP TS 29.234Pr interface Between the 3GPP AAA Server and the PNA 3GPP TS 29.234Wm interface Between the 3GPP AAA Server and the PDG 3GPP TS 29.234Gmb interface Between GGSN and BM-SC 3GPP TS 29.061Mz interface Mz is the roaming variant of the Gmb reference point with the same functionality 3GPP TS 29.061Bi interface CCF to BS 3GPP TS TS 32.225MM10 interface Multimedia Messaging Service (MMS) OMA MM10 interfaceTy interface Between AGW and PCRF 3GPP2 TSG-X X.S0013-014Tx interface Between AF and PCRF 3GPP2 TSG-X X.S0013-013S6a interface Between MME and HSS, Subscription and Authentication Data 3GPP TS 29.272S6b interface Between the 3GPP AAA Server/Proxy and the PDN GW 3GPP TS 23402S6d interface Between SGSN and HSS, Subscription and Authentication Data 3GPP TS 29.272S7c interface Transfer of (QoS) policy information from PCRF to the S-GW. 3GPP TS 32820, TS 23402S9 interface Between PCRF in the HPLMN (H PCRF) and a PCRF in the VPLMN (V PCRF) 3GPP TS 23.203 & TS 29.215S13 and S13' interface Between EIR and MME/SGSN 3GPP TS 29.272Gxa interface PCRF and the BBERF 3GPP TS 23.203Gxb interface Between ePDG and vPCRF 3GPP TS 23.203Gxc interface BPCRF and the BBERF 3GPP TS 23.203SWa interface Between an un-trusted non-3GPP IP access and the 3GPP AAA Server/Proxy 3GPP TS 23402SWd interface Between the 3GPP AAA Proxy and 3GPP AAA Server 3GPP TS 23402SWn interface Between Untrusted Non-3GPP IP Access and ePDG 3GPP TS 23402SWm interface Between the 3GPP AAA Server/Proxy and the ePDG 3GPP TS 23402SWx interface Between the 3GPP AAA Server and the HSS 3GPP TS 23402Sta interface Between a trusted non-3GPP IP access and the 3GPP AAA Server/Proxy 3GPP TS 23402H2 interface Between the 3GPP AAA Server and the HA 3GPP TS 23402Gq’ interface Between AF and RACS ETSI TS 183.017E2 interface Between AF and NASS ETSI TS 283 035E4 interface Between NASS and RACS ETSI TS 283 034E5 interface Between UAAF – UAAF ETSI TS 282 004Re interface Between RCEF and RACS ETSI TS 183 060A4 interface Between CLF and UAAF ETSI TS 282 004Rr interface x-RACF 03196-NGN-R3Zh interface Generic Authentication Architecture (GAA) PKT-SP-29.109Zn interface Generic Authentication Architecture (GAA) PKT-SP-29.109Cx interface CSCF- HSS PKT-SP-29.229Dx interface CSCF- SLF PKT-SP-29.229Pkt-laes-2 interface Session Control Element — DF (electronic surveillance requirements) PKT-SP-ES-INF-I01P-CSCF- PAM Interface Between P-CSCF – PAM PKT-SP-QOS-I02-080425, 3GPP TS 23.203 & TS 29.214Pkt-mm-2 interface Policy Server — CMTS 3GPP TS 29.212 & TS 23.203TC-6 Based on 3GPP Rx MSF-IA-DIAMETER.010-FINALTC-7 Based on 3GPP Ty MSF-IA-DIAMETER.014-FINALTC-8 Based on 3GPP Tx MSF-IA-DIAMETER.013-FINALTC-9 Based on 3GPP Rq MSF-IA-DIAMETER.005-FINALTC-10 Based on 3GPP Gx MSF-IA-DIAMETER.012-FINALTC-11 Based on 3GPP e4 MSF-OA-DIMATER.011-FINALDB-0 Based on 3GPP Cx/Dx MSF-IA-DIAMETER.006-FINALDB-2 Based on 3GPP Sh/Dh MSF-IA-DIAMETER.003-FINALBI-1 Based on 3GPP Rf MSF-IA-BILLING.001-FINALLOC-1 Based on 3GPP e2 MSF-IA.DIAMETER.008-FINALRw interface Between the Policy Decision Physical Entity (PD-PE) and the Policy Enforcement Physical Entity (PE-PE) ITU Q.3303.3Rs interface Between Service Control Physical Entity (SC-PE) and Resource and Admission Control Physical Entity (RAC-PE) ITU Q.3301
