Internet Engineering Task Force (IETF) M. Betts
Request for Comments: 6671 ZTE
Category: Informational November 2012
ISSN: 2070-1721
Internet Engineering Task Force (IETF) M. Betts
Request for Comments: 6671 ZTE
Category: Informational November 2012
ISSN: 2070-1721
Allocation of a Generic Associated Channel Type for ITU-T MPLS Transport Profile Operation, Maintenance, and Administration (MPLS-TP OAM)
为ITU-T MPLS传输配置文件操作、维护和管理（MPLS-TP OAM）分配通用关联信道类型
Abstract
摘要
This document assigns a Generic Associated Channel (G-ACh) Type for carrying ITU-T MPLS Transport Profile Operations, Administration, and Management (MPLS-TP OAM) messages in the MPLS Generic Associated Channel.
本文档指定了一种通用关联信道（G-ACh）类型，用于在MPLS通用关联信道中承载ITU-T MPLS传输配置文件操作、管理和管理（MPLS-TP OAM）消息。
Status of This Memo
关于下段备忘
This document is not an Internet Standards Track specification; it is published for informational purposes.
本文件不是互联网标准跟踪规范；它是为了提供信息而发布的。
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
本文件是互联网工程任务组（IETF）的产品。它代表了IETF社区的共识。它已经接受了公众审查，并已被互联网工程指导小组（IESG）批准出版。并非IESG批准的所有文件都适用于任何级别的互联网标准；见RFC 5741第2节。
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6671.
有关本文件当前状态、任何勘误表以及如何提供反馈的信息，请访问http://www.rfc-editor.org/info/rfc6671.
IESG Note
IESG注释
The IESG notes that the IETF has developed a set of OAM tools for MPLS-TP that have been published as Standards Track RFCs. A list of the relevant RFCs can be found in RFC 6669. The approval of this document and the assignment of an ACh Type does not constitute endorsement by the IETF of the alternate MPLS-TP OAM documented in G.8113.1. The IESG recommends instead that the RFCs noted above should be implemented.
IESG指出，IETF为MPLS-TP开发了一套OAM工具，这些工具已作为标准跟踪RFC发布。相关RFC列表可在RFC 6669中找到。本文件的批准和ACh类型的分配不构成IETF对G.8113.1中记录的替代MPLS-TP OAM的认可。IESG建议实施上述RFC。
Copyright Notice
版权公告
Copyright (c) 2012 IETF Trust and the persons identified as the document authors. All rights reserved.
版权所有（c）2012 IETF信托基金和确定为文件作者的人员。版权所有。
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.
本文件受BCP 78和IETF信托有关IETF文件的法律规定的约束(http://trustee.ietf.org/license-info)自本文件出版之日起生效。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。从本文件中提取的代码组件必须包括信托法律条款第4.e节中所述的简化BSD许可证文本，并提供简化BSD许可证中所述的无担保。
The Transport Profile of MPLS (MPLS-TP) defined in [RFC5654] is a profile of MPLS technology for use in packet transport networks. The MPLS-TP profile includes a set of Operations, Administration, and Management (OAM) tools defined by the IETF [RFC6669] that are used to meet the OAM functional requirements defined in [RFC5860].
[RFC5654]中定义的MPLS传输配置文件（MPLS-TP）是用于分组传输网络的MPLS技术配置文件。MPLS-TP配置文件包括一组由IETF[RFC6669]定义的操作、管理和管理（OAM）工具，用于满足[RFC5860]中定义的OAM功能需求。
ITU-T Recommendation [G.8113.1] documents MPLS-TP OAM. This Recommendation builds upon Ethernet OAM as documented in [Y.1731]. The messages in [G.8113.1] are defined to be carried in a new Generic Associated Channel (G-ACh) Type in the MPLS Generic Associated Channel. In order to carry these messages in an interoperable fashion, a Generic Associated Channel Type from the IANA maintained registry "Pseudowire Associated Channel Types" is to be used.
ITU-T建议[G.8113.1]记录了MPLS-TP OAM。本建议以[Y.1731]中记录的以太网OAM为基础。[G.8113.1]中的消息定义为在MPLS通用关联信道中的新通用关联信道（G-ACh）类型中传输。为了以可互操作的方式传送这些消息，将使用IANA维护的注册表“伪线关联通道类型”中的通用关联通道类型。
To fulfill the request from ITU-T SG15 in [LS370] and to allow deployment of the [G.8113.1] OAM solution without using an experimental G-ACh Type, IANA has assigned a G-ACh Type <0x8902> for use by the ITU-T for [G.8113.1]. This G-ACh Type is known as the "G.8113.1 OAM G-ACh Type".
为了满足[LS370]中ITU-T SG15的请求，并允许在不使用实验性G-ACh类型的情况下部署[G.8113.1]OAM解决方案，IANA已为[G.8113.1]分配了一个G-ACh类型<0x8902>，供ITU-T使用。这种G-ACh类型被称为“G.8113.1 OAM G-ACh类型”。
A number of experts in the IETF do not consider that the development or deployment of a second protocol solution within the same architectural problem space is necessary or advisable [RFC6670].
IETF中的许多专家不认为在相同的架构问题空间内开发或部署第二协议解决方案是必要的或可取的[RFC670]。
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].
本文件中的关键词“必须”、“不得”、“必需”、“应”、“不应”、“应”、“不应”、“建议”、“可”和“可选”应按照[RFC2119]中所述进行解释。
The G-ACh Type assigned by this document MUST only be used for OAM messages, as defined in the ITU-T Recommendation [G.8113.1], carried in the G-ACh. The OAM messages and procedures carried behind this G-ACh Type are restricted to only those that address the OAM functional requirements defined in [RFC5860]. Other message types MUST NOT be carried behind this G-ACh Type.
根据ITU-T建议[G.8113.1]中的定义，本文件分配的G-ACh类型只能用于G-ACh中携带的OAM消息。此G-ACh类型背后携带的OAM消息和过程仅限于满足[RFC5860]中定义的OAM功能需求的消息和过程。此G-ACh类型后面不得携带其他消息类型。
All ITU-T Recommendations are subject to updates by errata,
corrigenda, amendments, or complete revisions. In any update of
[G.8113.1], the G-ACh Type assigned by this document MUST NOT be used
for any functions not identified as OAM functional requirements in
[RFC5860]. An update of [G.8113.1] may use the G-ACh Type assigned
by this document to support the OAM functions identified in
[RFC5860]. When an amendment or complete revision of G.8113.1 is
approved, the reference to [G.8113.1], provided in this document,
should be updated to show the approval date of the new version.
All ITU-T Recommendations are subject to updates by errata,
corrigenda, amendments, or complete revisions. In any update of
[G.8113.1], the G-ACh Type assigned by this document MUST NOT be used
for any functions not identified as OAM functional requirements in
[RFC5860]. An update of [G.8113.1] may use the G-ACh Type assigned
by this document to support the OAM functions identified in
[RFC5860]. When an amendment or complete revision of G.8113.1 is
approved, the reference to [G.8113.1], provided in this document,
should be updated to show the approval date of the new version.
The G-ACh Type assigned by this document may be used on any transport construct that uses the G-ACh, e.g., MPLS-TP Sections, MPLS-TP LSPs, or PWs as described in [G.8113.1].
本文件指定的G-ACh类型可用于使用G-ACh的任何传输结构，如[G.8113.1]中所述的MPLS-TP段、MPLS-TP LSP或PWs。
As noted in [RFC5586], when new G-ACh Types are defined, the "security considerations MUST be described in the relevant associated channel type specification". The IETF takes this opportunity to remind the ITU-T of the need to describe security considerations in [G.8113.1].
如[RFC5586]所述，当定义新的G-ACh类型时，“必须在相关的信道类型规范中说明安全注意事项”。IETF借此机会提醒ITU-T需要在[G.8113.1]中描述安全注意事项。
IANA maintains the "Pseudowire Associated Channel Types" sub-registry of the "Pseudowire Name Spaces (PWE3)" registry.
IANA维护“伪线名称空间（PWE3）”注册表的“伪线关联通道类型”子注册表。
IANA has allocated a new G-ACh Type as follows:
IANA分配了一种新的G-ACh类型，如下所示：
Value Description TLV Follows Reference
----------- ----------------------- ----------- ---------
0x8902 G.8113.1 OAM No [RFC6671]
Value Description TLV Follows Reference
----------- ----------------------- ----------- ---------
0x8902 G.8113.1 OAM No [RFC6671]
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2119]Bradner，S.，“RFC中用于表示需求水平的关键词”，BCP 14，RFC 2119，1997年3月。
[RFC5586] Bocci, M., Ed., Vigoureux, M., Ed., and S. Bryant, Ed., "MPLS Generic Associated Channel", RFC 5586, June 2009.
[RFC5586]Bocci，M.，Ed.，Vigoureux，M.，Ed.，和S.Bryant，Ed.，“MPLS通用关联信道”，RFC 55862009年6月。
[RFC5654] Niven-Jenkins, B., Ed., Brungard, D., Ed., Betts, M., Ed., Sprecher, N., and S. Ueno, "Requirements of an MPLS Transport Profile", RFC 5654, September 2009.
[RFC5654]Niven Jenkins，B.，Ed.，Brungard，D.，Ed.，Betts，M.，Ed.，Sprecher，N.，和S.Ueno，“MPLS传输配置文件的要求”，RFC 56542009年9月。
[RFC5860] Vigoureux, M., Ed., Ward, D., Ed., and M. Betts, Ed., "Requirements for Operations, Administration, and Maintenance (OAM) in MPLS Transport Networks", RFC 5860, May 2010.
[RFC5860]Vigoureux，M.，Ed.，Ward，D.，Ed.，和M.Betts，Ed.，“MPLS传输网络中的操作、管理和维护（OAM）要求”，RFC 58602010年5月。
[G.8113.1] ITU-T Recommendation G.8113.1/Y.1372.1, "Operations, Administration and Maintenance mechanism for MPLS-TP in Packet Transport Network (PTN)", 11/2012, http://www.itu.int/rec/T-REC-G.8113.1/en.
[G.8113.1]ITU-T建议G.8113.1/Y.1372.1，“分组传输网络（PTN）中MPLS-TP的操作、管理和维护机制”，2012年11月，http://www.itu.int/rec/T-REC-G.8113.1/en.
[Y.1731] ITU-T Recommendation G.8013/Y.1731, "OAM functions and mechanisms for Ethernet based networks" 07/2011 as updated by Corrigendum 1, 10/2011, and Amendment 1, 05/2012, http://www.itu.int/rec/T-REC-G.8013/en.
[Y.1731]ITU-T建议G.8013/Y.1731，“基于以太网的网络的OAM功能和机制”，2011年7月，经2011年10月勘误表1和2012年5月修订件1更新，http://www.itu.int/rec/T-REC-G.8013/en.
[LS370] "Liaison Statement: LS370 - Current status of Recommendation ITU-T G.8113.1/Y.1372.1, Operations, Administration and Maintenance mechanism for MPLS-TP in Packet Transport Network (PTN)", January 2012, https://datatracker.ietf.org/liaison/1125/.
[LS370]“联络声明：LS370-建议ITU-T G.8113.1/Y.1372.1，分组传输网络（PTN）中MPLS-TP的操作、管理和维护机制的现状”，2012年1月，https://datatracker.ietf.org/liaison/1125/.
[RFC6669] Sprecher, N. and L. Fang, "An Overview of the Operations, Administration, and Maintenance (OAM) Tool Set for MPLS-Based Transport Networks", RFC 6669, July 2012.
[RFC6669]Sprecher，N.和L.Fang，“基于MPLS的传输网络的操作、管理和维护（OAM）工具集概述”，RFC 6669，2012年7月。
[RFC6670] Sprecher, N. and KY. Hong, "The Reasons for Selecting a Single Solution for MPLS Transport Profile (MPLS-TP) Operations, Administration, and Maintenance (OAM)", RFC 6670, July 2012.
[RFC6670]Sprecher，N.和KY.Hong，“为MPLS传输配置文件（MPLS-TP）操作、管理和维护（OAM）选择单一解决方案的原因”，RFC 66702012年7月。
Author's Address
作者地址
Malcolm Betts ZTE
Malcolm Betts中兴通讯
EMail: malcolm.betts@zte.com.cn
EMail: malcolm.betts@zte.com.cn