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INTERNATIONAL TELECOMMUNICATION UNION
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ITU-T
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X.213
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TELECOMMUNICATION
STANDARDIZATION SECTOR
OF ITU
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Amendment 1
(08/97)
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SERIES
X: DATA NETWORKS AND OPEN SYSTEM COMMUNICATION
Open System
Interconnection – Service definitions
Information
technology – Open Systems Interconnection – Network service definition
Amendment 1: Addition of the Internet protocol address format identifier
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ITU-T Recommendation
X.213 – Amendment 1
(Previously CCITT Recommendation)
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ITU-T X-SERIES RECOMMENDATIONS
DATA NETWORKS AND OPEN
SYSTEM COMMUNICATION
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PUBLIC DATA NETWORKS
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X.1–X.199
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Services and facilities
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X.1–X.19
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Interfaces
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X.20–X.49
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Transmission, signalling and
switching
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X.50–X.89
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Network aspects
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X.90–X.149
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Maintenance
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X.150–X.179
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Administrative arrangements
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X.180–X.199
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OPEN SYSTEM INTERCONNECTION
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X.200–X.299
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Model and notation
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X.200–X.209
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Service definitions
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X.210–X.219
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Connection-mode protocol
specifications
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X.220–X.229
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Connectionless-mode protocol
specifications
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X.230–X.239
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PICS proformas
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X.240–X.259
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Protocol Identification
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X.260–X.269
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Security Protocols
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X.270–X.279
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Layer Managed Objects
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X.280–X.289
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Conformance testing
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X.290–X.299
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INTERWORKING BETWEEN NETWORKS
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X.300–X.399
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General
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X.300–X.349
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Satellite data transmission systems
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X.350–X.399
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MESSAGE HANDLING SYSTEMS
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X.400–X.499
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DIRECTORY
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X.500–X.599
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OSI NETWORKING AND SYSTEM ASPECTS
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X.600–X.699
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Networking
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X.600–X.629
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Efficiency
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X.630–X.649
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Naming, Addressing and
Registration
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X.650–X.679
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Abstract Syntax Notation One
(ASN.1)
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X.680–X.699
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OSI MANAGEMENT
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X.700–X.799
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Systems Management framework and
architecture
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X.700–X.709
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Management Communication Service
and Protocol
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X.710–X.719
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Structure of Management
Information
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X.720–X.729
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Management functions
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X.730–X.799
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SECURITY
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X.800–X.849
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OSI APPLICATIONS
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X.850–X.899
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Commitment, Concurrency and
Recovery
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X.850–X.859
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Transaction processing
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X.860–X.879
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Remote operations
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X.880–X.899
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OPEN DISTRIBUTED PROCESSING
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X.900–X.999
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For further details, please
refer to ITU-T List of Recommendations.
INTERNATIONAL STANDARD 8348
ITU-T RECOMMENDATION X.213
INFORMATION TECHNOLOGY – OPEN SYSTEMS INTERCONNECTION
–
NETWORK SERVICE DEFINITION
AMENDMENT 1
Addition of the Internet protocol address format identifier
Summary
This Amendment to Recommendation X.213 defines a new
Address Format Identifier (AFI) for use when Network Service Access Point
(NSAP) addresses and Group Network Addresses (GNAs) are used within Internet
standards.
Source
The ITU-T Recommendation X.213, Amendment 1 was
approved on the 9th of August 1997. The identical text is also published as
ISO/IEC International Standard 8348.
FOREWORD
ITU (International Telecommunication Union) is the
United Nations Specialized Agency in the field of teleðcommuniðcations. The ITU
Telecommunication Standardization Sector (ITU-T) is a permanent organ of the
ITU. The ITU-T is responsible for studying technical, operating and tariff
questions and issuing Recommendations on them with a view to stanðdardðizing telecommunications
on a worldwide basis.
The World Telecommunication Standardization Conference
(WTSC), which meets every four years, establishes the topics for study by the
ITU‑T Study Groups which, in their turn, produce Recommendations on these
topics.
The approval of Recommendations by the Members of the
ITU‑T is covered by the procedure laid down in WTSC Resolution No. 1.
In some areas of information technology which fall
within ITU-T’s purview, the necessary standards are prepared on a collaborative
basis with ISO and IEC.
NOTE
In this Recommendation, the expression
"Administration" is used for conciseness to indicate both a
telecommunication administration and a recognized operating agency.
INTELLECTUAL
PROPERTY RIGHTS
The ITU draws attention to the possibility that the
practice or implementation of this Recommendation may involve the use of a
claimed Intellectual Property Right. The ITU takes no position concerning the
evidence, validity or applicability of claimed Intellectual Property Rights,
whether asserted by ITU members or others outside of the Recommendation
development process.
As of the date of approval of this Recommendation, the
ITU had received notice of intellectual property, protected by patents, which
may be required to implement this Recommendation. However, implementors are
cautioned that this may not represent the latest information and are therefore
strongly urged to consult the TSB patent database.
Æ ITU 1998
All rights reserved. No part of this publication may
be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing
from the ITU.
CONTENTS
Page
1) Subclause
2.3................................................................................................................................................................................ 1
2) Subclause
A.5.2.1.2...................................................................................................................................................................... 1
3) New
subclause A.5.2.1.2.8.......................................................................................................................................................... 1
4) Subclause
A.5.2.3......................................................................................................................................................................... 1
5) Subclause
B.1................................................................................................................................................................................ 1
INTERNATIONAL STANDARD
ISO/IEC
8348 : 1996/Amd.1 : 1998 (E)
ITU-T RECOMMENDATION
INFORMATION TECHNOLOGY
– OPEN SYSTEMS INTERCONNECTION
–
NETWORK SERVICE DEFINITION
AMENDMENT 1
Addition of the Internet protocol address format
identifier
Add a new reference:
– Internet
Standard 00002, Assigned Numbers.
In Table A.1, replace the second line, first column, 10-19, 20-29, 30-35, with:
Replace the third line, first column, 36-39, 40-49, 50-59, with:
Add a new row to the beginning of Table A.4:
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IANA
ICP
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34
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35
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/////////////////////
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/////////////////////
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Add a new subclause, A.5.2.1.2.8, after A.5.2.1.2.7:
A.5.2.1.2.8 Internet
Protocol IDI format
The IDI consists of a 4-digit numeric code
identifying an Internet Code Point (ICP) allocated according to Internet
Assigned Number Authority (IANA) Internet Standard 00002, Assigned Numbers. The
IANA ICP identifies a particular Internet Protocol (IP) addressing format.
Add a new row to the end of Table A.5:
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IANA
ICP
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34
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17
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/////////////////////
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/////////////////////
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Add a new paragraph to the end of this subclause:
The IANA ICP format is included so as to
allow for Internet Assigned Number Authority (IANA) to be an authority for the
assignment of NSAP addresses and Group Network Addresses (GNAs) according to
the hierarchy appropriate for the Internet (which is not always based on
considerations of geographical or national boundaries). The IANA ICP identifies
a particular Internet Protocol (IP) addressing format. The IANA ICP format is
intended to support the assignment of NSAP and GNA addresses for use within
Internet standards.