Network Working Group G. Huston
Request for Comments: 5396 G. Michaelson
Category: Standards Track APNIC
December 2008
Network Working Group G. Huston
Request for Comments: 5396 G. Michaelson
Category: Standards Track APNIC
December 2008
Textual Representation of Autonomous System (AS) Numbers
自治系统（AS）编号的文本表示
Status of This Memo
关于下段备忘
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
本文件规定了互联网社区的互联网标准跟踪协议，并要求进行讨论和提出改进建议。有关本协议的标准化状态和状态，请参考当前版本的“互联网官方协议标准”（STD 1）。本备忘录的分发不受限制。
Copyright Notice
版权公告
Copyright (c) 2008 IETF Trust and the persons identified as the document authors. All rights reserved.
版权所有（c）2008 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.
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/ 许可证信息）在本文件发布之日生效。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。
Abstract
摘要
A textual representation for Autonomous System (AS) numbers is defined as the decimal value of the AS number. This textual representation is to be used by all documents, systems, and user interfaces referring to AS numbers.
自治系统（AS）编号的文本表示定义为AS编号的十进制值。所有文档、系统和用户界面都将使用此文本表示形式，并将其称为数字。
Table of Contents
目录
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Taxonomy of Representation Formats . . . . . . . . . . . . . . 2
3. Representation of AS Number Values . . . . . . . . . . . . . . 2
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 3
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 3
7. Informative References . . . . . . . . . . . . . . . . . . . . 3
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Taxonomy of Representation Formats . . . . . . . . . . . . . . 2
3. Representation of AS Number Values . . . . . . . . . . . . . . 2
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 3
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 3
7. Informative References . . . . . . . . . . . . . . . . . . . . 3
A textual representation for Autonomous System (AS) numbers is defined as the decimal value of the AS number. This textual representation is to be used by all documents, systems, and user interfaces referring to AS numbers.
自治系统（AS）编号的文本表示定义为AS编号的十进制值。所有文档、系统和用户界面都将使用此文本表示形式，并将其称为数字。
This document notes a number of potential representation formats and proposes the adoption of a decimal value notation for AS numbers, or "asplain" according to the representation taxonomy described here.
本文档记录了许多潜在的表示格式，并根据此处描述的表示分类法，建议采用十进制值表示法作为数字，或“asplain”。
A taxonomy of representation for AS numbers is as follows:
AS编号表示的分类如下所示：
asplain refers to a syntax scheme of representing all AS numbers using decimal integer notation. Using asplain notation, an AS number of value 65526 would be represented as the string "65526" and an AS number of value 65546 would be represented as the string "65546".
asplain是一种使用十进制整数表示法将所有数字表示为数字的语法方案。使用asplain表示法，值为65526的AS编号将表示为字符串“65526”，值为65546的AS编号将表示为字符串“65546”。
asdot+ refers to a syntax scheme of representing all AS numbers using a notation of two integer values joined by a period character: <high order 16-bit value in decimal>.<low order 16-bit value in decimal>. Using asdot+ notation, an AS number of value 65526 would be represented as the string "0.65526" and an AS number of value 65546 would be represented as the string "1.10".
asdot+是一种语法方案，使用两个整数值加上句点字符的表示法来表示所有AS数字：<十进制中的高阶16位值><十进制中的低阶16位值>。使用asdot+表示法，值为65526的AS编号将表示为字符串“0.65526”，值为65546的AS编号将表示为字符串“1.10”。
asdot refers to a syntax scheme of representing AS number values less than 65536 using asplain notation and representing AS number values equal to or greater than 65536 using asdot+ notation. Using asdot notation, an AS number of value 65526 would be represented as the string "65526" and an AS number of value 65546 would be represented as the string "1.10".
asdot是一种语法方案，使用asplain符号表示小于65536的数值，使用asdot+符号表示等于或大于65536的数值。使用asdot表示法，值为65526的AS数将表示为字符串“65526”，值为65546的AS数将表示为字符串“1.10”。
To avoid confusion, a single textual notation is useful for documentation, configuration systems, reports, and external tools and information repositories. The decimal value representation, or "asplain" is proposed as the textual notation to use for AS numbers.
为了避免混淆，单个文本符号对于文档、配置系统、报告以及外部工具和信息存储库非常有用。十进制值表示法，或“asplain”被提议用作as数字的文本表示法。
The "asplain" representation represents the number as its decimal value, without any field delimiter, corresponding to the lack of any internal structure required by the use of AS numbers in the inter-domain routing context.
“asplain”表示法将数字表示为其十进制值，没有任何字段分隔符，对应于在域间路由上下文中使用as数字时缺少任何内部结构。
IANA Registries should use decimal representation ("asplain") for AS numbers.
IANA注册中心应使用十进制表示法（“asplain”）表示AS编号。
This document does not refer to matters associated with security of routing systems.
本文件不涉及与路由系统安全相关的事项。
The terminology of "asplain", "asdot", and "asdot+" was originally devised and described by Juergen Kammer in January 2007 [KAMMER2007].
“asplain”、“asdot”和“asdot+”的术语最初由Juergen Kammer于2007年1月设计和描述[KAMMER2007]。
[KAMMER2007] Kammer, J., "AS Number Formats", Jan 2007, <http://quagga.ncc.eurodata.de/asnumformat.html>.
[KAMMER2007]Kammer，J.，“数字格式”，2007年1月<http://quagga.ncc.eurodata.de/asnumformat.html>.
Authors' Addresses
作者地址
Geoff Huston Asia Pacific Network Information Centre
杰夫休斯顿亚太网络信息中心
EMail: gih@apnic.net
EMail: gih@apnic.net
George Michaelson Asia Pacific Network Information Centre
乔治·迈克尔森亚太网络信息中心
EMail: ggm@apnic.net
EMail: ggm@apnic.net