Physical layer specifications and management parameters for 25 Gb/s and 50 Gb/s passive optical networks

Spécifications de couche physique et paramètres de gestion pour réseaux optiques passifs à 25 Gb/s et 50 Gb/s

General Information

Status
Published
Publication Date
14-Dec-2021
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
18-Nov-2021
Completion Date
17-Nov-2021
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FINAL
ISO/IEC/IEEE
AMENDMENT
DRAFT
8802-3:2021
FDAM 9
ISO/IEC JTC 1/SC 6
Telecommunications and exchange
Secretariat: KATS
between information technology
Voting begins on:
2021-06-30 systems — Requirements for local and
metropolitan area networks —
Voting terminates on:
2021-11-17
Part 3:
Standard for Ethernet
AMENDMENT 9: Physical layer
specifications and management
parameters for 25 Gb/s and 50 Gb/s
passive optical networks
Télécommunications et échange entre systèmes informatiques —
Exigences pour les réseaux locaux et métropolitains —
Partie 3: Norme pour Ethernet
AMENDEMENT 9
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 9:2021(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 2020
---------------------- Page: 1 ----------------------
ISO/IEC/IEEE 8802-3:2021/FDAM 9:2021(E)
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ii © IEEE 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC/IEEE 8802-3:2021/FDAM 9:2021(E)
Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical

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www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards.

ISO/IEC/IEEE 8802-3:2021/Amd 9 was prepared by the LAN/MAN of the IEEE Computer Society (as

[IEEE Std 802.3 ca -2020) 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,

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© IEEE 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
IEEE Std 802.3ca™-2020
(Amendment to IEEE Std 802.3™-2018
as amended by IEEE Std 802.3cb™-2018,
IEEE Std 802.3bt™-2018,
IEEE Std 802.3cd™-2018,
IEEE Std 802.3cn™-2019,
IEEE Std 802.3cg™-2019,
IEEE Std 802.3cq™-2020,
IEEE Std 802.3cm™-2020,
and IEEE Std 802.3ch™-2020)
IEEE Standard for Ethernet
Amendment 9:
Physical Layer Specifications and
Management Parameters for 25 Gb/s and
50 Gb/s Passive Optical Networks
Developed by the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 4 June 2020
IEEE SA Standards Board
---------------------- Page: 4 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)

Abstract: This amendment to IEEE Std 802.3-2018 extends the operation of Ethernet passive

optical networks (EPONs) to multiple channels of 25 Gb/s providing both symmetric and

asymmetric operation for the following data rates (downstream/upstream): 25/10 Gb/s,

25/25 Gb/s, 50/10 Gb/s, 50/25 Gb/s, and 50/50 Gb/s. This standard specifies the 25 Gb/s EPON

Multi-Channel Reconciliation Sublayer (MCRS), Nx25G-EPON Physical Coding Sublayers

(PCSs), Physical Media Attachment (PMA) sublayers, and Physical Medium Dependent (PMD)

sublayers that support both symmetric and asymmetric data rates while maintaining backward

compatibility with already deployed 10 Gb/s EPON equipment. Backward compatibility with

deployed 1G-EPON and ITU-T G.984 GPON is maintained with 25GBASE-PQ for the specific

case of 1G-EPON and GPON ONUs using reduced-band (40 nm) lasers. The EPON operation is

defined for distances of at least 20 km, and for a split ratio of at least 1:32.

Keywords: 25 Gb/s Ethernet passive optical networks (25G-EPON), 50 Gb/s Ethernet passive

optical networks (50G-EPON), amendment, forward error correction (FEC), IEEE 802.3™,

IEEE 802.3ca™, Multi-Channel Reconciliation Sublayer (MCRS), Multipoint MAC Control

(MPMC), Physical Coding Sublayer (PCS), Physical Media Attachment (PMA), Physical Medium

Dependent (PMD), PON, Point-to-Multipoint (P2MP)
The Institute of Electrical and Electronics Engineers, Inc.
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PDF: ISBN 978-1-5044-6768-1 STD24221
Print: ISBN 978-1-5044-6769-8 STDPD24221
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written permission of the publisher.
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ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)
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ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)
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ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)
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---------------------- Page: 8 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)
Participants

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

the IEEE P802.3ca 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, Phase 1
Jon Lewis, IEEE 802.3 Working Group Secretary, Phase 2
Steven B. Carlson, IEEE 802.3 Working Group Executive Secretary
Valerie Maguire, IEEE 802.3 Working Group Treasurer
Curtis Knittle, IEEE P802.3ca Nx25G-EPON Task Force Chair
Glen Kramer, IEEE P802.3ca Nx25G-EPON Task Force Vice-Chair
Marek Hajduczenia, IEEE P802.3ca Nx25G-EPON Task Force Editor-in-Chief
John Abbott Liang Du Yasuaki Kawatsu
Kathryn Dube
David Abramson Yong Kim
Mike Dudek
Andrea Agnes Mark Kimber
Marc Dupuis Jonathan King
Dale Amason
Hongming An Frank Effenberger Michael Klempa
Jes Asmussen David Estes Elizabeth Kochuparambil
Richard Baca John Ewen Wojciech Koczwara
Borhan Fathi Moghadam
Tim Baggett Paul Kolesar
Vincent Ferretti Taiji Kondo
Amrik Bains
Thananya Baldwin Brian Franchuk Olaf Krieger
Steven Baumgartner Matthias Fritsche Hans Lackner
Denis Beaudoin Richard Frosch Jeffrey Lapak
Liav Ben-Artsi Shiyong Fu Mark Laubach
Mike Gardner Han Hyub Lee
Piergiorgio Beruto
Vipul Bhatt Claude Gauthier June Hee Lee
Gao Bo Ali Ghiasi Alex Levin
Martin Bouda Joel Goergen Jon Lewis
David Brandt Zhigang Gong David Li
Steven Gorshe
Ralf-Peter Braun Mike-Peng Li
Jens Gottron Jane Lim
Paul Brooks
Alan Brown Steffen Graber Alex Lin
Matthew Brown Olaf Grau Dekun Liu
Michal Brychta Robert Grow Hai-Feng Liu
Gary Burrell Mark Gustlin Karen Liu
Hayden Haynes Zhenyu Liu
Jairo Bustos Heredia
Adrian Butter Xiang He William Lo
John Calvin Howard Heck Yuchun Lu
Clark Carty Brian Holden Miklos Lukacs
Craig Chabot Rita Horner Kent Lusted
Bernd Horrmeyer Ilya Lyubomirsky
David Chalupsky
Frank Chang Gergely Huszak Jeffery Maki
Xin Chang Yasuhiro Hyakutake David Malicoat
Golam Choudhury Jonathan Ingham Flavio Marques
Keng Hua Chuang Kazuhiko Ishibe Arthur Marris
Kamal Dalmia Hideki Isono Chris Mash
Tom Issenhuth Takeo Masuda
John D'Ambrosia
Piers Dawe Kenneth Jackson Kirsten Matheus
Fred Dawson Andrew Jimenez Erdem Matoglu
John Deandrea John Johnson Marco Mazzini
Gerrit den Besten Chad Jones Mick McCarthy
Brett McClellan
Claudio DeSanti Peter Jones
Chris Diminico Lokesh Kabra Larry McMillan
Hormoz Djahanshahi Manabu Kagami Greg McSorley
Curtis Donahue Upen Kareti Richard Mellitz
Copyright © 2020 IEEE. All rights reserved.
---------------------- Page: 9 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)
Sam Sambasivan
Martin Miller Ricky Vernickel
Toshiyuki Moritake Edward Sayre
Marco Vitali
Thomas Mueller James Schuessler
Robert Voss
Edward Nakamoto Steve Sekel
Dylan Walker
Paul Neveux Masood Shariff
Haifei Wang
Gary Nicholl Mizuki Shirao
Roy Wang
Shawn Nicholl Jialong Shuai
Tongtong Wang
John Nolan Jeff Slavick
Xinyuan Wang
Kevin Noll Daniel Smith
Xuehuan Wang
Mark Nowell Scott Sommers
Christoph Wechsler
David Ofelt Tom Souvignier
Brian Welch
Josef Ohni Bryan Sparrowhawk
Matthias Wendt
Tom Palkert Edward Sprague
Natalie Wienckowski
Sujan Pandey Peter Stassar
James Withey
Carlos Pardo Heath Stewart
Mau-Lin Wu
Earl Parsons David Stover
Peter Wu
Gerald Pepper Junqing Sun
Markus Wucher
Phong Pham Liyang Sun
Dayin Xu
David Piehler Steve Swanson
Yu Xu
Rick Pimpinella Bharat Tailor
Shuto Yamamoto
Christopher Pohl Tomoo Takahara
Adrian Young
William Powell Kohichi Tamura
James Young
Dino Pozzebon Mehmet Tazebay
Lennart Yseboodt
Rick Rabinovich Ronald Tellas
Andrew Zambell
Zvi Rechtman Geoffrey Thompson
Conrad Zerna
Alon Regev Pirooz Tooyserkani
Richard (Yujia) Zhou
Duane Remein Nathan Tracy
Yan Zhuang
Victor Renteria David Tremblay
Martin Zielinski
Salvatore Rotolo Stephen Trowbridge
George Zimmerman
Alexander Rysin Ta Chin Tseng
Pavel Zivny
Toshiaki Sakai Ed Ulrichs
Hamid Salehi Alexander Umnov Harald Zweck

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

voted for approval, disapproval, or abstention.
Thomas Alexander Werner Hoelzl Satoshi Obara
Nancy Bravin Yasuhiro Hyakutake Thomas Palkert
Carlos Pardo
Matthew Brown Raj Jain
Bansi Patel
Demetrio Bucaneg, Jr. SangKwon Jeong
Dev Paul
Jairo Bustos Heredia Lokesh Kabra
Arumugam Paventhan
William Byrd Stuart Kerry
David Piehler
Steven B. Carlson Yongbum Kim
William Powell
Juan Carreon Curtis Knittle
R. K. Rannow
Clark Carty Glen Kramer
Maximilian Riegel
Pin Chang Mark Laubach
Robert Robinson
Xin Chang David J. Law
Benjamin Rolfe
Chan Chen Pi-Cheng Law
Dieter Schicketanz
Joseph Coffey Han Hyub Lee
Thomas Starai
Charles Cook Hyeong Ho Lee
Mitsutoshi Sugawara
John Deandrea David Lewis
Ronald Tellas
Claudio DeSanti Jon Lewis
Geoffrey Thompson
Vincent Ferretti Karen Liu
David Tremblay
Avraham Freedman Javier Luiso
Mark-Rene Uchida
Matthias Fritsche Valerie Maguire
Dmitri Varsanofiev
Joel Goergen Jeffery Maki
George Vlantis
David Malicoat
Zhigang Gong
Lisa Ward
Brett McClellan
Randall Groves
Karl Weber
Martin Gubow Richard Mellitz
Andreas Wolf
Marek Hajduczenia Tremont Miao
Yu Yuan
Adam Healey Raymond Nering
Oren Yuen
Marco Hernandez Paul Neveux
Zhen Zhou
David Hess Paul Nikolich
Pavel Zivny
Copyright © 2020 IEEE. All rights reserved.
---------------------- Page: 10 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)

When the IEEE SA Standards Board approved this standard on 4 June 2020, it had the following

membership:
Gary Hoffman, Chair
Jon Walter Rosdahl, Vice Chair
Jean-Philippe Faure, Past Chair
Konstantinos Karachalios, Secretary
Ted Burse David J. Law Mehmet Ulema
J. Travis Griffith Howard Li Lei Wang
Grace Gu Dong Liu Sha Wei
Guido R. Hiertz Kevin Lu Philip B. Winston
Joseph L. Koepfinger* Paul Nikolich Daidi Zhong
Damir Novosel
John D. Kulick Jingyi Zhou
Dorothy Stanley
*Member Emeritus
Copyright © 2020 IEEE. All rights reserved.
---------------------- Page: 11 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(E)
Introduction

This introduction is not part of IEEE Std 802.3ca-2020, IEEE Standard for Ethernet. Amendment 9: Physical Layer

Specifications and Management Parameters for 25 Gb/s and 50 Gb/s Passive Optical Networks.

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 IEEE Std 802.3ca-2020 publication, 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 © 2020 IEEE. All rights reserved.
---------------------- Page: 12 ----------------------
ISO/IEC/IEEE 8802-3:2021/Amd.9:2021(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

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