Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Specific requirements — Part 1Q: Bridges and bridged networks — Amendment 7: Cyclic queuing and forwarding

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseaux locaux et métropolitains — Exigences spécifiques — Partie 1Q: Ponts et réseaux pontés — Amendement 7: Mise en file d'attente et transfert par cycle

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INTERNATIONAL ISO/IEC/
STANDARD IEEE
8802-1Q
First edition
2016-03-15
AMENDMENT 7
2019-02
Information technology —
Telecommunications and information
exchange between systems — Local
and metropolitan area networks —
Specific requirements —
Part 1Q:
Bridges and bridged networks
AMENDMENT 7: Cyclic queuing and
forwarding
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseaux locaux et métropolitains —
Exigences spécifiques —
Partie 1Q: Ponts et réseaux pontés
AMENDEMENT 7: Mise en file d'attente et transfert par cycle
Reference number
ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
©
 IEEE 2017

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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)

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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
Foreword
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ISO/IEC/IEEE 8802‐1Q:2016/Amd.7 was prepared by the LAN/MAN of the IEEE Computer Society
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iii

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IEEE Std 802.1Qch™-2017
(Amendment to
IEEE Std 802.1Q™-2014
as amended by
IEEE Std 802.1Qca™-2015,
IEEE Std 802.1Qcd™-2015,
IEEE Std 802.1Q-2014/Cor 1-2015,
IEEE Std 802.1Qbv™-2015,
IEEE Std 802.1Qbu™-2016,
IEEE Std 802.1Qbz™-2016, and
IEEE Std 802.1Qci™-2017)
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks—
Amendment 29: Cyclic Queuing and Forwarding
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 18 May 2017
IEEE-SA Standards Board

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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
Abstract: The use of traffic scheduling and per-stream filtering and policing to support cyclic
queuing and forwarding are described in this amendment to IEEE Std 802.1Q-2014.
®
Keywords: Bridged Local Area Networks, cyclic queuing and forwarding (CQF), IEEE 802 ,
IEEE 802.1Q™, IEEE Std 802.1Qbu™, IEEE 802.1Qbv™, IEEE 802.1Qch™, IEEE 802.1Qci™,
local area networks (LANs), MAC Bridges, metropolitan area networks, scheduled traffic, Virtual
Bridged Local Area Networks (virtual LANs)
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Print: ISBN 978-1-5044-4095-0 STD22629
PDF: ISBN 978-1-5044-4096-7 STDPD22629
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(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
Tony Jeffree, Editor
SeoYoung Baek Patrick Heffernan Karen Randall
Marc Holness
Shenghua Bao Maximilian Riegel
Jens Bierschenk Tony Jeffree Jessy Rouyer
Steinar Bjornstad Michael Johas Teener Eero Ryyty
Christian Boiger Hal Keen Soheil Samii
Paul Bottorff Stephan Kehrer Behcet Sarikaya
David Chen Philippe Klein Frank Schewe
Feng Chen Jouni Korhonen Michael Seaman
Weiying Cheng
Yizhou Li Johannes Specht
Rodney Cummings Christophe Mangin Patricia Thaler
Norman Finn Tom McBeath Paul Unbehagen
Mickael Fontaine James McIntosh Hao Wang
Geoffrey Garner Robert Moskowitz Karl Weber
Eric W. Gray Tero Mustala Brian Weis
Craig Gunther Hiroki Nakano Jordon Woods
Marina Gutierrez
Bob Noseworthy Nader Zein
Stephen Haddock Donald R. Pannell Helge Zinner
Mark Hantel Walter Pienciak Juan Carlos Zuniga
Michael Potts
The following members of the individual balloting committee voted on this standard. Balloters may have
voted for approval, disapproval, or abstention.
Mark Hantel
Thomas Alexander Matthew Mora
Butch Anton Marco Hernandez Henry Muyshondt
Stefan Aust Guido Hiertz Michael Newman
Gordon Bechtel Werner Hoelzl Charles Ngethe
Steinar Bjornstad Rita Horner Satoshi Obara
Christian Boiger Noriyuki Ikeuchi Glenn Parsons
Nancy Bravin Osamu Ishida Bansi Patel
William Byrd Atsushi Ito Adee Ran
Juan Carreon Raj Jain Alon Regev
Keith Chow Tony Jeffree Robert Robinson
Charles Cook SangKwon Jeong Benjamin Rolfe
Rodney Cummings Peter Jones Dan Romascanu
Eugene Dai Jeritt Kent Osman Sakr
Patrick Diamond Stuart Kerry Frank Schewe
Michael Seaman
Sourav Dutta Yongbum Kim
Marc Emmelmann Jeff Koftinoff Thomas Starai
János Farkas Jouni Korhonen Walter Struppler
Norman Finn Bruce Kraemer Patrik Sundstrom
Michael Fischer John Lemon Steven Tilden
Yukihiro Fujimoto Joseph Levy Mark-Rene Uchida
Devon Gayle Jon Lewis Prabodh Varshney
Eric W. Gray Arthur H. Light George Vlantis
Randall Groves Elvis Maculuba Karl Weber
Craig Gunther Arthur Marris Andreas Wolf
Stephen Haddock Charles Moorwood Oren Yuen
Marek Hajduczenia Zhen Zhou
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
When the IEEE-SA Standards Board approved this standard on 18 May 2017, 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:2016/Amd.7:2019(E)
Introduction
This introduction is not part of IEEE Std 802.1Qch-2017, IEEE Standard for Local and metropolitan area networks—
Bridges and Bridged Networks—Amendment 29: Cyclic Queuing and Forwarding.
This amendment to IEEE Std 802.1Q-2014 describes the use of traffic scheduling and per-stream filtering
and policing to support cyclic queuing and forwarding.
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 08854-4141
USA
8
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
Contents
2. Normative references . 12
4. Abbreviations . 13
5. Conformance . 14
5.4 VLAN Bridge component requirements. 14
5.13 MAC Bridge component requirements. 14
5.28 End station requirements—Cyclic queuing and forwarding. 14
Annex A (normative) PICS proforma—Bridge implementations . 16
A.5 Major capabilities . 16
A.14 Bridge management . 16
A.24 Management Information Base (MIB) . 16
A.44 Scheduled traffic . 17
A.45 Per-stream filtering and policing .17
Annex B (normative) PICS proforma—End station implementations . 18
B.5 Major capabilities . 18
B.15 Scheduled traffic . 18
B.16 Per-stream filtering and policing .19
Annex T (informative) Cyclic queuing and forwarding . 20
T.1 Overview of CQF. 20
T.2 An approach to CQF implementation. 21
T.3 Use of per-stream filtering and policing for CQF. 22
T.4 Use of traffic scheduling for CQF . 23
T.5 Timing considerations. 24
Annex U (informative) Bibliography . 28
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
List of figures
Figure T-1 Example PSFP configuration for QCF. 23
Figure T-2 Traffic scheduling example for CQF . 24
Figure T-3 Example PSFP configuration with two values of T. 25
Figure T-4 Traffic scheduling example with two values of T. 25
Figure T-5 Interleaving example—factor of 2 . 26
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
IEEE Std 802.1Qch-2017
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks—
Amendment 29: Cyclic Queuing and Forwarding
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks—
Amendment 29: Cyclic Queuing and Forwarding
(This amendment is based on IEEE Std 802.1Q™-2014 as amended by IEEE Std 802.1Qca™-2015,
IEEEStd 802.1Qcd™-2015, IEEE Std 802.1Q-2014/Cor 1-2015, IEEEStd 802.1Qbv™-2015,
IEEE Std 802.1Qbu™-2016, IEEE Std 802.1Qbz™-2016, and IEEE Std 802.1Qbci™-2017)
NOTE—The editing instructions contained in this amendment define how to merge the material contained therein into
the existing base standard and its amendments to form the comprehensive standard.
The 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. Deletions
and 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
1
changes will be incorporated into the base standard.
1
Notes in text, tables, and figures are given for information only, and do not contain requirements needed to implement the standard.
11
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
IEEE Std 802.1Qch-2017
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks—
Amendment 29: Cyclic Queuing and Forwarding
2. Normative references
Insert the following references in alphanumeric order:
IEEE Std 802.1Qbv™, IEEE Standard for Local and metropolitan area networks—Bridges and Bridged
Networks—Amendment 25: Enhancements for Scheduled Traffic.
IEEE Std 802.1Qci™, IEEE Standard for Local and metropolitan area networks—Bridges and Bridged
Networks—Amendment 28: Per-Stream Filtering and Policing.
NOTE—IEEE Std 802.1Qbv and IEEE Std 802.1Qci are both amendments to IEEE Std 802.1Q-2014, as is this
standard. This NOTE and the references to IEEE Std 802.1Qbv and IEEE P802.1Qci will be removed when this standard
is incorporated into the IEEE 802.1Q base standard in the next revision.
12
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ISO/IEC/IEEE 8802-1Q:2016/Amd.7:2019(E)
IEEE Std 802.1Qch-2017
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks—
Amendment 29: Cyclic Queuing and Forwarding
4. Abbreviations
Insert the following abbreviation in alphanumeric order:
CQF cyclic queuing and fo
...

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