1、 ETSI TS 183 026 V3.1.1 (2010-03)Technical Specification Telecommunications and Internet converged Services andProtocols for Advanced Networking (TISPAN);Resource and Admission Control;Protocol for QoS reservation information exchange betweenthe Service Policy Decision Function (SPDF) and theAccess-
2、Resource and Admission Control Function (A-RACF)in the Resource and Protocol specificationETSI ETSI TS 183 026 V3.1.1 (2010-03)2Reference RTS/TISPAN-03210-NGN-R3 Keywords interface, stage 3 ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 4
3、7 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic v
4、ersion or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI
5、 Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, plea
6、se send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunicat
7、ions Standards Institute 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Part
8、ners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 183 026 V3.1.1 (2010-03)3Contents Intellectual Property Rights 5g3Forewo
9、rd . 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 Rq interface 8g34.1 Overview 8g34.2 Rq reference model 9g34.3 Functional elements and capabilities 9g34.3.1 Service Policy D
10、ecision Function (SPDF) 9g34.3.2 Access-Resource Admission Control Function (A-RACF) 9g35 Resource control procedures 9g35.1 Procedures at the SPDF 11g35.1.1 Initial Reservation for a Session . 11g35.1.2 Session Modification 12g35.1.3 Session Termination . 13g35.1.4 Event notification 13g35.2 Proced
11、ures at the A-RACF . 14g35.2.1 Initial Reservation for a Session . 14g35.2.2 Session Modification 16g35.2.3 Session Termination . 16g35.2.4 Event Notification . 17g36 Rq protocol . 17g36.1 Protocol support . 17g36.1.1 Advertising Application Support 17g36.1.2 Transport protocol 17g36.1.3 Securing Rq
12、 messages 18g36.1.4 Use of sessions 18g36.2 Rq messages . 18g36.2.1 AA-Request (AAR) Command . 18g36.2.2 AA-Answer (AAA) Command . 18g36.2.3 Re-Auth-Request (RAR) Command . 19g36.2.4 Re-Auth-Answer (RAA) Command . 19g36.2.5 Session-Termination-Request (STR) Command . 20g36.2.6 Session-Termination-An
13、swer (STA) Command . 20g36.2.7 Abort-Session-Request (ASR) Command 20g36.2.8 Abort-Session-Answer (ASA) Command . 21g36.3 Experimental-Result-Code AVP values . 21g36.3.1 Experimental-Result-Code AVP values imported from TS 129 209 21g36.3.2 Experimental-Result-Code AVP values defined in the present
14、document 21g36.4 AVPs 22g36.4.1 AVPs defined in the present document . 22g36.4.2 AVPs imported from TS 129 209 . 22g36.4.3 AVPs imported from TS 183 017 . 23g36.4.4 AVPs imported from ES 283 034 . 23g36.4.5 Abort-Cause AVP . 24g36.4.6 AF-Application-Identifier AVP 24g36.4.7 Flow-Description AVP . 24
15、g36.4.8 Flow-Grouping AVP. 25g3ETSI ETSI TS 183 026 V3.1.1 (2010-03)46.4.9 Flow-Number AVP . 25g36.4.10 Flows AVP 25g36.4.11 Flow-Status AVP 25g36.4.12 Flow-Usage AVP 26g36.4.13 Specific-Action AVP 26g36.4.14 Max-Requested-Bandwidth-DL AVP . 27g36.4.15 Max-Requested-Bandwidth-UL AVP . 27g36.4.16 Med
16、ia-Component-Description AVP . 27g36.4.17 Media-Component-Number AVP . 27g36.4.18 Media-Sub-Component AVP 27g36.4.19 Media-Type AVP 28g36.4.20 Reservation-Class AVP 28g36.4.21 Globally-Unique-Address AVP 28g36.4.22 Address-Realm AVP. 28g36.4.23 Reservation-Priority AVP . 29g36.4.24 Session-Bundle-Id
17、 AVP 29g36.4.25 AF-Charging-Identifier AVP 29g36.4.26 Service-Class AVP . 29g36.4.27 Transport-Class AVP 30g36.4.28 Overbooking-indicator AVP . 30g36.4.29 Authorization-Package-Id AVP 30g36.4.30 Media-Authorization-Context-Id AVP . 30g36.4.31 Logical-Access-ID AVP . 30g3Annex A (informative): Resour
18、ce reservation flow states maintained by A-RACF . 31g3Annex B (informative): Change history . 33g3History 34g3ETSI ETSI TS 183 026 V3.1.1 (2010-03)5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining
19、to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat.
20、Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the upd
21、ates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN). ETSI ETSI T
22、S 183 026 V3.1.1 (2010-03)61 Scope The present document provides the stage 3 specification of the Rq interface. The functional requirements and the stage 2 specifications of the Rq interface are contained in ES 282 001 1 and ES 282 003 2. The Rq interface is the interface between the Service Policy
23、Decision Function (SPDF) and the Access - Resource and Admission Control Function (A-RACF) and is used for QoS resource reservation information exchange between the SPDF and the A-RACF. Via the Rq interface the SPDF issues requests for resources in the access network, indicating IP QoS characteristi
24、cs. The A-RACF uses the IP QoS information to perform admission control and indicate to the SPDF via the Rq interface its admission control decisions. Due to the possible business roles in an access environment, the SPDF may be either in the same domain or in a different domain as the A-RACF. The pr
25、esent document defines: The information to be exchanged between SPDF and A-RACF over the Rq interface. An Rq interface definition based on the Diameter protocol. In situations where no generic overload control mechanism is used on the Rq interface, the interface shall only be capable of supporting a
26、 one-to-one relationship between the A-RACF and SPDF (i.e. one SPDF may only contact one A-RACF, and that A-RACF may only contact that same SPDF). Overload control need not be supported in this situation due to the fact that it should be possible to traffic engineer the capabilities of the two entit
27、ies, so that the capacity of one entity matches the capacity of the other. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may
28、be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found
29、to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents ar
30、e indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI ES 282 001 (V3.y.z): “Telecommunications and Internet converged Ser
31、vices and Protocols for Advanced Networking (TISPAN); NGN Functional Architecture“. 2 ETSI ES 282 003 (V3.y.z): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control Sub-System (RACS): Functional Architecture“. ETSI ETSI TS
32、 183 026 V3.1.1 (2010-03)73 ETSI ES 282 004 (V3.y.z): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Functional Architecture; Network Attachment Sub-System (NASS)“. 4 ETSI ES 283 034 (V2.y.z): “Telecommunications and Internet converged Service
33、s and Protocols for Advanced Networking (TISPAN); Network Attachment Sub-System (NASS); e4 interface based on the DIAMETER protocol“. 5 ETSI TS 183 017 (Release 3): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control: DIA
34、METER protocol for session based policy set-up information exchange between the Application Function (AF) and the Service Policy Decision Function (SPDF); Protocol specification“. 6 ETSI TS 129 207: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (U
35、MTS); Policy control over Go interface (3GPP TS 29.207)“. 7 ETSI TS 129 209: “Universal Mobile Telecommunications System (UMTS); Policy control over Gq interface (3GPP TS 29.209)“. 8 ETSI TS 133 210: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (
36、UMTS); 3G security; Network Domain Security (NDS); IP network layer security (3GPP TS 33.210)“. 9 IETF RFC 2960: “Stream Control Transmission Protocol“. 10 IETF RCF 3309: “Stream Control Transmission Protocol (SCTP) Checksum Change“. 11 IETF RFC 3588: “Diameter Base Protocol“. 12 IETF RFC 4005: “Dia
37、meter Network Access Server Application“. 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (
38、including any amendments) applies. Not applicable. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Attribute-Value Pair (AVP): corresponds to an Information Element in a Diameter message NOTE: See RFC 3588 11. hard-
39、state reservation: type of reservation whereby the requested resources are reserved without time limit NOTE: Hard-state reservations are terminated if the DIAMETER session is terminated. soft-state reservation: type of reservation whereby the requested resources are reserved for a finite amount of t
40、ime, soft-state reservations are terminated when the DIAMETER session is terminated ETSI ETSI TS 183 026 V3.1.1 (2010-03)83.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AAA AA-Answer AAR AA-Request AF Application Function A-RACF Access-Resource and Adm
41、ission Control Function ASA Abort-Session-Answer ASP Application Service Provider ASR Abort-Session-Request ATM VC Asynchronous Transfer Mode Virtual Circuit AVP Attribute-Value Pair BGF Border Gateway Function BTF Basic Transport Functions IANA Internet Assigned Numbers Authority IP Internet Protoc
42、ol IP-CAN IP-Connectivity Access Network NASREQ Network Access Server REQuirements RAA Re-Auth-Answer RACF Resource and Admission Control Function RACS Resource and Admission Control Subsystem RAR Re-Auth-Request RCEF Residual Code Excited Field RTCP Real-time Transport Control Protocol RTP Real-tim
43、e Transport Protocol SDI Session Description Information SPDF Service-based Policy Decision Function STA Session-Termination-Answer STR Session-Termination-RequestUDP User Datagram Protocol xDSL x Digital Subscriber Line 4 Rq interface 4.1 Overview In the following clause, the Rq interface is descri
44、bed in detail concerning what type of information that needs to be transported between the SPDF and the A-RACF. The functional requirements and the stage 2 specifications of the Rq interface are contained in ES 282 001 1 and ES 282 003 2. Due to the possible business roles in an access environment,
45、an SPDF instance may be either in the same domain or in a different domain as the A-RACF instance with which it interacts. This means that Rq reference point should support both the case when an SPDF instance and the A-RACF instance with which it interacts are located in the same domain, and when th
46、ey are located in different domains. The Rq reference point is an open vendor interface and an open operator interface. One A-RACF instance shall be able to serve more than one SPDF instance and one given SPDF instance may interact with a number of A-RACF instances, although on a session basis, it s
47、hall interact with only a single A-RACF instance. ETSI ETSI TS 183 026 V3.1.1 (2010-03)94.2 Rq reference model The Rq interface is defined between the SPDF and the A-RACF. Rr x - RACF AF SPDF BGF RCEF NASS Re Ia Gq Rd , Ri Rq e4 Transport Processing Functions RACS BTF Rf Figure 1: Rq interface archi
48、tecture model 4.3 Functional elements and capabilities 4.3.1 Service Policy Decision Function (SPDF) The SPDF is a functional element that coordinates the resource reservations requests received from by the AF. The SPDF makes policy decisions using policy rules and forwards the session and media rel
49、ated information obtained from the AF to the A-RACF via the Rq reference point for admission control purposes. The functionality of the SPDF is further detailed in ES 282 003 2. 4.3.2 Access-Resource Admission Control Function (A-RACF) The A-RACF is a functional element performing resource reservation admission control and network policy assembly. The A-RACF receives resource reservation requests from the SPDF via the Rq reference point. The functionality of the SPDF is further detailed in ES 282 003 2. 5 Resource control pr
