ISO/IEC 15802-3:1998
(Main)Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Common specifications — Part 3: Media Access Control (MAC) Bridges
Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Common specifications — Part 3: Media Access Control (MAC) Bridges
Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseaux locaux et métropolitains — Spécifications communes — Partie 3: Ponts du Contrôle d'accès au support
General Information
Relations
Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 15802-3
ANSI/IEEE
Std 802.1D
First edition
1998-12-01
Information technology —
Telecommunications and information
exchange between systems — Local and
metropolitan area networks — Common
specifications —
Part 3:
Media Access Control (MAC) Bridges
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseaux locaux et métropolitains —
Spécifications communes —
Partie 3: Ponts de contrôle d'accès au support
Reference number
ISO/IEC 15802-3:1998(E)
ANSI/IEEE
bc
Std 802.1D, 1998 edition
---------------------- Page: 1 ----------------------
ISO/IEC 15802-3: 1998
ANSI/IEEE Std 802.1D, 1998 Edition
(Revision and redesignation of
ISO/IEC 10038: 1993
[ANSI/IEEE Std 802.1D, 1993 Edition],
incorporating IEEE supplements
P802.1p, 802.1j-1996, 802.6k-1992,
802.11c-1998, and P802.12e)
Information technology—
Telecommunications and information exchange
between systems—
Local and metropolitan area networks—
Common specifications—
Part 3: Media Access Control (MAC) Bridges
Sponsor
LAN MAN Standards Committee
of the
IEEE Computer Society
---------------------- Page: 2 ----------------------
International Standard ISO/IEC 15802-3:1998(E)
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.
In the field of information technology, ISO and IEC have established a joint technical committee,
ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to
national bodies for voting. Publication as an International Standard requires approval by at least 75 % of
the national bodies casting a vote.
International Standard ISO/IEC 15802-3 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 6, Telecommunications and information exchange between
systems.
This edition cancels and replaces ISO/IEC 10038:1993.
ISO/IEC 15802 consists of the following parts, under the general title Information technology —
Telecommunications and information exchange between systems — Local and metropolitan area
networks — Common specifications:
— Part 1: Medium Access Control (MAC) service definition
— Part 2: LAN/MAN management
— Part 3: Media Access Control (MAC) Bridges
— Part 4: System load protocol
— Part 5: Remote Media Access Control (MAC) bridging
Annexes A, C, D and E form an integral part of this part of ISO/IEC 15802. Annexes B, F, G and H are
for information only.
B C
International Organization for Standardization/International Electrotechnical Commission
Case postale 56 • CH-1211 Genève 20 • Switzerland
ii
---------------------- Page: 3 ----------------------
Foreword to International Standard ISO/IEC 15802-3: 1998
This International Standard is part of a family of International Standards for Local and Metropolitan Area
Networks. The relationship between this International Standard and the other members of the family is
shown below. (The numbers in the figure refer to ISO/IEC Standard numbers.)
8802-1 Overview
8802-2 Logical Link Control
Data
Link
8802-3 8802-4 8802-5 8802-6 8802-9 8802-11 8802-12
Layer
Medium Medium Medium Medium Medium Medium Medium
Access
Access Access Access Access Access Access
8802-3 Physical
8802-4 8802-5 8802-6 8802-9 8802-11 8802-12
Physical Layer
Physical Physical Physical Physical Physical Physical
This family of International Standards deals with the Physical and Data Link layers as defined by the ISO/
IEC Open Systems Interconnection (OSI) Basic Reference Model (ISO/IEC 7498-1 : 1994). The access
standards define seven types of medium access technologies and associated physical media, each appropriate
for particular applications or system objectives. Other types are under investigation.
The International Standards defining the access technologies are as follows:
a) ISO/IEC 8802-3, utilizing carrier sense multiple access with collision detection (CSMA/CD) as the
access method.
b) ISO/IEC 8802-4, utilizing token passing bus as the access method.
c) ISO/IEC 8802-5, utilizing token passing ring as the access method.
d) ISO/IEC 8802-6, utilizing distributed queuing dual bus as the access method.
e) ISO/IEC 8802-9, a unified access method offering integrated services for backbone networks.
f) ISO/IEC DIS 8802-11, a wireless LAN utilizing carrier sense multiple access with collision avoid-
ance (CSMA/CA) as the access method.
g) ISO/IEC 8802-12, utilizing Demand Priority as the access method.
ISO/IEC TR 8802-1, Overview of Local Area Network Standards, provides an overview of the series of ISO/
IEC 8802 standards.
ISO/IEC 8802-2, Logical Link Control, is used in conjunction with the medium access standards to provide
the data link layer service to network layer protocols.
ISO/IEC 15802-1, Medium Access Control (MAC) service definition, specifies the characteristics of the com-
mon MAC Service provided by all IEEE 802 LAN MACs. The service is defined in terms of primitives that
can be passed between peer service users, their parameters, their interrelationship and valid sequences, and
the associated events of the service.
ISO/IEC 15802-2, LAN/MAN Management, defines an OSI management-compatible architecture, and ser-
vices and protocol elements for use in a LAN/MAN environment for performing remote management.
ISO/IEC 15802-3, Media Access Control (MAC) Bridges, specifies an architecture and protocol for the inter-
connection of IEEE 802 LANs below the level of the logical link control protocol.
ISO/IEC 15802-4, System Load Protocol, specifies a set of services and protocol for those aspects of man-
agement concerned with the loading of systems on IEEE 802 LANs.
ISO/IEC 15802-5, Remote Media Access Control (MAC) bridging, specifies extensions for the interconnec-
tion, using non-LAN communication technologies, of geographically separated IEEE 802 LANs below the
level of the logical link control protocol.
Copyright © 1998 IEEE. All rights reserved. iii
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ANSI/IEEE Std 802.1D, 1998 Edition
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iv Copyright © 1998 IEEE. All rights reserved.
---------------------- Page: 5 ----------------------
Introduction to ANSI/IEEE Std 802.1D, 1998 Edition
[This introduction is not part of ANSI/IEEE Std 802.1D, 1998 Edition, Information technology—Telecommunications
and information exchange between systems—Local and metropolitan area networks—Common specifications—Part 3:
Media Access Control (MAC) Bridges.]
This standard is part of a family of standards for local and metropolitan area networks. The relationship
between the standard and other members of the family is shown below. (The numbers in the figure refer to
IEEE standard numbers.)
802.2 LOGICAL LINK CONTROL
DATA
802.1 BRIDGING
LINK
LAYER
802.3 802.4 802.5 802.6 802.9 802.11 802.12 802.14
MEDIUM MEDIUM MEDIUM MEDIUM MEDIUM MEDIUM MEDIUM MEDIUM
ACCESS ACCESS ACCESS ACCESS ACCESS ACCESS ACCESS ACCESS
802.3 802.4 802.5 802.6 802.9 802.11 802.12 802.14
PHYSICAL
PHYSICAL PHYSICAL PHYSICAL PHYSICAL PHYSICAL PHYSICAL PHYSICAL PHYSICAL
LAYER
* Formerly IEEE Std 802.1A.
This family of standards deals with the Physical and Data Link layers as defined by the International Organi-
zation for Standardization (ISO) Open Systems Interconnection (OSI) Basic Reference Model (ISO/IEC
7498-1 : 1994). The access standards define seven types of medium access technologies and associated
physical media, each appropriate for particular applications or system objectives. Other types are under
investigation.
The standards defining the technologies noted above are as follows:
• IEEE Std 802 Overview and Architecture. This standard provides an overview to the fam-
ily of IEEE 802 Standards.
• ANSI/IEEE Std 802.1B LAN/MAN Management. Defines an OSI management-compatible architec-
and 802.1k ture, and services and protocol elements for use in a LAN/MAN environ-
[ISO/IEC 15802-2] ment for performing remote management.
• ANSI/IEEE Std 802.1D Media Access Control (MAC) Bridges. Specifies an architecture and protocol
[ISO/IEC 15802-3] for the interconnection of IEEE 802 LANs below the MAC service boundary.
• ANSI/IEEE Std 802.1E System Load Protocol. Specifies a set of services and protocol for those aspects
[ISO/IEC 15802-4] of management concerned with the loading of systems on IEEE 802 LANs.
• ANSI/IEEE Std 802.1F Common Definitions and Procedures for IEEE 802 Management Information
• ANSI/IEEE Std 802.1G Remote Media Access Control (MAC) bridging. Specifies extensions for the
[ISO/IEC 15802-5] interconnection, using non-LAN communication technologies, of geographically
separated IEEE 802 LANs below the level of the logical link control protocol.
• ANSI/IEEE Std 802.2 Logical link control
[ISO/IEC 8802-2]
Copyright © 1998 IEEE. All rights reserved. v
802.10 SECURITY
802 OVERVIEW & ARCHITECTURE*
802.1 MANAGEMENT
---------------------- Page: 6 ----------------------
• ANSI/IEEE Std 802.3 CSMA/CD access method and physical layer specifications
[ISO/IEC 8802-3]
• ANSI/IEEE Std 802.4 Token passing bus access method and physical layer specifications
[ISO/IEC 8802-4]
• ANSI/IEEE Std 802.5 Token ring access method and physical layer specifications
[ISO/IEC 8802-5]
• ANSI/IEEE Std 802.6 Distributed Queue Dual Bus (DQDB) access method and physical layer
[ISO/IEC 8802-6] specifications
• ANSI/IEEE Std 802.9 Integrated Services (IS) LAN Interface at the Medium Access Control
[ISO/IEC 8802-9] (MAC) and Physical (PHY) Layers
• ANSI/IEEE Std 802.10 Interoperable LAN/MAN Security
• ANSI/IEEE Std 802.11 Wireless LAN Medium Access Control (MAC) and physical layer specifi-
[ISO/IEC DIS 8802-11] cations
• ANSI/IEEE Std 802.12 Demand-priority access method, physical layer and repeater specifica-
[ISO/IEC 8802-12] tions
In addition to the family of standards, the following is a recommended practice for a common Physical
Layer technology:
• IEEE Std 802.7 IEEE Recommended Practice for Broadband Local Area Networks
The following additional working group has authorized standards projects under development:
• IEEE 802.14 Standard Protocol for Cable-TV Based Broadband Communication Network
Conformance test methodology
An additional standards series, identified by the number 1802, has been established to identify the conform-
ance test methodology documents for the 802 family of standards. Thus the conformance test documents for
802.3 are numbered 1802.3.
ANSI/IEEE Std 802.1D, 1998 Edition
The MAC Bridge standardization activities that resulted in the development of IEEE Std 802.1D-1990 (sub-
sequently republished as ISO/IEC 10038:1993 [IEEE Std 802.1D, 1993 Edition]) specified an architecture
and protocol for the interconnection of IEEE 802 LANs below the MAC Service boundary. IEEE Std
802.1D-1990 also introduced the concept of filtering services in Bridged LANs, and mechanisms whereby
filtering information in such LANs may be acquired and held in a Filtering Database. This revision of ISO/
IEC 10038: 1993 extends this concept of filtering services in order to define additional capabilities in
Bridged LANs aimed at the following:
a) The provision of expedited traffic capabilities, to support the transmission of time-critical informa-
tion in a LAN environment;
b) The provision of filtering services that support the dynamic definition and establishment of Groups
in a LAN environment, and the filtering of frames by Bridges such that frames addressed to a given
vi Copyright © 1998 IEEE. All rights reserved.
---------------------- Page: 7 ----------------------
Group are forwarded only on those LAN segments that are required in order to reach the members of
that Group.
To this end, this document incorporates a set of changes and additions to ISO/IEC 10038: 1993 that define
the following:
a) The nature of Filtering Services in Bridged LANs;
b) The concept of Traffic Classes and the effect on the operation of the Forwarding Process of support-
ing multiple Traffic Classes in Bridges;
c) The structure of the Filtering Database that is needed in order to support Dynamic Multicast Filter-
ing services;
d) The registration protocol that is required in order to provide Dynamic Multicast Filtering Services;
e) The management services and operations that are required in order to support administration of
Dynamic Multicast Filtering Services.
Relationship between IEEE Std 802.1D and IEEE P802.1Q
A further IEEE standard under development, IEEE P802.1Q, extends the concepts of filtering services and
MAC Bridging in order to provide a set of capabilities that allow MAC Bridges to support the definition and
management of Virtual LANs (VLANs).
The capabilities defined in IEEE P802.1Q include the definition of a VLAN frame format that is able to
carry VLAN identification and user priority information over LAN technologies, such as CSMA/CD, that
have no inherent capability to signal priority information. This information is carried in an additional header
field, known as the Tag Header, which is inserted immediately following the Destination MAC Address, and
Source MAC Address (and Routing Information field, if present) of the original frame. IEEE P802.1Q
extends the priority handling aspects of this standard to make use of the ability of the VLAN frame format to
carry user priority information end to end across any set of concatenated underlying MACs.
The VLAN Bridging specification contained in IEEE 802.1Q is independent of this standard, in the sense
that IEEE 802.1Q makes a separate and distinct statement of the conformance requirements for VLAN
Bridges from the conformance requirements for MAC Bridges defined in this standard. However, IEEE
802.1Q makes use of many of the elements of the specification contained in this standard, in particular
a) The Bridge architecture;
b) The Internal Sublayer Service, and the specification of its provision by IEEE 802 LAN MACs;
c) The major features of the operation of the Forwarding Process;
d) The Spanning Tree Algorithm and Protocol;
e) The Generic Attribute Registration Protocol (GARP); and
f) The GARP Multicast Registration Protocol (GMRP).
Copyright © 1998 IEEE. All rights reserved. vii
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Participants
The following is a list of participants in the Interworking activities of the IEEE 802.1 Working Group. Voting
members at the time of publication are marked with an asterisk (*).
William P. Lidinsky, Chair*
Mick Seaman, Chair, Interworking Task Group*
Tony Jeffree*, Editor
Steve Adams* Gaby Hecht Yonadav Perry
Stephen Ades Deepak Hegde* John Pickens*
Ariel Hendel
Ken Alonge Gideon Prat
Floyd Backes* John Hickey Kirk Preiss
John Bartlett* David Hollender Steve Ramberg*
Steve Horowitz*
Les Bell* Shlomo Reches*
Avner Ben-Dor Michelle Hsiung Dick Reohr
Michael Berger* Rita Hunt James Richmond*
James S. Binder* David Husak Anil Rijsinghani*
Altaf Hussain*
David Brady Doug Ruby
Martin Brewer Vipin K. Jain* Ray Samora
Bill Bunch* Neil Jarvis Ayman Sayed*
Tony Jeffree*
Bob Cardinal Mick Seaman*
Allen Kasey
Paul Carroll* Rich Seifert
Jeffrey Catlin* Toyoyuki Kato* Lee Sendelbach*
Dennis Cave Hal Keen* Himanshu Shah*
Kevin Ketchum*
Alan Chambers* Phil Simmons*
Steve Chan Keith Klamm* K. Karl Shimada
David W. Chang* Bruce Kling* Fred Shu
Ken Chapman Walter Knitl Paramjeet Singh*
Dan Krent*
Hon Wah Chin* Rosemary V. Slager*
Chi Chong Paul Kummer Alexander Smith*
Chris Christ* Paul Lachapelle* Andrew Smith*
Bill Lane
Paul Congdon* Larry Stefani*
Glenn Connery* Paul Langille* Stuart Soloway*
David Cullerot* Bill Lidinsky* Sundar Subramaniam*
Ted Davies* Johann Lindmeyr* Richard Sweatt
Gary Littleton
Andy Davis Robin Tasker*
David Delaney* Robert D. Love Fouad Tobagi
Prakash Desai Andy Luque Naoki Tsukutari
Peter Martini
Jeffrey Dietz* Dhadesugoor Vaman
Keith McCloghrie Steve Van Seters*
Kurt Dobbins
Peter Ecclesine* Martin McNealis Dono van-Mierop*
J. J. Ekstrom* Milan Merhar* John Wakerly*
John Messenger*
Norman W. Finn* Peter Wang*
Yishai Fraenkel Colin Mick Philip Wang
Paul Frantz Amol Mitra Y. C. Wang*
Yaron Nachman*
Lars Henrik Frederiksen* Trevor Warwick*
Krishna Narayanaswamy*
Anoop Ghanwani* Bob Watson
John Grinham Paul Nikolich Alan Weissberger
Steve Haddock Lawrence Ng* Glenn Wenig
Henry Ngai*
Sharam Hakimi* Keith Willette*
John Hart* Eugene O’Neil Michael Witkowski*
Scott Harvell Satoshi Obara* Edward Wong*
Wayne Hathaway Toshio Ooka* Michael D. Wright*
Jorg Ottensmeyer*
Richard Hausman* Michele Wright*
Vic Hayes Luc Pariseau* Allen Yu*
David Head* Wayne Zakowski*
viii Copyright © 1998 IEEE. All rights reserved.
---------------------- Page: 9 ----------------------
The following persons were on the balloting committee of IEEE Std 802.1D:
William B. Adams Tony Jeffree Robert O’Hara
Kit Athul Edward R. Kelly Charles Oestereicher
William E. Ayen Peter M. Kelly Joerg Ottensmeyer
Yongbum Kim
Thomas W. Bailey Roger Pandanda
Brad J. Booth Thaddeus Kobylarz Lucy W. Person
Peter K. Campbell Daniel R. Krent John R. Pickens
James T. Carlo Stephen Barton Kruger Vikram Punj
David E. Carlson Kenneth C. Kung Andris Putnins
Alan M. Chambers William G. Lane Edouard Y. Rocher
Frederick N. Chase David J. Law James W. Romlein
Lanse M. Leach
Robert S. Crowder Floyd E. Ross
Thomas J. Dineen William Lidinsky Christoph Ruland
Peter Ecclesine Randolph S. Little Norman Schneidewind
John W. Fendrich Joseph G. Maley Mick Seaman
Michael A. Fischer Peter Martini Rich Seifert
Harvey A. Freeman Chris McDonald Michael A. Smith
Patrick S. Gonia Milan Merhar William R. Smith
John L. Messenger
Julio Gonzalez-Sanz Patricia Thaler
Robert M. Grow Bennett Meyer Geoffrey O. Thompson
Chris G. Guy Colin K. Mick Mark-Rene Uchida
Stephen R. Haddock Gene E. Milligan John Viaplana
David S. Millman
Allen W. Hathaway Barry M. Vornbrock
J. Scott Haugdahl Warren Monroe Donald F. Weir
Kenneth C. Heck John E. Montague Earl J. Whitaker
Henry Hoyt Wayne D. Moyers Qian-li Yang
Raj Jain Shimon Muller Oren Yuen
Neil A. Jarvis Paul Nikolich Jonathan M. Zweig
When the IEEE-SA Standards Board approved IEEE Std 802.1D on 25 June 1998, it had the following
membership:
Richard J. Holleman, Chair Donald N. Heirman, Vice Chair
Judith Gorman, Secretary
Satish K. Aggarwal James H. Gurney L. Bruce McClung
Clyde R. Camp Jim D. Isaak Louis-François Pau
James T. Carlo Lowell G. Johnson Ronald C. Petersen
Gary R. Engmann Robert Kennelly Gerald H. Peterson
Harold E. Epstein E. G. “Al” Kiener John B. Posey
Jay Forster* Joseph L. Koepfinger* Gary S. Robinson
Thomas F. Garrity Stephen R. Lambert Hans E. Weinrich
Ruben D. Garzon Jim Logothetis Donald W. Zipse
Donald C. Loughry
*Member Emeritus
Kristin M. Dittmann
IEEE Standards Project Editor
Copyright © 1998 IEEE. All rights reserved. ix
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IEEE Std 802.11c-1998
IEEE Std 802.11c-1998 adds the necessary information to map the IEEE 802.11 MAC parameters onto ISO/
IEC 15802-3 (IEEE Std 802.1D) parameters.
Participants
At the time the draft of IEEE Std 802.11c was sent to sponsor ballot, the IEEE 802.11 working group had the
following voting members:
Victor Hayes, Chair
Victoria M. Poncini, Task Group Chair
Jeff Abramowitz Tim Godfrey Al Petrick
Keith B. Amundsen Jan Haagh Bob Pham
Carl F. Andren Karl Hannestad Stanley A. Reible
Kazuhiro Aoyagi Robert Heile William Roberts
Maarten Hoeben
David Bagby Kent G. Rollins
Phil Belanger Duane Hurne Oren Rosenfeld
John Biddick Masayuki Ikeda Michael Rothenberg
Simon Black Richard Jai Clemens C.W. Ruppel
Donald C. Johnson
Jan Boer Chandos Rypinski
Ronald Brockmann Nobuo Karaki Anil K. Sanwalka
Wesley Brodsky Dean M. Kawaguchi Roy Sebring
John H. Cafarella Stuart J. Kerry Mike Shiba
Naftali Chayat Isao Masaki Thomas Siep
Ken Clements Jim McDonald Donald I. Sloan
Wim Diepstraten Gene Miller Hitoshi Takanashi
Akira Miura
Darrol Draper Satoru Toguchi
Peter Ecclesine Masaharu Mori Cherry Tom
Darwin Engwer Masahiro Morikura Mike Trompower
John Fakatselis Ravi P. Nalamati Tom Tsoulogiannis
Jeff Fischer Colin Nayler Sarosh Vesuna
Matthew Fischer Richard van Nee Nien C. Wei
Michael Fischer Bob O’Hara Harry Worstell
Tomoki Ohsawa
George Fishel Timothy M. Zimmerman
John Fisher Kazuhiro Okanoue Johnny Zweig
Motohiro Gochi Richard H. Paine Jim Zyren
Major contributions were received from Henri Moelard.
x Copyright © 1998 IEEE. All rights reserved.
---------------------- Page: 11 ----------------------
The following persons were on the balloting committee of 802.11c:
Kit Athul A. Kamerman Ronald C. Petersen
Thomas W. Bailey Dean M. Kawaguchi John R. Pickens
Peter K. Campbell Edward R. Kelly Alberto Profumo
James T. Carlo Peter M. Kelly Vikram Punj
David E. Carlson Gary C. Kessler Fernando Ramos
Brian J. Casey Yongbum Kim James A. Renfro
Stephen Barton Kruger
Naftali Chayat Everett Rigsbee III
Robert S. Crowder Joseph Kubler Edouard Y. Rocher
Wim Diepstraten Jan Kurys James W. Romlein
Thomas J. Dineen Lanse M. Leach Floyd E. Ross
Jai Yong Lee
Christos Douligeris Michael Rothenberg
Paul S. Eastman Randolph S. Little Christoph Ruland
John E. Emrich Ronald Mahany Anil K. Sanwalka
Philip H. Enslow Peter Martini Norman Schneidewind
Changxin Fan Bennett Meyer James E. Schuessler
John W. Fendrich Gene E. Milligan Rich Seifert
Michael A. Fischer David S. Millman Leo Sintonen
Warren Monroe
Harvey A. Freeman Patricia Thaler
Robert J. Gagliano John E. Montague Mike Trompower
Gautam Garai Wayne D. Moyers Mark-Rene Uchida
Patrick S. Gonia Shimon Muller Sarosh N. Vesuna
Julio Gonzalez-Sanz Ken Naganuma John Viaplana
Chris G. Guy Paul Nikolich James Vorhies
J. Scott Haugdahl Robert O’Hara Barry M. Vornbrock
Donal O’Mahony
Vic Hayes Qian-li Yang
Donald N. Heirman Charles Oestereicher Oren Yuen
Henry Hoyt Young Oh Chris Zegelin
Raj Jain John M. Osepchuk Jonathan M. Zweig
Roger Pandanda
Tony Jeffree
When the IEEE-SA Standards Board approved IEEE Std 802.11c on 16 September 1998, it had the follow-
ing membership:
Richard J. Holleman, Chair Donald N. Heirman, Vice Chair
Judith Gorman, Secretary
Satish K. Aggarwal James H. Gurney L. Bruce McClung
Clyde R. Camp Jim D. Isaak Louis-François Pau
James T. Carlo Lowell G. Johnson Ronald C. Petersen
Gary R. Engmann Robert Kennelly Gerald H. Peterson
Harold E. Epstein E. G. “Al” Kiener John B. Posey
Jay Forster* Joseph L. Koepfinger* Gary S. Robinson
Thomas F. Garrity Stephen R. Lambert Hans E. Weinrich
Ruben D. Garzon Jim Logothetis Donald W. Zipse
Donald C. Loughry
*Member Emeritus
Kristin M. Dittmann
IEEE Standards Project Editor
Copyright © 1998 IEEE. All rights reserved. xi
---------------------- Page: 12 ----------------------
Abstract: The concept of Media Access Control (MAC) Bridging, introduced in the 1993 edition of
this standard, has been expanded to define additional capabilities in Bridged LANs aimed at pro-
viding for expedited traffic capabilities, to support the transmission of time-critical information in a
LAN environment; and providing filtering services that support the dynamic use of Group MAC Ad-
dresses in a LAN environment.
Keywords: local area networks, MAC Bridge management, MAC bridges, media access control
(MAC) bridges, multicast address filtering, traffic class expediting
The Institute of Electrical and Electronics Engineers, Inc.
345 East 47th Street, New York, NY 10017-2394, USA
Copyright © 1998 by the Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 10 December 1998. Printed in the United States of America.
Print: ISBN 0-7381-0329-2 SH94651
PDF: ISBN 0-7381-1416-2 SS94651
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: 13 ----------------------
Contents
1. Overview. 1
1.1 Introduction. 1
1.2 Scope. 1
2. References. 3
3. Definitions. 6
3.1 Bridged Local Area Network .6
3.2 Expedited traffic. 6
3.3 Group . 6
3.4 IEEE 802 Local Area Network (LAN) . 6
4. Abbreviations. 7
5. Conformance. 8
5.1 Static conformance requirements.
...
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