Network Working Group D. Sun
Request for Comments: 5431 Alcatel-Lucent
Category: Informational March 2009
Network Working Group D. Sun
Request for Comments: 5431 Alcatel-Lucent
Category: Informational March 2009
Diameter ITU-T Rw Policy Enforcement Interface Application
Diameter ITU-T Rw策略实施接口应用程序
Status of This Memo
关于下段备忘
This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.
本备忘录为互联网社区提供信息。它没有规定任何类型的互联网标准。本备忘录的分发不受限制。
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版权公告
Copyright (c) 2009 IETF Trust and the persons identified as the document authors. All rights reserved.
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本文件受BCP 78和IETF信托在本文件出版之日生效的与IETF文件有关的法律规定的约束(http://trustee.ietf.org/license-info). 请仔细阅读这些文件，因为它们描述了您对本文件的权利和限制。
Abstract
摘要
This document describes the need for a new pair of IANA Diameter Command Codes to be used in a vendor-specific new application, namely for the ITU-T Rec. Q.3303.3 - Rw interface used to send a request/ response for authorizing network Quality of Service (QoS) resources and policy enforcement in a network element, as one of the recommendations of the International Telecommunication Union - Telecommunication Standardization Sector (ITU-T).
本文件描述了在特定于供应商的新应用程序中使用一对新的IANA Diameter命令代码的需求，即ITU-T Rec.Q.3303.3-Rw接口，用于发送请求/响应，以授权网元中的网络服务质量（QoS）资源和策略实施，作为国际电信联盟-电信标准化部门（ITU-T）的建议之一。
Table of Contents
目录
1. Introduction ....................................................2
2. Terminology .....................................................2
3. Diameter ITU-T Rw Policy Enforcement Interface ..................3
4. IANA Considerations .............................................3
4.1. Application Identifier .....................................3
4.2. Command Codes ..............................................4
4.3. AVP Codes ..................................................4
5. Security Considerations .........................................4
6. Acknowledgements ................................................4
7. References ......................................................5
7.1. Normative References .......................................5
7.2. Informative References .....................................5
1. Introduction ....................................................2
2. Terminology .....................................................2
3. Diameter ITU-T Rw Policy Enforcement Interface ..................3
4. IANA Considerations .............................................3
4.1. Application Identifier .....................................3
4.2. Command Codes ..............................................4
4.3. AVP Codes ..................................................4
5. Security Considerations .........................................4
6. Acknowledgements ................................................4
7. References ......................................................5
7.1. Normative References .......................................5
7.2. Informative References .....................................5
This document summarizes the use of Diameter codes in a newly defined realization of a specification for authorizing network QoS resources and policy enforcement [Q.3303.3]. A new pair of Command Codes have been assigned by IANA. This document summarizes the uses of newly defined Diameter codes (Command Codes, AVP, vendor-specific application id). When combined with the Diameter Base protocol, this application's specification [Q.3303.3] satisfies the requirements of [Y.2111] of the International Telecommunication Union - Telecommunication Standardization Sector (ITU-T) to send a request and receive a response for controlling the policy enforcement.
本文档总结了Diameter代码在新定义的授权网络QoS资源和策略实施规范实现中的使用[Q.3303.3]。IANA分配了一对新的命令代码。本文档总结了新定义直径代码（命令代码、AVP、供应商特定应用程序id）的使用。当与Diameter基本协议结合使用时，本应用程序规范[Q.3303.3]满足国际电信联盟-电信标准化部门（ITU-T）的[Y.2111]要求，以发送请求并接收响应以控制策略实施。
The Diameter realization of this application assumes the use of the Diameter Base protocol, as per RFC 3588, and extends it only for a specific application using a vendor-id (ITU-T), a vendor-specific application ID (16777256), a new Command Code (315), and new attribute-value pairs (AVPs), which are defined in the vendor-specific namespace.
根据RFC 3588，该应用程序的Diameter实现假定使用Diameter基本协议，并仅使用供应商id（ITU-T）、供应商特定应用程序id（16777256）、新命令代码（315）和供应商特定命名空间中定义的新属性值对（AVP）将其扩展到特定应用程序。
This application is used to authorize network QoS resources and policy enforcement (including the amount of bandwidth, QoS class, and traffic flow processing) as an extension of the Diameter application [RFC4006]. The request is based on the Diameter extensibility discussions in the DIME WG that led to the conclusion that it is better to define new Command Codes whenever the ABNF of a command is modified by adding, removing, or semantically changing a required AVP in order to avoid interoperability problems. The document is utilizing authorization and accounting functionality, and the entire exchange is related to users utilizing applications that require QoS treatment. This approach is consistent with the practice and experience gained since the publication of [RFC3588] (see for example [RFC5224]), which is now under revision by the DIME Working Group who will provide a revised set of recommendations and procedures for IANA considerations [DIME].
此应用程序用于授权网络QoS资源和策略实施（包括带宽量、QoS等级和流量处理），作为Diameter应用程序的扩展[RFC4006]。该请求基于DIME WG中关于DIAMER扩展性的讨论，该讨论得出结论，即无论何时通过添加、删除或语义更改所需AVP来修改命令的ABNF，最好定义新的命令代码，以避免互操作性问题。该文档正在利用授权和记帐功能，整个exchange与使用需要QoS处理的应用程序的用户相关。该方法与[RFC3588]（例如参见[RFC5224]）出版以来的实践和经验相一致，DIME工作组目前正在对其进行修订，该工作组将为IANA考虑事项[DIME]提供一套修订后的建议和程序。
In the base Diameter specification [RFC3588], Section 1.4 defines most of the terminology used in this document. Additionally, the terms and acronyms defined in Section 3 and Section 4 of [Q.3303.3] are used in this document.
在底座直径规范[RFC3588]中，第1.4节定义了本文件中使用的大部分术语。此外，本文件中使用了[Q.3303.3]第3节和第4节中定义的术语和首字母缩略词。
The Rw interface is used for information exchange to apply policy decisions between the Policy Decision Point (PDP, i.e., in the ITU-T term, Policy Decision Functional Entity (PD-FE)) and the Policy Enforcement Point (PEP, i.e., in the ITU-T term, Policy Enforcement Functional Entity (PE-FE)).
Rw接口用于信息交换，以在策略决策点（PDP，即在ITU-T术语中的策略决策功能实体（PD-FE））和策略实施点（PEP，即在ITU-T术语中的策略实施功能实体（PE-FE））之间应用策略决策。
The interface allows the PDP to push the authorized admission decisions to the PEP. It also allows the PEP to request the authorization of admission decisions from the PDP when path-coupled resource reservation mechanisms are in use. The main information conveyed by the Rw interface is:
该接口允许PDP将授权的准入决定推送到PEP。当使用路径耦合资源预留机制时，它还允许PEP从PDP请求许可决定的授权。Rw接口传递的主要信息是：
o Resources reservation and/or allocation requests for media flows;
o 媒体流的资源预留和/或分配请求；
o QoS handling requests such as packet marking and policing;
o QoS处理请求，如数据包标记和策略；
o Gate control (opening/closing) requests for a media flow;
o 介质流的闸门控制（打开/关闭）请求；
o NAPT and NAT traversal requests for the necessary address mapping information;
o NAPT和NAT遍历请求必要的地址映射信息；
o Resource usage information requests and reports for media flows.
o 媒体流的资源使用信息请求和报告。
The detailed descriptions of the Diameter Policy Enforcement interface ITU-T Rw can be found in Section 5 of [Q.3303.3].
Diameter策略实施接口ITU-T Rw的详细说明见[Q.3303.3]的第5节。
This section provides guidance to the Internet Assigned Numbers Authority (IANA) regarding registration of values related to the Diameter protocol, in accordance with BCP 26 [RFC5226].
根据BCP 26[RFC5226]，本节为互联网分配号码管理局（IANA）提供了有关Diameter协议相关值注册的指南。
This document defines values in the namespaces that have been created and defined in [RFC3588]. The IANA Considerations section of that document details the assignment criteria. Values assigned in this document, or by future IANA action, must be coordinated within this shared namespace.
本文档定义了在[RFC3588]中创建和定义的名称空间中的值。该文件的IANA注意事项部分详细说明了分配标准。本文档中分配的值或未来IANA操作分配的值必须在此共享命名空间中进行协调。
A vendor-specific application ID (16777256) for the application of [Q.3303.3] has been assigned by the IANA.
IANA已为[Q.3303.3]的应用分配了供应商特定的应用程序ID（16777256）。
Registry:
ID values Name Reference
----------------------------------------------------------
16777256 ITU-T Rw 7.2.1 of ITU-T Q.3303.3
Registry:
ID values Name Reference
----------------------------------------------------------
16777256 ITU-T Rw 7.2.1 of ITU-T Q.3303.3
IANA has allocated Command Code values for the following commands defined in Section 7.4 of [Q.3303.3] from the Command Code namespace defined in [RFC3588].
IANA已从[RFC3588]中定义的命令代码命名空间为[Q.3303.3]第7.4节中定义的以下命令分配了命令代码值。
Registry:
Code Value Name Reference
------------------------------------------------------------------
315 Policy-Install-Request(PIR) 7.4.1 of ITU-T Q.3303.3
315 Policy-Install-Answer (PIA) 7.4.2 of ITU-T Q.3303.3
Registry:
Code Value Name Reference
------------------------------------------------------------------
315 Policy-Install-Request(PIR) 7.4.1 of ITU-T Q.3303.3
315 Policy-Install-Answer (PIA) 7.4.2 of ITU-T Q.3303.3
The values 1010~1018 are assigned by the ITU-T to the following AVPs within the ITU-T vendor-ID 11502 namespace: PI-Request-Type AVP, PI-Request-Number AVP, Traffic-Descriptor-UL AVP, Traffic-Descriptor-DL AVP, Maximum-Burst-Size AVP, Committed-Data-Rate AVP, Committed-Burst-Size AVP, Excess-Burst-Size, Removal-Cause AVP.
值1010~1018由ITU-T分配给ITU-T供应商ID 11502命名空间内的以下AVP：PI请求类型AVP、PI请求编号AVP、流量描述符UL AVP、流量描述符DL AVP、最大突发大小AVP、提交数据速率AVP、提交突发大小AVP、多余突发大小、删除原因AVP。
See Table 1/Q.3303.3 in Section 7.3.1 of [Q.3303.3] for detailed information on AVP codes, value types, and flag rules.
有关AVP代码、值类型和标志规则的详细信息，请参见[Q.3303.3]第7.3.1节中的表1/Q.3303.3。
This document describes the Diameter Policy Enforcement Application. It builds on top of the Diameter Base protocol and the same security considerations described in [RFC3588] are applicable to this document. No further extensions are required beyond the security mechanisms offered by [RFC3588].
本文档介绍Diameter策略实施应用程序。它建立在Diameter基础协议之上，[RFC3588]中描述的相同安全注意事项适用于本文档。除[RFC3588]提供的安全机制外，无需进一步扩展。
The author would like to thank Dan Romascanu, Hannes Tschofenig, and Tina Tsou for their help and support. Finally, the author would like to thank Alcatel-Lucent, as most of the effort put into this document was done while he was in their employ.
作者要感谢Dan Romascanu、Hannes Tschofenig和Tina Tsou的帮助和支持。最后，作者要感谢阿尔卡特朗讯公司，因为在这份文件中投入的大部分精力都是在他受雇期间完成的。
[Q.3303.3] ITU-T Recommendation Q.3303.3, "Resource control protocol no. 3 (rcp3): Protocol at the Rw interface between the Policy Decision Physical Entity (PD-PE) and the Policy Enforcement Physical Entity (PE-PE): Diameter", 2008.
[Q.3303.3]ITU-T建议Q.3303.3，“第3号资源控制协议（rcp3）：政策决策实体（PD-PE）和政策执行实体（PE-PE）之间Rw接口的协议：直径”，2008年。
[RFC3588] Calhoun, P., Loughney, J., Guttman, E., Zorn, G., and J. Arkko, "Diameter Base Protocol", RFC 3588, September 2003.
[RFC3588]Calhoun，P.，Loughney，J.，Guttman，E.，Zorn，G.，和J.Arkko，“直径基础协议”，RFC 3588，2003年9月。
[DIME] Fajardo, V., Arkko, J., Loughney, J., and G. Zorn, "Diameter Base Protocol", Work in Progress, November 2008.
[DIME]Fajardo，V.，Arkko，J.，Loughney，J.，和G.Zorn，“直径基础协议”，正在进行的工作，2008年11月。
[RFC4006] Hakala, H., Mattila, L., Koskinen, J-P., Stura, M., and J. Loughney, "Diameter Credit-Control Application", RFC 4006, August 2005.
[RFC4006]Hakala，H.，Mattila，L.，Koskinen，J-P.，Stura，M.，和J.Loughney，“直径信用控制应用”，RFC 4006，2005年8月。
[RFC5224] Brenner, M., "Diameter Policy Processing Application", RFC 5224, March 2008.
[RFC5224]Brenner，M.，“直径策略处理应用”，RFC 52242008年3月。
[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008.
[RFC5226]Narten，T.和H.Alvestrand，“在RFCs中编写IANA注意事项部分的指南”，BCP 26，RFC 5226，2008年5月。
[Y.2111] ITU-T Recommedation Y.2111, "Resource and admission control functions in Next Generation Networks", September 2006.
[Y.2111]ITU-T建议Y.2111，“下一代网络中的资源和准入控制功能”，2006年9月。
Author's Address
作者地址
Dong Sun Alcatel-Lucent 600 Mountain Ave Murray Hill, NJ 07974 USA
东太阳阿尔卡特朗讯美国新泽西州默里山山道600号，邮编07974
Phone: +1 908 582 2617
EMail: dongsun@alcatel-lucent.com
Phone: +1 908 582 2617
EMail: dongsun@alcatel-lucent.com