ISO/IEC/IEEE 8802-1Q:2020/Amd 2:2021
(Amendment)Telecommunications and exchange between information technology systems — Requirements for local and metropolitan area networks — Part 1Q: Bridges and bridged networks — Amendment 2: YANG data model
Telecommunications and exchange between information technology systems — Requirements for local and metropolitan area networks — Part 1Q: Bridges and bridged networks — Amendment 2: YANG data model
Télécommunications et échange entre systèmes informatiques — Exigences pour les réseaux locaux et métropolitains — Partie 1Q: Ponts et réseaux pontés — Amendement 2
General Information
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Standards Content (Sample)
INTERNATIONAL ISO/IEC/
STANDARD IEEE
8802-1Q
Second edition
2020-08
AMENDMENT 2
2021-09
Telecommunications and exchange
between information technology
systems — Requirements for local and
metropolitan area networks —
Part 1Q:
Bridges and bridged networks
AMENDMENT 2: YANG data model
Télécommunications et échange entre systèmes informatiques —
Exigences pour les réseaux locaux et métropolitains —
Partie 1Q: Ponts et réseaux pontés
AMENDEMENT 2
Reference number
ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
©
IEEE 2018
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Foreword
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IEEE Std 802.1Qcp™-2018
(Amendment to
IEEE Std 802.1Q™-2018)
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks—
Amendment 30: YANG Data Model
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 14 June 2018
IEEE-SA Standards Board
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Abstract: A YANG data model in support of configuration and operational status information for a
subset of Bridging capabilities is provided in this amendment to IEEE Std 802.1Q™-2018.
®
Keywords: Bridged Local Area Networks, IEEE 802 , IEEE 802.1Q™, IEEE 802.1Qcp™, local
area networks (LANs), MAC Bridges, metropolitan area networks, Virtual Bridged Local Area
Networks (virtual LANs), YANG
The Institute of Electrical and Electronics Engineers, Inc.
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Copyright © 2018 by The Institute of Electrical and Electronics Engineers, Inc.
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Participants
At the time of approval of this standard, the IEEE 802.1 Working Group had the following membership:
Glenn Parsons, Chair
John Messenger, Vice Chair
János Farkas, Chair, Time-Sensitive Networking Task Group
Marc Holness, Editor
Ralf Assmann Marina Gutierrez Maximilian Riegel
Shenghua Bao Stephen Haddock Jessy V. Rouyer
Jens Bierschenk Mark Hantel Atsushi Sato
Steinar Bjornstad Lokesh Kabra Frank Schewe
Christian Boiger Michael Karl Michael Seaman
Paul Bottorff Stephan Kehrer Johannes Specht
Radhakrishna Canchi Hajime Koto Patricia Thaler
David Chen Christophe Mangin Paul Unbehagen
Feng Chen Scott Mansfield Xinyuan Wang
Weiying Cheng James McIntosh Tongtong Wang
Paul Congdon Tero Mustala Hao Wang
Rodney Cummings Tomoki Ohsawa Karl Weber
Hesham Elbakoury Donald R. Pannell Brian Weis
Norman Finn Walter Pienciak Jordon Woods
Geoffrey Garner Michael Potts Takahiro Yamaura
Eric W. Gray Wei Qiu Xiang Yu
Craig Gunther Karen Randall Nader Zein
The following members of the individual balloting committee voted on this standard. Balloters may have
voted for approval, disapproval, or abstention.
Randall Groves
Thomas Alexander Charles Moorwood
Stephen Haddock Nick S. A. Nikjoo
Richard Alfvin
Paul Nikolich
Butch Anton Mark Hantel
Satoshi Obara
Stefan Aust Marco Hernandez
Bansi Patel
Gordon Bechtel Werner Hoelzl
Alon Regev
David Black Noriyuki Ikeuchi
Maximilian Riegel
Christian Boiger Atsushi Ito
Robert Robinson
Nancy Bravin Raj Jain
Benjamin Rolfe
Dietmar Bruckner SangKwon Jeong
Jessy V. Rouyer
Demetrio Bucaneg, Jr. Peter Jones
Michael Seaman
Stephen Bush Piotr Karocki
Daniel Smith
William Byrd Stephan Kehrer
Thomas Starai
Juan Carreon Stuart Kerry
Walter Struppler
Keith Chow Yongbum Kim
Mark-Rene Uchida
Charles Cook Hyeong Ho Lee
Dmitri Varsanofiev
Rodney Cummings James Lepp
George Vlantis
Sourav Dutta Jon Lewis
Khurram Waheed
János Farkas Michael Lynch
Andreas Wolf
Norman Finn Elvis Maculuba
Chun Yu Charles Wong
Avraham Freedman Arthur Marris
Oren Yuen
Eric W. Gray Richard Mellitz
Zhen Zhou
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
When the IEEE-SA Standards Board approved this standard on 14 June 2018, it had the following
membership:
Jean-Philippe Faure, Chair
Gary Hoffman, Vice Chair
John D. Kulick, Past Chair
Konstantinos Karachalios, Secretary
Chuck Adams Thomas Koshy Robby Robson
Masayuki Ariyoshi Joseph L. Koepfinger* Dorothy Stanley
Ted Burse Kevin Lu Adrian Stephens
Stephen Dukes Daleep Mohla Mehmet Ulema
Phil Wennblom
Damir Novosel
Doug Edwards
Howard Wolfman
Ronald C. Petersen
J. Travis Griffith
Yu Yuan
Annette D. Reilly
Michael Janezic
*Member Emeritus
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Introduction
This introduction is not part of IEEE Std 802.1Qcp-2018, IEEE Standard for Local and metropolitan area networks—
Bridges and Bridged Networks—Amendment 30: YANG Data Model.
This amendment to IEEE Std 802.1Q-2018 specifies a YANG data model that provides configuration and
operational status reporting for IEEE 802.1Q Two-Port MAC Relay, Customer VLAN Bridges, and Provider
Bridges.
This standard contains state-of-the-art material. The area covered by this standard is undergoing evolution.
Revisions are anticipated within the next few years to clarify existing material, to correct possible errors, and
®
to incorporate new related material. Information on the current revision state of this and other IEEE 802
standards may be obtained from
Secretary, IEEE-SA Standards Board
445 Hoes Lane
Piscataway, NJ 08854
USA
8
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Contents
1. Overview . 12
1.3 Introduction. 12
2. Normative references. 13
4. Abbreviations . 14
5. Conformance . 15
5.4 VLAN Bridge component requirements. 15
5.13 MAC Bridge component requirements. 15
5.16 TPMR conformance. 15
8. Principles of Bridge operation . 16
8.12 Bridge Management Entity. 16
8.13 Addressing . 16
12. Bridge management . 17
12.10 Bridge VLAN managed objects. 17
48. YANG Data Model . 18
48.1 YANG Framework. 18
48.2 Security considerations . 19
48.3 IEEE 802.1Q YANG model . 21
48.4 Structure of the YANG model . 31
48.5 Relationship to IEEE 802.1Q managed objects. 33
48.6 Definition of IEEE 802.1Q YANG modules . 39
Annex A (normative) PICS proforma—Bridge implementations . 90
A.5 Major capabilities. 90
A.48 YANG. 90
Annex U (informative) Bibliography . 91
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
List of figures
Figure 48-1—General YANG hierarchy . 18
Figure 48-2—YANG root hierarchy with IEEE 802.1Q YANG modules. 19
Figure 48-3—UML YANG interface management model. 22
Figure 48-4—Generic IEEE 802.1Q bridge mode . 23
Figure 48-5—Bridge port model . 24
Figure 48-6—TPMR model. 25
Figure 48-7—TPMR port model . 26
Figure 48-8—Provider Bridge model . 28
Figure 48-9—Provider Edge Bridge C-VLAN Interface mode. 29
Figure 48-10—Provider Edge Bridge S-VLAN interface model . 30
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
List of tables
Table 48-1—Structure of the YANG modules . 31
Table 48-2—Structure of the ieee802-dot1q-bridge module. 31
Table 48-3—Structure of the ieee802-dot1q-tpmr module . 32
Table 48-4—Structure of the ieee802-dot1q-vlan-bridge module. 32
Table 48-5—Structure of the ieee802-dot1q-pb module. 32
Table 48-6—Bridge cross-reference table. 33
Table 48-7—Bridge component cross-reference table . 34
Table 48-8—Bridge component filtering database cross-reference table. 35
Table 48-9—Bridge component permanent database cross-reference table. 36
Table 48-10—Bridge component Bridge VLAN cross-reference table . 36
Table 48-11—Bridge component Bridge MST cross-reference table . 37
Table 48-12—Bridge port cross-reference table. 38
11
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
IEEE Std 802.1Qcp-2018
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks—
Amendment 30: YANG Data Model
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks—
Amendment 30: YANG Data Model
(This amendment is based on IEEE Std 802.1Q™-2018)
NOTE—The editing instructions contained in this amendment define how to merge the material contained here into the
base document and its other amendments to form the new comprehensive standard.
Editing instructions are shown in bold italic. Four editing instructions are used: change, delete, insert, and replace.
Change is used to make corrections in existing text or tables. The editing instruction specifies the location of the change
and describes what is being changed by using strikethrough (to remove old material) and underscore (to add new
material). Delete removes existing material. Insert adds new material without disturbing the existing material. Insertions
may require renumbering. If so, renumbering instructions are given in the editing instruction. Replace is used to make
changes in figures or equations by removing the existing figure or equation and replacing it with a new one. Editing
instructions, change markings, and this NOTE will not be carried over into future editions because the changes will be
1
incorporated into the base standard.
1. Overview
1.3 Introduction
Insert the following item after j) Defines SMIv2 (IETF STD 58) Management Information Based (MIB)
modules for the management of VLAN Bridge capabilities including spanning tree protocols and
Provider Bridges, renumbering as necessary:
k) Define YANG configur
...
FINAL
ISO/IEC/IEEE
AMENDMENT
DRAFT
8802-1Q:2020
FDAM 2
ISO/IEC JTC 1/SC 6
Telecommunications and exchange
Secretariat: KATS
between information technology
Voting begins on:
2021-03-11 systems — Requirements for local and
metropolitan area networks —
Voting terminates on:
2021-07-29
Part 1Q:
Bridges and bridged networks
AMENDMENT 2: YANG data model
Télécommunications et échange entre systèmes informatiques —
Exigences pour les réseaux locaux et métropolitains —
Partie 1Q: Ponts et réseaux pontés
AMENDEMENT 2
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/IEC/IEEE 8802-1Q:2020/FDAM 2:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. IEEE 2018
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ISO/IEC/IEEE 8802-1Q:2020/FDAM 2:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© IEEE 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from IEEE at the address below.
Institute of Electrical and Electronics Engineers, Inc
3 Park Avenue, New York
NY 10016-5997, USA
Email: stds.ipr@ieee.org
Website: www.ieee.org
Published in Switzerland
ii © IEEE 2018 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC/IEEE 8802-1Q:2020/FDAM 2:2021(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical activity.
ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO/IEC documents should be noted.
IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating
Committees of the IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its
standards through a consensus development process, approved by the American National Standards
Institute, which brings together volunteers representing varied viewpoints and interests to achieve the
final product. Volunteers are not necessarily members of the Institute and serve without compensation.
While the IEEE administers the process and establishes rules to promote fairness in the consensus
development process, the IEEE does not independently evaluate, test, or verify the accuracy of any of the
information contained in its standards.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details
of any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC list of patent
declarations received (see patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards.
ISO/IEC/IEEE 8802-1Q:2020/Amd 2 was prepared by the LAN/MAN of the IEEE Computer Society (as
IEEE Std 802.1Qcp-2018) and drafted in accordance with its editorial rules. It was adopted, under the
“fast-track procedure” defined in the Partner Standards Development Organization cooperation
agreement between ISO and IEEE, by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 6, Telecommunications and information exchange between systems.
A list of all parts in the ISO/IEC/IEEE 8802 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html and www.iec.ch/national-
committees.
© IEEE 2018 – All rights reserved iii
---------------------- Page: 3 ----------------------
IEEE Std 802.1Qcp™-2018
(Amendment to
IEEE Std 802.1Q™-2018)
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks—
Amendment 30: YANG Data Model
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 14 June 2018
IEEE-SA Standards Board
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Abstract: A YANG data model in support of configuration and operational status information for a
subset of Bridging capabilities is provided in this amendment to IEEE Std 802.1Q™-2018.
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Keywords: Bridged Local Area Networks, IEEE 802 , IEEE 802.1Q™, IEEE 802.1Qcp™, local
area networks (LANs), MAC Bridges, metropolitan area networks, Virtual Bridged Local Area
Networks (virtual LANs), YANG
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PDF: ISBN 978-1-5044-4927-4 STD23138
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Participants
At the time of approval of this standard, the IEEE 802.1 Working Group had the following membership:
Glenn Parsons, Chair
John Messenger, Vice Chair
János Farkas, Chair, Time-Sensitive Networking Task Group
Marc Holness, Editor
Ralf Assmann Marina Gutierrez Maximilian Riegel
Shenghua Bao Stephen Haddock Jessy V. Rouyer
Jens Bierschenk Mark Hantel Atsushi Sato
Steinar Bjornstad Lokesh Kabra Frank Schewe
Christian Boiger Michael Karl Michael Seaman
Paul Bottorff Stephan Kehrer Johannes Specht
Radhakrishna Canchi Hajime Koto Patricia Thaler
David Chen Christophe Mangin Paul Unbehagen
Feng Chen Scott Mansfield Xinyuan Wang
Weiying Cheng James McIntosh Tongtong Wang
Paul Congdon Tero Mustala Hao Wang
Rodney Cummings Tomoki Ohsawa Karl Weber
Hesham Elbakoury Donald R. Pannell Brian Weis
Norman Finn Walter Pienciak Jordon Woods
Geoffrey Garner Michael Potts Takahiro Yamaura
Eric W. Gray Wei Qiu Xiang Yu
Craig Gunther Karen Randall Nader Zein
The following members of the individual balloting committee voted on this standard. Balloters may have
voted for approval, disapproval, or abstention.
Randall Groves
Thomas Alexander Charles Moorwood
Stephen Haddock Nick S. A. Nikjoo
Richard Alfvin
Paul Nikolich
Butch Anton Mark Hantel
Satoshi Obara
Stefan Aust Marco Hernandez
Bansi Patel
Gordon Bechtel Werner Hoelzl
Alon Regev
David Black Noriyuki Ikeuchi
Maximilian Riegel
Christian Boiger Atsushi Ito
Robert Robinson
Nancy Bravin Raj Jain
Benjamin Rolfe
Dietmar Bruckner SangKwon Jeong
Jessy V. Rouyer
Demetrio Bucaneg, Jr. Peter Jones
Michael Seaman
Stephen Bush Piotr Karocki
Daniel Smith
William Byrd Stephan Kehrer
Thomas Starai
Juan Carreon Stuart Kerry
Walter Struppler
Keith Chow Yongbum Kim
Mark-Rene Uchida
Charles Cook Hyeong Ho Lee
Dmitri Varsanofiev
Rodney Cummings James Lepp
George Vlantis
Sourav Dutta Jon Lewis
Khurram Waheed
János Farkas Michael Lynch
Andreas Wolf
Norman Finn Elvis Maculuba
Chun Yu Charles Wong
Avraham Freedman Arthur Marris
Oren Yuen
Eric W. Gray Richard Mellitz
Zhen Zhou
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
When the IEEE-SA Standards Board approved this standard on 14 June 2018, it had the following
membership:
Jean-Philippe Faure, Chair
Gary Hoffman, Vice Chair
John D. Kulick, Past Chair
Konstantinos Karachalios, Secretary
Chuck Adams Thomas Koshy Robby Robson
Masayuki Ariyoshi Joseph L. Koepfinger* Dorothy Stanley
Ted Burse Kevin Lu Adrian Stephens
Stephen Dukes Daleep Mohla Mehmet Ulema
Phil Wennblom
Damir Novosel
Doug Edwards
Howard Wolfman
Ronald C. Petersen
J. Travis Griffith
Yu Yuan
Annette D. Reilly
Michael Janezic
*Member Emeritus
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Introduction
This introduction is not part of IEEE Std 802.1Qcp-2018, IEEE Standard for Local and metropolitan area networks—
Bridges and Bridged Networks—Amendment 30: YANG Data Model.
This amendment to IEEE Std 802.1Q-2018 specifies a YANG data model that provides configuration and
operational status reporting for IEEE 802.1Q Two-Port MAC Relay, Customer VLAN Bridges, and Provider
Bridges.
This standard contains state-of-the-art material. The area covered by this standard is undergoing evolution.
Revisions are anticipated within the next few years to clarify existing material, to correct possible errors, and
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to incorporate new related material. Information on the current revision state of this and other IEEE 802
standards may be obtained from
Secretary, IEEE-SA Standards Board
445 Hoes Lane
Piscataway, NJ 08854
USA
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
Contents
1. Overview . 12
1.3 Introduction. 12
2. Normative references. 13
4. Abbreviations . 14
5. Conformance . 15
5.4 VLAN Bridge component requirements. 15
5.13 MAC Bridge component requirements. 15
5.16 TPMR conformance. 15
8. Principles of Bridge operation . 16
8.12 Bridge Management Entity. 16
8.13 Addressing . 16
12. Bridge management . 17
12.10 Bridge VLAN managed objects. 17
48. YANG Data Model . 18
48.1 YANG Framework. 18
48.2 Security considerations . 19
48.3 IEEE 802.1Q YANG model . 21
48.4 Structure of the YANG model . 31
48.5 Relationship to IEEE 802.1Q managed objects. 33
48.6 Definition of IEEE 802.1Q YANG modules . 39
Annex A (normative) PICS proforma—Bridge implementations . 90
A.5 Major capabilities. 90
A.48 YANG. 90
Annex U (informative) Bibliography . 91
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
List of figures
Figure 48-1—General YANG hierarchy . 18
Figure 48-2—YANG root hierarchy with IEEE 802.1Q YANG modules. 19
Figure 48-3—UML YANG interface management model. 22
Figure 48-4—Generic IEEE 802.1Q bridge mode . 23
Figure 48-5—Bridge port model . 24
Figure 48-6—TPMR model. 25
Figure 48-7—TPMR port model . 26
Figure 48-8—Provider Bridge model . 28
Figure 48-9—Provider Edge Bridge C-VLAN Interface mode. 29
Figure 48-10—Provider Edge Bridge S-VLAN interface model . 30
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
List of tables
Table 48-1—Structure of the YANG modules . 31
Table 48-2—Structure of the ieee802-dot1q-bridge module. 31
Table 48-3—Structure of the ieee802-dot1q-tpmr module . 32
Table 48-4—Structure of the ieee802-dot1q-vlan-bridge module. 32
Table 48-5—Structure of the ieee802-dot1q-pb module. 32
Table 48-6—Bridge cross-reference table. 33
Table 48-7—Bridge component cross-reference table . 34
Table 48-8—Bridge component filtering database cross-reference table. 35
Table 48-9—Bridge component permanent database cross-reference table. 36
Table 48-10—Bridge component Bridge VLAN cross-reference table . 36
Table 48-11—Bridge component Bridge MST cross-reference table . 37
Table 48-12—Bridge port cross-reference table. 38
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ISO/IEC/IEEE 8802-1Q:2020/Amd.2:2021(E)
IEEE Std 802.1Qcp-2018
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks—
Amendment 30: YANG Data Model
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks—
Amendment 30: YANG Data Model
(This amendment is based on IEEE Std 802.1Q™-2018)
NOTE—The editing instructions contained in this amendment define how to merge the material contained here into the
base document and its other amendments to form the new comprehensive standard.
Editing instructions are shown in bold italic. Four editing instructions are used: change, delete, insert, and replace.
Change is used to make corrections in existing text or tables. The editing instruction specifies the location of the change
and describes what is being changed by using strikethrough (to remove old material) and underscore (to add new
material). Delete removes existing material. Insert adds new material without disturbing the existing material. Insertions
may require renumbering. If so, renumbering instructions are given in the editing instruction. Replace is used to make
changes in f
...
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