Telecommunications and exchange between information technology systems — Requirements for local and metropolitan area networks — Part 3: Standard for Ethernet — Amendment 4: Physical layers and management parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s operation over single‐mode fiber

Télécommunications et échange entre systèmes informatiques — Exigences pour les réseaux locaux et métropolitains — Partie 3: Norme pour Ethernet — Amendement 4: Couches physiques et paramètres de gestion pour le fonctionnement à 50 Gb/s, 200 Gb/s et 400 Gb/s sur des fibres unimodales

General Information

Status
Published
Publication Date
28-Oct-2021
Current Stage
6060 - International Standard published
Start Date
29-Oct-2021
Completion Date
29-Oct-2021
Ref Project

RELATIONS

Buy Standard

Standard
ISO/IEC/IEEE 8802-3:2021/Amd 4:2021 - Physical layers and management parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s operation over single-mode fiber
English language
69 pages
sale 15% off
Preview
sale 15% off
Preview
Draft
ISO/IEC/IEEE 8802-3:2021/FDAmd 4:Version 17-apr-2021 - Physical layers and management parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s operation over single-mode fiber
English language
69 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO/IEC/
STANDARD IEEE
8802-3
Third edition
2021-02
AMENDMENT 4
2021-10
Telecommunications and exchange
between information technology
systems — Requirements for local and
metropolitan area networks —
Part 3:
Standard for Ethernet
AMENDMENT 4: Physical layers and
management parameters for 50 Gb/s,
200 Gb/s, and 400 Gb/s operation over
single‐mode fiber
Télécommunications et échange entre systèmes informatiques —
Exigences pour les réseaux locaux et métropolitains —
Partie 3: Norme pour Ethernet
AMENDEMENT 4: Couches physiques et paramètres de gestion pour
le fonctionnement à 50 Gb/s, 200 Gb/s et 400 Gb/s sur des fibres
unimodales
Reference number
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
© ISO/IEC 2021
© IEEE 2019
---------------------- Page: 1 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© IEEE 2019

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
© IEEE 2019 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(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 (see www.iso.org/directives or

www.iec.ch/members_experts/refdocs).

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 8802-3:2021/Amd 4 was prepared by the LAN/MAN of the IEEE Computer Society (as

IEEE Std 802-3cn-2019) 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.
Copyright © 2019 IEEE. All rights reserved. iii
---------------------- Page: 3 ----------------------
IEEE Std 802.3cn™-2019
(Amendment to IEEE Std 802.3™-2018
as amended by IEEE Std 802.3cb™-2018,
IEEE Std 802.3bt™-2018, and
IEEE Std 802.3cd™-2018)
IEEE Standard for Ethernet
Amendment 4:
Physical Layers and Management
Parameters for 50 Gb/s, 200 Gb/s, and
400 Gb/s Operation over Single-Mode Fiber
Developed by the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 7 November 2019
IEEE SA Standards Board
---------------------- Page: 4 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)

Abstract: This amendment to IEEE Std 802.3-2018 adds Physical Layer (PHY) specifications and

management parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s operation over single-mode fiber

with reaches of at least 40 km.

Keywords: 50 Gb/s Ethernet, 50GBASE-ER, 200 Gb/s Ethernet, 200GBASE-ER4, 400 Gb/s

Ethernet, 400GBASE-ER8, amendment, EEE, Energy-Efficient Ethernet, Ethernet, FEC, forward

error correction, IEEE 802.3™, IEEE 802.3cn™, PAM4, physical medium dependent sublayer,

PMD sublayer, single-mode fiber, SMF
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2019 by The Institute of Electrical and Electronics Engineers, Inc.

All rights reserved. Published 20 December 2019. Printed in the United States of America.

IEEE and 802 are registered trademarks in the U.S. Patent & Trademark Office, owned by The Institute of Electrical and

Electronics Engineers, Incorporated.
PDF: ISBN 978-1-5044-6384-3 STD24016
Print: ISBN 978-1-5044-6385-0 STDPD24016
IEEE prohibits discrimination, harassment and bullying.

For more information, visit http://www.ieee.org/web/aboutus/whatis/policies/p9-26.html.

No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior

written permission of the publisher.
---------------------- Page: 5 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Important Notices and Disclaimers Concerning IEEE Standards
Documents

IEEE documents are made available for use subject to important notices and legal disclaimers. These notices

and disclaimers, or a reference to this page, appear in all standards and may be found under the heading

“Important Notices and Disclaimers Concerning IEEE Standards Documents.” They can also be obtained on

request from IEEE or viewed at http://standards.ieee.org/ipr/disclaimers.html.
Notice and Disclaimer of Liability Concerning the Use of IEEE Standards
Documents

IEEE Standards documents (standards, recommended practices, and guides), both full-use and trial-use, are

developed within IEEE Societies and the Standards Coordinating Committees of the IEEE Standards

Association (“IEEE SA”) Standards Board. IEEE (“the Institute”) develops its standards through a

consensus development process, approved by the American National Standards Institute (“ANSI”), which

brings together volunteers representing varied viewpoints and interests to achieve the final product. IEEE

Standards are documents developed through scientific, academic, and industry-based technical working

groups. Volunteers in IEEE working groups are not necessarily members of the Institute and participate

without compensation from IEEE. While IEEE administers the process and establishes rules to promote

fairness in the consensus development process, IEEE does not independently evaluate, test, or verify the

accuracy of any of the information or the soundness of any judgments contained in its standards.

IEEE Standards do not guarantee or ensure safety, security, health, or environmental protection, or ensure

against interference with or from other devices or networks. Implementers and users of IEEE Standards

documents are responsible for determining and complying with all appropriate safety, security,

environmental, health, and interference protection practices and all applicable laws and regulations.

IEEE does not warrant or represent the accuracy or content of the material contained in its standards, and

expressly disclaims all warranties (express, implied and statutory) not included in this or any other

document relating to the standard, including, but not limited to, the warranties of: merchantability; fitness

for a particular purpose; non-infringement; and quality, accuracy, effectiveness, currency, or completeness

of material. In addition, IEEE disclaims any and all conditions relating to: results; and workmanlike effort.

IEEE standards documents are supplied “AS IS” and “WITH ALL FAULTS.”

Use of an IEEE standard is wholly voluntary. The existence of an IEEE standard does not imply that there

are no other ways to produce, test, measure, purchase, market, or provide other goods and services related to

the scope of the IEEE standard. Furthermore, the viewpoint expressed at the time a standard is approved and

issued is subject to change brought about through developments in the state of the art and comments

received from users of the standard.

In publishing and making its standards available, IEEE is not suggesting or rendering professional or other

services for, or on behalf of, any person or entity nor is IEEE undertaking to perform any duty owed by any

other person or entity to another. Any person utilizing any IEEE Standards document, should rely upon his

or her own independent judgment in the exercise of reasonable care in any given circumstances or, as

appropriate, seek the advice of a competent professional in determining the appropriateness of a given IEEE

standard.
IN NO EVENT SHALL IEEE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO:
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE PUBLICATION, USE OF, OR RELIANCE
UPON ANY STANDARD, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE AND
REGARDLESS OF WHETHER SUCH DAMAGE WAS FORESEEABLE.
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 6 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Translations

The IEEE consensus development process involves the review of documents in English only. In the event

that an IEEE standard is translated, only the English version published by IEEE should be considered the

approved IEEE standard.
Official statements

A statement, written or oral, that is not processed in accordance with the IEEE SA Standards Board

Operations Manual shall not be considered or inferred to be the official position of IEEE or any of its

committees and shall not be considered to be, or be relied upon as, a formal position of IEEE. At lectures,

symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall

make it clear that his or her views should be considered the personal views of that individual rather than the

formal position of IEEE.
Comments on standards

Comments for revision of IEEE Standards documents are welcome from any interested party, regardless of

membership affiliation with IEEE. However, IEEE does not provide consulting information or advice

pertaining to IEEE Standards documents. Suggestions for changes in documents should be in the form of a

proposed change of text, together with appropriate supporting comments. Since IEEE standards represent a

consensus of concerned interests, it is important that any responses to comments and questions also receive

the concurrence of a balance of interests. For this reason, IEEE and the members of its societies and

Standards Coordinating Committees are not able to provide an instant response to comments or questions

except in those cases where the matter has previously been addressed. For the same reason, IEEE does not

respond to interpretation requests. Any person who would like to participate in revisions to an IEEE

standard is welcome to join the relevant IEEE working group.
Comments on standards should be submitted to the following address:
Secretary, IEEE SA Standards Board
445 Hoes Lane
Piscataway, NJ 08854 USA
Laws and regulations

Users of IEEE Standards documents should consult all applicable laws and regulations. Compliance with the

provisions of any IEEE Standards document does not imply compliance to any applicable regulatory

requirements. Implementers of the standard are responsible for observing or referring to the applicable

regulatory requirements. IEEE does not, by the publication of its standards, intend to urge action that is not

in compliance with applicable laws, and these documents may not be construed as doing so.

Copyrights

IEEE draft and approved standards are copyrighted by IEEE under US and international copyright laws.

They are made available by IEEE and are adopted for a wide variety of both public and private uses. These

include both use, by reference, in laws and regulations, and use in private self-regulation, standardization,

and the promotion of engineering practices and methods. By making these documents available for use and

adoption by public authorities and private users, IEEE does not waive any rights in copyright to the

documents.
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 7 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Photocopies

Subject to payment of the appropriate fee, IEEE will grant users a limited, non-exclusive license to

photocopy portions of any individual standard for company or organizational internal use or individual, non-

commercial use only. To arrange for payment of licensing fees, please contact Copyright Clearance Center,

Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA; +1 978 750 8400. Permission to

photocopy portions of any individual standard for educational classroom use can also be obtained through

the Copyright Clearance Center.
Updating of IEEE Standards documents

Users of IEEE Standards documents should be aware that these documents may be superseded at any time

by the issuance of new editions or may be amended from time to time through the issuance of amendments,

corrigenda, or errata. An official IEEE document at any point in time consists of the current edition of the

document together with any amendments, corrigenda, or errata then in effect.

Every IEEE standard is subjected to review at least every 10 years. When a document is more than 10 years

old and has not undergone a revision process, it is reasonable to conclude that its contents, although still of

some value, do not wholly reflect the present state of the art. Users are cautioned to check to determine that

they have the latest edition of any IEEE standard.

In order to determine whether a given document is the current edition and whether it has been amended

through the issuance of amendments, corrigenda, or errata, visit IEEE Xplore at https://ieeexplore.ieee.org

or contact IEEE at the address listed previously. For more information about the IEEE SA or IEEE’s

standards development process, visit the IEEE SA Website at http://standards.ieee.org.

Errata

Errata, if any, for IEEE standards can be accessed via https://standards.ieee.org/standard/index.html. Search

for standard number and year of approval to access the web page of the published standard. Errata links are

located under the Additional Resources Details section. Errata are also available in IEEE Xplore:

https://ieeexplore.ieee.org/browse/standards/collection/ieee/. Users are encouraged to periodically check for

errata.
Patents

Attention is called to the possibility that implementation of this standard may require use of subject matter

covered by patent rights. By publication of this standard, no position is taken by the IEEE with respect to the

existence or validity of any patent rights in connection therewith. If a patent holder or patent applicant has

filed a statement of assurance via an Accepted Letter of Assurance, then the statement is listed on the IEEE

SA Website at https://standards.ieee.org/about/sasb/patcom/patents.html. Letters of Assurance may indicate

whether the Submitter is willing or unwilling to grant licenses under patent rights without compensation or

under reasonable rates, with reasonable terms and conditions that are demonstrably free of any unfair

discrimination to applicants desiring to obtain such licenses.

Essential Patent Claims may exist for which a Letter of Assurance has not been received. The IEEE is not

responsible for identifying Essential Patent Claims for which a license may be required, for conducting

inquiries into the legal validity or scope of Patents Claims, or determining whether any licensing terms or

conditions provided in connection with submission of a Letter of Assurance, if any, or in any licensing

agreements are reasonable or non-discriminatory. Users of this standard are expressly advised that

determination of the validity of any patent rights, and the risk of infringement of such rights, is entirely their

own responsibility. Further information may be obtained from the IEEE Standards Association.

Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 8 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Participants

The following individuals were officers and members of the IEEE 802.3 Working Group at the beginning of

the IEEE P802.3cn Working Group ballot.
David J. Law, IEEE 802.3 Working Group Chair
Adam Healey, IEEE 802.3 Working Group Vice-Chair
Pete Anslow, IEEE 802.3 Working Group Secretary
Steven B. Carlson, IEEE 802.3 Working Group Executive Secretary
Valerie Maguire, IEEE 802.3 Working Group Treasurer

John D’Ambrosia, IEEE P802.3cn 50 Gb/s, 200 Gb/s, and 400 Gb/s over Single-Mode Fiber

Task Force Chair

Pete Anslow, IEEE P802.3cn 50 Gb/s, 200 Gb/s, and 400 Gb/s over Single-Mode Fiber Task Force

Editor-in-Chief

Peter Stassar, IEEE P802.3cn 50 Gb/s, 200 Gb/s, and 400 Gb/s over Single-Mode Fiber Task Force

Editor for Clauses 122 and 139
John Abbott Hormoz Djahanshahi
John Johnson
David Abramson Curtis Donahue
Chad Jones
Andrea Agnes Liang Du
Peter Jones
Dale Amason Kathryn Dube
Lokesh Kabra
Hongming An Mike Dudek
Manabu Kagami
Jes Asmussen Marc Dupuis
Upen Kareti
Richard Baca Frank Effenberger
Yasuaki Kawatsu
David Estes
Tim Baggett
Yong Kim
John Ewen
Amrik Bains
Mark Kimber
Thananya Baldwin Borhan Fathi Moghadam
Jonathan King
Steven Baumgartner Vincent Ferretti
Michael Klempa
Denis Beaudoin Brian Franchuk
Curtis Knittle
Liav Ben-Artsi Matthias Fritsche
Piergiorgio Beruto Richard Frosch Elizabeth Kochuparambil
Vipul Bhatt Shiyong Fu Wojciech Koczwara
Gao Bo Mike Gardner
Paul Kolesar
Claude Gauthier
Brad Booth
Taiji Kondo
Martin Bouda Ali Ghiasi
Glen Kramer
David Brandt Joel Goergen
Olaf Krieger
Ralf-Peter Braun Zhigang Gong
Hans Lackner
Paul Brooks Steven Gorshe
Jeffrey Lapak
Alan Brown Jens Gottron
Mark Laubach
Matthew Brown Steffen Graber
Han Hyub Lee
Michal Brychta Olaf Grau
June Hee Lee
Gary Burrell Robert Grow
Alex Levin
Jairo Bustos Heredia Mark Gustlin
David Lewis
Adrian Butter Marek Hajduczenia
John Calvin Hayden Haynes Jon Lewis
Clark Carty Xiang He
David Li
Craig Chabot Howard Heck
Mike-Peng Li
David Chalupsky Rajmohan Hegde
Jane Lim
Frank Chang Brian Holden
Alex Lin
Xin Chang Rita Horner
Robert Lingle
Golam Choudhury Bernd Horrmeyer
Dekun Liu
Keng Hua Chuang Gergely Huszak
Hai-Feng Liu
Kamal Dalmia Yasuhiro Hyakutake
Karen Liu
Piers Dawe Jonathan Ingham
Zhenyu Liu
Fred Dawson Kazuhiko Ishibe
William Lo
John Deandrea Hideki Isono
Yuchun Lu
Gerrit den Besten Tom Issenhuth
Miklos Lukacs
Claudio DeSanti Kenneth Jackson
Chris Diminico Andrew Jimenez Kent Lusted
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 9 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Ilya Lyubomirsky Christopher Pohl Nathan Tracy
Zahy Madgar William Powell David Tremblay
Jeffery Maki Dino Pozzebon Stephen Trowbridge
David Malicoat Rick Rabinovich Ta Chin Tseng
Flavio Marques Zvi Rechtman Ed Ulrichs
Arthur Marris Alon Regev Alexander Umnov
Chris Mash Duane Remein Ricky Vernickel
Takeo Masuda Victor Renteria Marco Vitali
Kirsten Matheus Salvatore Rotolo Robert Voss
Erdem Matoglu Alexander Rysin Dylan Walker
Toshiaki Sakai
Marco Mazzini Haifei Wang
Hamid Salehi
Mick McCarthy Roy Wang
Brett McClellan Sam Sambasivan
Tongtong Wang
Larry McMillan Edward Sayre
Xinyuan Wang
Greg McSorley James Schuessler
Xuehuan Wang
Richard Mellitz Steve Sekel Christoph Wechsler
Martin Miller Masood Shariff Brian Welch
Toshiyuki Moritake Mizuki Shirao Matthias Wendt
Harald Mueller Jialong Shuai Natalie Wienckowski
Thomas Mueller Jeff Slavick James Withey
Edward Nakamoto Daniel Smith Mau-Lin Wu
Paul Neveux Scott Sommers Peter Wu
Gary Nicholl Tom Souvignier Markus Wucher
Shawn Nicholl Bryan Sparrowhawk Dayin Xu
John Nolan Edward Sprague Yu Xu
Kevin Noll Heath Stewart Shuto Yamamoto
Mark Nowell David Stover Adrian Young
David Ofelt Junqing Sun James Young
Josef Ohni Liyang Sun Lennart Yseboodt
Tom Palkert Steve Swanson Andrew Zambell
Sujan Pandey Bharat Tailor Conrad Zerna
Carlos Pardo Tomoo Takahara Richard (Yujia) Zhou
Earl Parsons Kohichi Tamura Yan Zhuang
Gerald Pepper Mehmet Tazebay Martin Zielinski
Phong Pham
Ronald Tellas George Zimmerman
David Piehler
Geoffrey Thompson Pavel Zivny
Rick Pimpinella Harald Zweck
Pirooz Tooyserkani
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 10 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)

The following members of the individual balloting committee voted on this standard. Balloters may have

voted for approval, disapproval, or abstention.
Rob Aekins David Hess Thomas Palkert
Thomas Alexander Werner Hoelzl Carlos Pardo
Rita Horner
Pete Anslow Bansi Patel
C. Huntley David Piehler
Burrell Best
Yasuhiro Hyakutake Rick Pimpinella
Rich Boyer
Atsushi Ito Adee Ran
Ralf-Peter Braun
Raj Jain
R. K. Rannow
Nancy Bravin
Peter Jones Alon Regev
Matthew Brown
Lokesh Kabra Robert Robinson
Demetrio Bucaneg
Piotr Karocki
Thomas Starai
Gary Burrell
Stuart Kerry Peter Stassar
Jairo Bustos Heredia
Yongbum Kim Walter Struppler
William Byrd
Mark Laubach Mitsutoshi Sugawara
John Calvin
David J. Law
James Theodoras
Steven B. Carlson
Hyeong Ho Lee David Thompson
Juan Carreon
David Lewis David Tremblay
Chan Chen
Jon Lewis Stephen Trowbridge
John D’Ambrosia
Michael Lynch Mark-Rene Uchida
Piers J. G. Dawe
Valerie Maguire Alexander Umnov
John Deandrea
Jeffery Maki Dmitri Varsanofiev
Marc Dupuis
David Malicoat George Vlantis
Avraham Freedman
Arthur Marris Lisa Ward
Ali Ghiasi
Michael Maytum Keith Waters
James Gilb
Richard Mellitz Chun Yu Charles Wong
Zhigang Gong
Paul Neveux
James Young
Randall Groves
Nick S. A. Nikjoo Yu Yuan
Marek Hajduczenia
Satoshi Obara Oren Yuen
Marco Hernandez Zhen Zhou

When the IEEE SA Standards Board approved this standard on 7 November 2019, it had the following

membership:
Gary Hoffman, Chair
Ted Burse, Vice Chair
Jean-Philippe Faure, Past Chair
Konstantinos Karachalios, Secretary
Masayuki Ariyoshi David J. Law Annette Reilly
Stephen D. Dukes Joseph Levy Dorothy Stanley
Howard Li Sha Wei
J. Travis Griffith
Guido Hiertz Xiaohui Liu Phil Wennblom
Christel Hunter Kevin Lu Philip Winston
Joseph L. Koepfinger* Daleep Mohla Howard Wolfman
Andrew Myles
Thomas Koshy Feng Wu
John D. Kulick Jingyi Zhou
*Member Emeritus
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 11 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Introduction

This introduction is not part of IEEE Std 802.3cn-2019, IEEE Standard for Ethernet. Amendment 4: Physical Layers

and Management Parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s Operation over Single-Mode Fiber.

IEEE Std 802.3™ was first published in 1985. Since the initial publication, many projects have added

functionality or provided maintenance updates to the specifications and text included in the standard. Each

IEEE 802.3 project/amendment is identified with a suffix (e.g., IEEE Std 802.3ba™-2010).

The half duplex Media Access Control (MAC) protocol specified in IEEE Std 802.3-1985 is Carrier Sense

Multiple Access with Collision Detection (CSMA/CD). This MAC protocol was key to the experimental

Ethernet developed at Xerox Palo Alto Research Center, which had a 2.94 Mb/s data rate. Ethernet at

10 Mb/s was jointly released as a public specification by Digital Equipment Corporation (DEC), Intel and

Xerox in 1980. Ethernet at 10 Mb/s was approved as an IEEE standard by the IEEE Standards Board in 1983

and subsequently published in 1985 as IEEE Std 802.3-1985. Since 1985, new media options, new speeds of

operation, and new capabilities have been added to IEEE Std 802.3. A full duplex MAC protocol was added

in 1997.

Some of the major additions to IEEE Std 802.3 are identified in the marketplace with their project number.

This is most common for projects adding higher speeds of operation or new protocols. For example, IEEE

Std 802.3u™ added 100 Mb/s operation (also called Fast Ethernet), IEEE Std 802.3z added 1000 Mb/s

operation (also called Gigabit Ethernet), IEEE Std 802.3ae added 10 Gb/s operation (also called 10 Gigabit

Ethernet), IEEE Std 802.3ah™ specified access network Ethernet (also called Ethernet in the First Mile) and

IEEE Std 802.3ba added 40 Gb/s operation (also called 40 Gigabit Ethernet) and 100 Gb/s operation (also

called 100 Gigabit Ethernet). These major additions are all now included in and are superseded by IEEE Std

802.3-2018 and are not maintained as separate documents.

At the date of publication for IEEE Std 802.3cn-2019, IEEE Std 802.3 was composed of the following

documents:
IEEE Std 802.3-2018

Section One—Includes Clause 1 through Clause 20 and Annex A through Annex H and Annex 4A.

Section One includes the specifications for 10 Mb/s operation and the MAC, frame formats and

service interfaces used for all speeds of operation.

Section Two—Includes Clause 21 through Clause 33 and Annex 22A through Annex 33E. Section

Two includes management attributes for multiple protocols and speed of operation as well as

specifications for providing power over twisted pair cabling for multiple operational speeds. It also

includes general information on 100 Mb/s operation as well as most of the 100 Mb/s Physical Layer

specifications.

Section Three—Includes Clause 34 through Clause 43 and Annex 36A through Annex 43C. Section

Three includes general information on 1000 Mb/s operation as well as most of the 1000 Mb/s Physical

Layer specifications.

Section Four—Includes Clause 44 through Clause 55 and Annex 44A through Annex 55B. Section

Four includes general information on 10 Gb/s operation as well as most of the 10 Gb/s Physical Layer

specifications.

Section Five—Includes Clause 56 through Clause 77 and Annex 57A through Annex 76A. Clause 56

through Clause 67 and Clause 75 through Clause 77, as well as associated annexes, specify subscriber

access and other Physical Layers and sublayers for operation from 512 kb/s to 10 Gb/s, and defines

Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 12 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)

services and protocol elements that enable the exchange of IEEE Std 802.3 format frames between

stations in a subscriber access network. Clause 68 specifies a 10 Gb/s Physical Layer specification.

Clause 69 through Clause 74 and associated annexes specify Ethernet operation over electrical

backplanes at speeds of 1000 Mb/s and 10 Gb/s.

Section Six—Includes Clause 78 through Clause 95 and Annex 83A through Annex 93C. Clause 78

specifies Energy-Efficient Ethernet. Clause 79 specifies IEEE 802.3 Organizationally Specific Link

Layer Discovery Protocol (LLDP) type, length, and value (TLV) information elements. Clause 80

through Clause 95 and associated annexes include general information on 40 Gb/s and 100 Gb/s

operation as well the 40 Gb/s and 100 Gb/s Physical Layer specifications. Clause 90 specifies Ethernet

support for time synchronization protocols.

Section Seven—Includes Clause 96 through Clause 115 and Annex 97A through Annex 115A.

Clause 96 through Clause 98, Clause 104, and associated annexes, specify Physical Layers and

optional features for 100 Mb/s and 1000 Mb/s operation over a single twisted pair. Clause 100 through

Clause 103, as well as associated annexes, specify Physical Layers for the operation of the EPON

protocol over coaxial distribution networks. Clause 105 through Clause 114 and associated annexes

include general information on 25 Gb/s operation as well as 25 Gb/s Physical Layer specifications.

Clause 99 specifies a MAC merge sublayer for the interspersing of express traffic. Clause 115 and its

associated annex specify a Physical Layer for 1000 Mb/s operation over plastic optical f

...

FINAL
ISO/IEC/IEEE
AMENDMENT
DRAFT
8802-3:2021
FDAM 4
ISO/IEC JTC 1/SC 6
Telecommunications and exchange
Secretariat: KATS
between information technology
Voting begins on:
2021-04-21 systems — Requirements for local and
metropolitan area networks —
Voting terminates on:
2021-09-08
Part 3:
Standard for Ethernet
AMENDMENT 4: Physical layers and
management parameters for 50 Gb/s,
200 Gb/s, and 400 Gb/s operation over
single‐mode fiber
Télécommunications et échange entre systèmes informatiques —
Exigences pour les réseaux locaux et métropolitains —
Partie 3: Norme pour Ethernet
AMENDEMENT 4
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 8802-3:2021/FDAM 4:2021(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 2019
---------------------- Page: 1 ----------------------
ISO/IEC/IEEE 8802-3:2021/FDAM 4:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© IEEE 2019

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 2019 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC/IEEE 8802-3:2021/FDAM 4:2021(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 (see www.iso.org/directives or

www.iec.ch/members_experts/refdocs).

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 8802-3:2021/Amd 4 was prepared by the LAN/MAN of the IEEE Computer Society (as

IEEE Std 802-3cn-2019) 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.
Copyright © 2019 IEEE. All rights reserved. iii
---------------------- Page: 3 ----------------------
IEEE Std 802.3cn™-2019
(Amendment to IEEE Std 802.3™-2018
as amended by IEEE Std 802.3cb™-2018,
IEEE Std 802.3bt™-2018, and
IEEE Std 802.3cd™-2018)
IEEE Standard for Ethernet
Amendment 4:
Physical Layers and Management
Parameters for 50 Gb/s, 200 Gb/s, and
400 Gb/s Operation over Single-Mode Fiber
Developed by the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 7 November 2019
IEEE SA Standards Board
---------------------- Page: 4 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)

Abstract: This amendment to IEEE Std 802.3-2018 adds Physical Layer (PHY) specifications and

management parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s operation over single-mode fiber

with reaches of at least 40 km.

Keywords: 50 Gb/s Ethernet, 50GBASE-ER, 200 Gb/s Ethernet, 200GBASE-ER4, 400 Gb/s

Ethernet, 400GBASE-ER8, amendment, EEE, Energy-Efficient Ethernet, Ethernet, FEC, forward

error correction, IEEE 802.3™, IEEE 802.3cn™, PAM4, physical medium dependent sublayer,

PMD sublayer, single-mode fiber, SMF
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2019 by The Institute of Electrical and Electronics Engineers, Inc.

All rights reserved. Published 20 December 2019. Printed in the United States of America.

IEEE and 802 are registered trademarks in the U.S. Patent & Trademark Office, owned by The Institute of Electrical and

Electronics Engineers, Incorporated.
PDF: ISBN 978-1-5044-6384-3 STD24016
Print: ISBN 978-1-5044-6385-0 STDPD24016
IEEE prohibits discrimination, harassment and bullying.

For more information, visit http://www.ieee.org/web/aboutus/whatis/policies/p9-26.html.

No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior

written permission of the publisher.
---------------------- Page: 5 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Important Notices and Disclaimers Concerning IEEE Standards
Documents

IEEE documents are made available for use subject to important notices and legal disclaimers. These notices

and disclaimers, or a reference to this page, appear in all standards and may be found under the heading

“Important Notices and Disclaimers Concerning IEEE Standards Documents.” They can also be obtained on

request from IEEE or viewed at http://standards.ieee.org/ipr/disclaimers.html.
Notice and Disclaimer of Liability Concerning the Use of IEEE Standards
Documents

IEEE Standards documents (standards, recommended practices, and guides), both full-use and trial-use, are

developed within IEEE Societies and the Standards Coordinating Committees of the IEEE Standards

Association (“IEEE SA”) Standards Board. IEEE (“the Institute”) develops its standards through a

consensus development process, approved by the American National Standards Institute (“ANSI”), which

brings together volunteers representing varied viewpoints and interests to achieve the final product. IEEE

Standards are documents developed through scientific, academic, and industry-based technical working

groups. Volunteers in IEEE working groups are not necessarily members of the Institute and participate

without compensation from IEEE. While IEEE administers the process and establishes rules to promote

fairness in the consensus development process, IEEE does not independently evaluate, test, or verify the

accuracy of any of the information or the soundness of any judgments contained in its standards.

IEEE Standards do not guarantee or ensure safety, security, health, or environmental protection, or ensure

against interference with or from other devices or networks. Implementers and users of IEEE Standards

documents are responsible for determining and complying with all appropriate safety, security,

environmental, health, and interference protection practices and all applicable laws and regulations.

IEEE does not warrant or represent the accuracy or content of the material contained in its standards, and

expressly disclaims all warranties (express, implied and statutory) not included in this or any other

document relating to the standard, including, but not limited to, the warranties of: merchantability; fitness

for a particular purpose; non-infringement; and quality, accuracy, effectiveness, currency, or completeness

of material. In addition, IEEE disclaims any and all conditions relating to: results; and workmanlike effort.

IEEE standards documents are supplied “AS IS” and “WITH ALL FAULTS.”

Use of an IEEE standard is wholly voluntary. The existence of an IEEE standard does not imply that there

are no other ways to produce, test, measure, purchase, market, or provide other goods and services related to

the scope of the IEEE standard. Furthermore, the viewpoint expressed at the time a standard is approved and

issued is subject to change brought about through developments in the state of the art and comments

received from users of the standard.

In publishing and making its standards available, IEEE is not suggesting or rendering professional or other

services for, or on behalf of, any person or entity nor is IEEE undertaking to perform any duty owed by any

other person or entity to another. Any person utilizing any IEEE Standards document, should rely upon his

or her own independent judgment in the exercise of reasonable care in any given circumstances or, as

appropriate, seek the advice of a competent professional in determining the appropriateness of a given IEEE

standard.
IN NO EVENT SHALL IEEE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO:
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE PUBLICATION, USE OF, OR RELIANCE
UPON ANY STANDARD, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE AND
REGARDLESS OF WHETHER SUCH DAMAGE WAS FORESEEABLE.
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 6 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Translations

The IEEE consensus development process involves the review of documents in English only. In the event

that an IEEE standard is translated, only the English version published by IEEE should be considered the

approved IEEE standard.
Official statements

A statement, written or oral, that is not processed in accordance with the IEEE SA Standards Board

Operations Manual shall not be considered or inferred to be the official position of IEEE or any of its

committees and shall not be considered to be, or be relied upon as, a formal position of IEEE. At lectures,

symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall

make it clear that his or her views should be considered the personal views of that individual rather than the

formal position of IEEE.
Comments on standards

Comments for revision of IEEE Standards documents are welcome from any interested party, regardless of

membership affiliation with IEEE. However, IEEE does not provide consulting information or advice

pertaining to IEEE Standards documents. Suggestions for changes in documents should be in the form of a

proposed change of text, together with appropriate supporting comments. Since IEEE standards represent a

consensus of concerned interests, it is important that any responses to comments and questions also receive

the concurrence of a balance of interests. For this reason, IEEE and the members of its societies and

Standards Coordinating Committees are not able to provide an instant response to comments or questions

except in those cases where the matter has previously been addressed. For the same reason, IEEE does not

respond to interpretation requests. Any person who would like to participate in revisions to an IEEE

standard is welcome to join the relevant IEEE working group.
Comments on standards should be submitted to the following address:
Secretary, IEEE SA Standards Board
445 Hoes Lane
Piscataway, NJ 08854 USA
Laws and regulations

Users of IEEE Standards documents should consult all applicable laws and regulations. Compliance with the

provisions of any IEEE Standards document does not imply compliance to any applicable regulatory

requirements. Implementers of the standard are responsible for observing or referring to the applicable

regulatory requirements. IEEE does not, by the publication of its standards, intend to urge action that is not

in compliance with applicable laws, and these documents may not be construed as doing so.

Copyrights

IEEE draft and approved standards are copyrighted by IEEE under US and international copyright laws.

They are made available by IEEE and are adopted for a wide variety of both public and private uses. These

include both use, by reference, in laws and regulations, and use in private self-regulation, standardization,

and the promotion of engineering practices and methods. By making these documents available for use and

adoption by public authorities and private users, IEEE does not waive any rights in copyright to the

documents.
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 7 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Photocopies

Subject to payment of the appropriate fee, IEEE will grant users a limited, non-exclusive license to

photocopy portions of any individual standard for company or organizational internal use or individual, non-

commercial use only. To arrange for payment of licensing fees, please contact Copyright Clearance Center,

Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA; +1 978 750 8400. Permission to

photocopy portions of any individual standard for educational classroom use can also be obtained through

the Copyright Clearance Center.
Updating of IEEE Standards documents

Users of IEEE Standards documents should be aware that these documents may be superseded at any time

by the issuance of new editions or may be amended from time to time through the issuance of amendments,

corrigenda, or errata. An official IEEE document at any point in time consists of the current edition of the

document together with any amendments, corrigenda, or errata then in effect.

Every IEEE standard is subjected to review at least every 10 years. When a document is more than 10 years

old and has not undergone a revision process, it is reasonable to conclude that its contents, although still of

some value, do not wholly reflect the present state of the art. Users are cautioned to check to determine that

they have the latest edition of any IEEE standard.

In order to determine whether a given document is the current edition and whether it has been amended

through the issuance of amendments, corrigenda, or errata, visit IEEE Xplore at https://ieeexplore.ieee.org

or contact IEEE at the address listed previously. For more information about the IEEE SA or IEEE’s

standards development process, visit the IEEE SA Website at http://standards.ieee.org.

Errata

Errata, if any, for IEEE standards can be accessed via https://standards.ieee.org/standard/index.html. Search

for standard number and year of approval to access the web page of the published standard. Errata links are

located under the Additional Resources Details section. Errata are also available in IEEE Xplore:

https://ieeexplore.ieee.org/browse/standards/collection/ieee/. Users are encouraged to periodically check for

errata.
Patents

Attention is called to the possibility that implementation of this standard may require use of subject matter

covered by patent rights. By publication of this standard, no position is taken by the IEEE with respect to the

existence or validity of any patent rights in connection therewith. If a patent holder or patent applicant has

filed a statement of assurance via an Accepted Letter of Assurance, then the statement is listed on the IEEE

SA Website at https://standards.ieee.org/about/sasb/patcom/patents.html. Letters of Assurance may indicate

whether the Submitter is willing or unwilling to grant licenses under patent rights without compensation or

under reasonable rates, with reasonable terms and conditions that are demonstrably free of any unfair

discrimination to applicants desiring to obtain such licenses.

Essential Patent Claims may exist for which a Letter of Assurance has not been received. The IEEE is not

responsible for identifying Essential Patent Claims for which a license may be required, for conducting

inquiries into the legal validity or scope of Patents Claims, or determining whether any licensing terms or

conditions provided in connection with submission of a Letter of Assurance, if any, or in any licensing

agreements are reasonable or non-discriminatory. Users of this standard are expressly advised that

determination of the validity of any patent rights, and the risk of infringement of such rights, is entirely their

own responsibility. Further information may be obtained from the IEEE Standards Association.

Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 8 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Participants

The following individuals were officers and members of the IEEE 802.3 Working Group at the beginning of

the IEEE P802.3cn Working Group ballot.
David J. Law, IEEE 802.3 Working Group Chair
Adam Healey, IEEE 802.3 Working Group Vice-Chair
Pete Anslow, IEEE 802.3 Working Group Secretary
Steven B. Carlson, IEEE 802.3 Working Group Executive Secretary
Valerie Maguire, IEEE 802.3 Working Group Treasurer

John D’Ambrosia, IEEE P802.3cn 50 Gb/s, 200 Gb/s, and 400 Gb/s over Single-Mode Fiber

Task Force Chair

Pete Anslow, IEEE P802.3cn 50 Gb/s, 200 Gb/s, and 400 Gb/s over Single-Mode Fiber Task Force

Editor-in-Chief

Peter Stassar, IEEE P802.3cn 50 Gb/s, 200 Gb/s, and 400 Gb/s over Single-Mode Fiber Task Force

Editor for Clauses 122 and 139
John Abbott Hormoz Djahanshahi
John Johnson
David Abramson Curtis Donahue
Chad Jones
Andrea Agnes Liang Du
Peter Jones
Dale Amason Kathryn Dube
Lokesh Kabra
Hongming An Mike Dudek
Manabu Kagami
Jes Asmussen Marc Dupuis
Upen Kareti
Richard Baca Frank Effenberger
Yasuaki Kawatsu
David Estes
Tim Baggett
Yong Kim
John Ewen
Amrik Bains
Mark Kimber
Thananya Baldwin Borhan Fathi Moghadam
Jonathan King
Steven Baumgartner Vincent Ferretti
Michael Klempa
Denis Beaudoin Brian Franchuk
Curtis Knittle
Liav Ben-Artsi Matthias Fritsche
Piergiorgio Beruto Richard Frosch Elizabeth Kochuparambil
Vipul Bhatt Shiyong Fu Wojciech Koczwara
Gao Bo Mike Gardner
Paul Kolesar
Claude Gauthier
Brad Booth
Taiji Kondo
Martin Bouda Ali Ghiasi
Glen Kramer
David Brandt Joel Goergen
Olaf Krieger
Ralf-Peter Braun Zhigang Gong
Hans Lackner
Paul Brooks Steven Gorshe
Jeffrey Lapak
Alan Brown Jens Gottron
Mark Laubach
Matthew Brown Steffen Graber
Han Hyub Lee
Michal Brychta Olaf Grau
June Hee Lee
Gary Burrell Robert Grow
Alex Levin
Jairo Bustos Heredia Mark Gustlin
David Lewis
Adrian Butter Marek Hajduczenia
John Calvin Hayden Haynes Jon Lewis
Clark Carty Xiang He
David Li
Craig Chabot Howard Heck
Mike-Peng Li
David Chalupsky Rajmohan Hegde
Jane Lim
Frank Chang Brian Holden
Alex Lin
Xin Chang Rita Horner
Robert Lingle
Golam Choudhury Bernd Horrmeyer
Dekun Liu
Keng Hua Chuang Gergely Huszak
Hai-Feng Liu
Kamal Dalmia Yasuhiro Hyakutake
Karen Liu
Piers Dawe Jonathan Ingham
Zhenyu Liu
Fred Dawson Kazuhiko Ishibe
William Lo
John Deandrea Hideki Isono
Yuchun Lu
Gerrit den Besten Tom Issenhuth
Miklos Lukacs
Claudio DeSanti Kenneth Jackson
Chris Diminico Andrew Jimenez Kent Lusted
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 9 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Ilya Lyubomirsky Christopher Pohl Nathan Tracy
Zahy Madgar William Powell David Tremblay
Jeffery Maki Dino Pozzebon Stephen Trowbridge
David Malicoat Rick Rabinovich Ta Chin Tseng
Flavio Marques Zvi Rechtman Ed Ulrichs
Arthur Marris Alon Regev Alexander Umnov
Chris Mash Duane Remein Ricky Vernickel
Takeo Masuda Victor Renteria Marco Vitali
Kirsten Matheus Salvatore Rotolo Robert Voss
Erdem Matoglu Alexander Rysin Dylan Walker
Toshiaki Sakai
Marco Mazzini Haifei Wang
Hamid Salehi
Mick McCarthy Roy Wang
Brett McClellan Sam Sambasivan
Tongtong Wang
Larry McMillan Edward Sayre
Xinyuan Wang
Greg McSorley James Schuessler
Xuehuan Wang
Richard Mellitz Steve Sekel Christoph Wechsler
Martin Miller Masood Shariff Brian Welch
Toshiyuki Moritake Mizuki Shirao Matthias Wendt
Harald Mueller Jialong Shuai Natalie Wienckowski
Thomas Mueller Jeff Slavick James Withey
Edward Nakamoto Daniel Smith Mau-Lin Wu
Paul Neveux Scott Sommers Peter Wu
Gary Nicholl Tom Souvignier Markus Wucher
Shawn Nicholl Bryan Sparrowhawk Dayin Xu
John Nolan Edward Sprague Yu Xu
Kevin Noll Heath Stewart Shuto Yamamoto
Mark Nowell David Stover Adrian Young
David Ofelt Junqing Sun James Young
Josef Ohni Liyang Sun Lennart Yseboodt
Tom Palkert Steve Swanson Andrew Zambell
Sujan Pandey Bharat Tailor Conrad Zerna
Carlos Pardo Tomoo Takahara Richard (Yujia) Zhou
Earl Parsons Kohichi Tamura Yan Zhuang
Gerald Pepper Mehmet Tazebay Martin Zielinski
Phong Pham
Ronald Tellas George Zimmerman
David Piehler
Geoffrey Thompson Pavel Zivny
Rick Pimpinella Harald Zweck
Pirooz Tooyserkani
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 10 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)

The following members of the individual balloting committee voted on this standard. Balloters may have

voted for approval, disapproval, or abstention.
Rob Aekins David Hess Thomas Palkert
Thomas Alexander Werner Hoelzl Carlos Pardo
Rita Horner
Pete Anslow Bansi Patel
C. Huntley David Piehler
Burrell Best
Yasuhiro Hyakutake Rick Pimpinella
Rich Boyer
Atsushi Ito Adee Ran
Ralf-Peter Braun
Raj Jain
R. K. Rannow
Nancy Bravin
Peter Jones Alon Regev
Matthew Brown
Lokesh Kabra Robert Robinson
Demetrio Bucaneg
Piotr Karocki
Thomas Starai
Gary Burrell
Stuart Kerry Peter Stassar
Jairo Bustos Heredia
Yongbum Kim Walter Struppler
William Byrd
Mark Laubach Mitsutoshi Sugawara
John Calvin
David J. Law
James Theodoras
Steven B. Carlson
Hyeong Ho Lee David Thompson
Juan Carreon
David Lewis David Tremblay
Chan Chen
Jon Lewis Stephen Trowbridge
John D’Ambrosia
Michael Lynch Mark-Rene Uchida
Piers J. G. Dawe
Valerie Maguire Alexander Umnov
John Deandrea
Jeffery Maki Dmitri Varsanofiev
Marc Dupuis
David Malicoat George Vlantis
Avraham Freedman
Arthur Marris Lisa Ward
Ali Ghiasi
Michael Maytum Keith Waters
James Gilb
Richard Mellitz Chun Yu Charles Wong
Zhigang Gong
Paul Neveux
James Young
Randall Groves
Nick S. A. Nikjoo Yu Yuan
Marek Hajduczenia
Satoshi Obara Oren Yuen
Marco Hernandez Zhen Zhou

When the IEEE SA Standards Board approved this standard on 7 November 2019, it had the following

membership:
Gary Hoffman, Chair
Ted Burse, Vice Chair
Jean-Philippe Faure, Past Chair
Konstantinos Karachalios, Secretary
Masayuki Ariyoshi David J. Law Annette Reilly
Stephen D. Dukes Joseph Levy Dorothy Stanley
Howard Li Sha Wei
J. Travis Griffith
Guido Hiertz Xiaohui Liu Phil Wennblom
Christel Hunter Kevin Lu Philip Winston
Joseph L. Koepfinger* Daleep Mohla Howard Wolfman
Andrew Myles
Thomas Koshy Feng Wu
John D. Kulick Jingyi Zhou
*Member Emeritus
Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 11 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)
Introduction

This introduction is not part of IEEE Std 802.3cn-2019, IEEE Standard for Ethernet. Amendment 4: Physical Layers

and Management Parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s Operation over Single-Mode Fiber.

IEEE Std 802.3™ was first published in 1985. Since the initial publication, many projects have added

functionality or provided maintenance updates to the specifications and text included in the standard. Each

IEEE 802.3 project/amendment is identified with a suffix (e.g., IEEE Std 802.3ba™-2010).

The half duplex Media Access Control (MAC) protocol specified in IEEE Std 802.3-1985 is Carrier Sense

Multiple Access with Collision Detection (CSMA/CD). This MAC protocol was key to the experimental

Ethernet developed at Xerox Palo Alto Research Center, which had a 2.94 Mb/s data rate. Ethernet at

10 Mb/s was jointly released as a public specification by Digital Equipment Corporation (DEC), Intel and

Xerox in 1980. Ethernet at 10 Mb/s was approved as an IEEE standard by the IEEE Standards Board in 1983

and subsequently published in 1985 as IEEE Std 802.3-1985. Since 1985, new media options, new speeds of

operation, and new capabilities have been added to IEEE Std 802.3. A full duplex MAC protocol was added

in 1997.

Some of the major additions to IEEE Std 802.3 are identified in the marketplace with their project number.

This is most common for projects adding higher speeds of operation or new protocols. For example, IEEE

Std 802.3u™ added 100 Mb/s operation (also called Fast Ethernet), IEEE Std 802.3z added 1000 Mb/s

operation (also called Gigabit Ethernet), IEEE Std 802.3ae added 10 Gb/s operation (also called 10 Gigabit

Ethernet), IEEE Std 802.3ah™ specified access network Ethernet (also called Ethernet in the First Mile) and

IEEE Std 802.3ba added 40 Gb/s operation (also called 40 Gigabit Ethernet) and 100 Gb/s operation (also

called 100 Gigabit Ethernet). These major additions are all now included in and are superseded by IEEE Std

802.3-2018 and are not maintained as separate documents.

At the date of publication for IEEE Std 802.3cn-2019, IEEE Std 802.3 was composed of the following

documents:
IEEE Std 802.3-2018

Section One—Includes Clause 1 through Clause 20 and Annex A through Annex H and Annex 4A.

Section One includes the specifications for 10 Mb/s operation and the MAC, frame formats and

service interfaces used for all speeds of operation.

Section Two—Includes Clause 21 through Clause 33 and Annex 22A through Annex 33E. Section

Two includes management attributes for multiple protocols and speed of operation as well as

specifications for providing power over twisted pair cabling for multiple operational speeds. It also

includes general information on 100 Mb/s operation as well as most of the 100 Mb/s Physical Layer

specifications.

Section Three—Includes Clause 34 through Clause 43 and Annex 36A through Annex 43C. Section

Three includes general information on 1000 Mb/s operation as well as most of the 1000 Mb/s Physical

Layer specifications.

Section Four—Includes Clause 44 through Clause 55 and Annex 44A through Annex 55B. Section

Four includes general information on 10 Gb/s operation as well as most of the 10 Gb/s Physical Layer

specifications.

Section Five—Includes Clause 56 through Clause 77 and Annex 57A through Annex 76A. Clause 56

through Clause 67 and Clause 75 through Clause 77, as well as associated annexes, specify subscriber

access and other Physical Layers and sublayers for operation from 512 kb/s to 10 Gb/s, and defines

Copyright © 2019 IEEE. All rights reserved.
---------------------- Page: 12 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.4:2021(E)

services and protocol elements that enable the exchange of IEEE Std 802.3 format frames between

stations in a subscriber access network. Clause 68 specifies a 10 Gb/s Physical Layer specification.

Clause 69 through Clause 74 and associated annexes specify Ethernet operation over electrical

backplanes at speeds of 1000 Mb/s and 10 Gb/s.

Section Six—Includes Clause 78 through Clause 95 and Annex 83A through Annex 93C. Clause 78

specifies Energy-Efficient Ethernet. Clause 79 specifies IEEE 802.3 Organizationally Specific Link

Layer Discovery Protocol (LLDP) type, length, and value (TLV) information elements. Clause 80

through Clause 95 and associated annexes include general information on 40 Gb/s and 100 Gb/s

operation as well the 40 Gb/s and 100 Gb/s Physical Layer specifications. Clause 90 specifies Ethernet

support for time synchronization protocols.

Section Seven—Includes Clause 96 through Clause 115 and Annex 97A through Annex 115A.

Clause 96 through Clause 98, Clause 104, and associated annexes, specify Physical Layers and

optional features for 100 Mb/s and 1000 Mb/s operation over a single twisted pair. Clause 100 through

Clause 103, as well as associated annexes, specify Physical Layers for the
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.