ISO/IEC 15802-5:1998

Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Common specifications — Part 5: Remote Media Access Control (MAC) bridging

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseaux locaux et métropolitains — Spécifications communes — Partie 5: Pontage pour le contrôle d'accès aux supports (MAC) à distance

General Information

• Status: Withdrawn
• Publication Date: 20-May-1998
• Withdrawal Date: 20-May-1998
• ICS: 35.110 - Networking
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 07-Sep-2004

Standards Content (Sample)

ISOAEC
INTERNATIONAL
STANDARD 15802-5
ANSI/IEEE
Std 802.1 G
First edition
1998-05- 15
Information technology -
Telecommunications and information
exchange between systems - Local and
metropolitan area networks - Common
specifications -
Part 5:
Remote Media Access Control (MAC) bridging
Technologies de I’informa tion - T6Ecommunica tions et 6change
- Rkseaux locaux et mbtropolitains -
d ‘informa tion en tre s ys t&mes
Spkcifica tions communes -
Partie 5: Pontage pour le controle d’acc&s aux supports (MAC) & distance
Reference number
ISO/I EC 15802-5: 1998(E)
ANSI/IEEE
Std 802.1 G, 1998 edition

---------------------- Page: 1 ----------------------
International Standard lSO/IEC 15802=5:1998(E)
IS0 (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of IS0 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.
IS0 and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the
work.
In the field of information technology, IS0 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-S was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 6, Telecommunications and information exchange between
systems.
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 I: 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 and B form an integral part of this part of ISO/IEC 15802. Annexes C and D are for
information only.
International Organization for Standardization/International Electrotechnical Commission
Case postale 56 l CH- 1211 Geneve 20 l Switzerland

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International Standard lSO/lEC 15802-5: 1998(E)
ANSI/IEEE Std 802.1 G, 1998 Edition
Information technology-
Telecommunications and information
exchange between systems-
Local and metropolitan area networks-
Common specifications-
Part 5: Remote Media Access Control
(MAC) bridging
Sponsor
LAN MAN Standards Committee
of the
IEEE Computer Society
Adopted as an International Standard by the
International Organization for Standardization
and by the
International Electrotechnical Commission
Published by
The Institute of Electrical and Electronics Engineers, Inc.

---------------------- Page: 3 ----------------------
International Standard ISO/IEC 15802=5:1998(E)
IS0 (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of IS0 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.
IS0 and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the
work.
In the field of information technology, IS0 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 15802-5 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 6, Telecommunications and information exchange between
systems.
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 I: 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 and B form an integral part of this part of ISO/IEC 15802. Annexes C and D are for
information only.
International Organization for Standardization/International Electrotechnical Commission
Case postale 56 l CH-1211 Geneve 20 l Switzerland

---------------------- Page: 4 ----------------------
Foreword to International Standard lSO/IEC 1580245: 1998
This International Standard is part of a family of International Standards for Local and Metropolitan Area
Networks. The relationship between this International Standard, which provides extensions to the behavior
of ISO/IEC 10038, and the other members of the family is shown below. (The numbers in the figure refer to
ISO/IEC Standard numbers.)
8802 1 Overview
r
I
8802-2 Logical Link Control
Data
Link
8802-4 8802-5 8802-6 8802-9 8802-I 1 8802-I 2
8802-3
Layer
Medium Medium Medium Medium Medium Medium Medium
Access Access Access Access Access Access Access
--------
------_- _-_----- -------- --------.
Physical
8802-3 8802-4 8802-5 8802-6 8802-9 8802-I 1 8802-I 2
Layer
Physical Physical Physical Physical Physical Physical Physical
This family of International Standards deals with the Physical and Data Link layers as defined by the IS0
Open Systems Interconnection (OSI) Basic Reference Model (ISO/IEC 7498-l: 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:
ISO/IEC 8802-3, utilizing carrier sense multiple access with collision detection (CSMAKD) as the
a>
access method.
ISOIIEC 8802-4, utilizing token passing bus as the access method.
b)
ISO/IEC 8802-5, utilizing token passing ring as the access method.
C)
d) ISO/IEC 8802-6, utilizing distributed queuing dual bus as the access method.
ISO/IEC 8802-9, a unified access method offering integrated services for backbone networks.
e)
f) ISO/IEC DIS 8802- 11, a wireless LAN utilizing carrier sense multiple access with collision avoidance
(CSMAKA) as the access method.
ISO/IEC DIS 8802-12, utilizing Demand Priority as the access method.
9)
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.
ISOIIEC 15802-l) Medium Access Control (MAC) service deBnition, specifies the characteristics of the
common 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 OS1 management-compatible architecture, and
services and protocol elements for use in a LAN/MAN environment for performing remote management.
ISO/IEC 10038, Media Access Control (MAC) bridges, specifies an architecture and protocol for the intercon-
nection of IEEE 802 LANs below the level of the logical link control protocol (to be renumbered 15802-3).
ISO/IEC 15802-4, System Load Protocol, specifies a set of services and protocol for those aspects of manage-
ment 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 0 1998 IEEE. All rights reserved. 111

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ANSI/IEEE Std 802.1 G, 1998 Edition
IEEE Standards documents are developed within the Technical Committees of the IEEE Societies and the
Standards Coordinating Committees of the IEEE Standards Board. Members of the committees serve volun-
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the art. Users are cautioned to check to determine that they have the latest edition of any IEEE Standard.
Comments for revision of IEEE Standards are welcome from any interested party, regardless of membership
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Comments on standards and requests for interpretations should be addressed to:
Secretary, IEEE Standards Board
445 Hoes Lane
P.O. Box 1331
Piscataway, NJ 08855- 133 1
USA
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1v
Copyright 0 1998 IEEE. All rights reserved.

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Introduction to ANSI/IEEE Std 802.1G, 1998 Edition
(This introduction is not a part of ANSI/IEEE Std 802.1 G, 1998 Edition or of ISO/IEC 15802-5: 1998.)
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.)
I I
802.2 LOGICAL LINK CONTROL
DATA
802.1 BRIDGING
LINK
LAYER
802.9 802.11 802.12
MEDIUM MEDIUM MEDIUM
~~~~~ ACCESS ACCESS ACCESS
802.9 802.11 802.12
PHYSICAL
PHYSiCAL PHYSiCAL PHYSiCAL PHYSiCAL ‘HYSICAL PHYSICAL PHYSICAL
LAYER
II
* Formerly IEEE Std 802.1A.
This family of standards deals with the Physical and Data Link layers as defined by the International Organiza-
tion 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 access technologies are as follows:
Overview and Architecture. This standard provides an overview to the fam-
l IEEE Std 802
ily of IEEE 802 Standards.
l ANSI/IEEE Std 802.1B LAN/MAN Manaaement. Defines an OS1 management-compatible architec-
ture, and services”and protocol elements for usein a LAN&AN environ-
and 802.lk
ment for performing remote management.
[ISO/IEC 15802-21
Media Access Control (MAC) Bridges. Specifies an architecture and protocol
l ANSI/IEEE Std 802.1D
[ISO/IEC 100381 for the interconnection of IEEE 802 LANs below the MAC service boundary.
System Load Protocol. Specifies a set of services and protocol for those
l ANSI/IEEE Std 802.1E
aspects of management concerned with the loading of systems on IEEE 802
[ISO/IEC 15802-41
LANs.
Remote Media Access Control (MAC) Bridging. Specifies extensions for the
l ANSI/IEEE Std 802.1G
interconnection, using non-LAN communication technologies, of geographi-
[ISO/IEC 15802-51
cally separated IEEE 802 LANs below the level of the logical link control
protocol.
Logical Link Control
l ANSI/IEEE Std 802.2
[ISO/IEC 8802-21
CSMAKD Access Method and Physical Layer SpeciJications
l ANSI/IEEE Std 802.3
[ISO/IEC 8802-31
Copyright 0 1998 IEEE. All rights reserved.

---------------------- Page: 7 ----------------------
Token Passing Bus Access Method and Physical Layer Specifications
l ANSI/IEEE Std 802.4
[ISO/IEC 8802-41
Token Ring Access Method and Physical Layer Specifications
l ANSI/IEEE Std 802.5
[ISO/IEC 8802-51
l ANSI/IEEE Std 802.6 Distributed Queue Dual Bus Access Method and Physical Layer Specify-
[ISO/IEC 8802-61 cations
Integrated Services (IS) LAN Interface at the Medium Access Control
l ANSI/IEEE Std 802.9
.
[ISO/IEC 8802-91 (MAC) and Physical (PHY) Layers
Interoperable LAN/MAN Security
l ANSI/IEEE Std 802.10
l IEEE Std 802.11 Wireless LAN Medium Access Control (MAC) and Physical Layer Specify-
[ISO/IEC DIS 8802- 1 l] cations
Demand Priority Access Method, Physical Layer and Repeater Specifi-
l ANSI/IEEE Std 802.12
cations
[ISO/IEC DIS 8802-121
In addition to the family of standards, the following is a recommended practice for a common Physical
Layer technology:
l IEEE Std 802.7 IEEE Recommended Practice for Broadband Local Area Networks
The following additional working group has authorized standards projects under development:
l 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
conformance test methodology documents for the 802 family of standards. Thus the conformance test
documents for 802.3 are numbered 1802.3.
ANSI/IEEE Std 802.1 G, 1998 Edition [lSO/lEC 15802-5: 19981
10038 that provide for the
This standard specifies extensions to the architecture and protocol of ISO/IEC
separated IEEE 802 LANs
interconnection, using non-LAN communication technologies, of geographically
below the level of the logical link control protocol.
This standard contains state-of-the-art material. The area covered by this standard is undergoing evolution.
Revisions are possible 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 stan-
dards may be obtained from
Secretary, IEEE Standards Board
445 Hoes Lane
P.O. Box 1331
Piscataway, NJ 08855- 133 1
USA
vi Copyright 0 1998 IEEE. All rights reserved.

---------------------- Page: 8 ----------------------
IEEE 802 committee working documents are available from
IEEE Document Distribution Service
AlphaGraphics #35 Attn: P. Thrush
10201 N. 35th Avenue
Phoenix, AZ 8505 1
USA
Participants
The following is a list of participants in the Interworking effort of the IEEE Project 802.1 Working Group.
Voting members at the time of Working Group approval are marked with an asterisk (*).
William P. Lidinsky,* 802.1 Working Group Chair
Mick Seaman,* Interworking Task Group Chair
Alan M. Chambers,* Technical Editor
Floyd Backes* Sharam Hakimi Paul Ruocchio
John H. Hart* Rich Seifert
Robert Barrett
Amatzia Ben-Artzi Tony Jeffree Lee Sendelbach*
Jan-Olof Jemnemo* Steve Senum
Anthony Berent
Hal Keen* Himanshu Shah*
Orna Berry
Hans Lackner Rosemary Slager*
Laura Bridge*
Eugene Latham W. Earl Smith
James Carlo
Wen-Pai Lu Elysia Tan
Hon Wah Chin*
Andy Luque Robin Tasker*
George Clapp
John Messenger Patricia Thaler
Stephen W. Cooper*
John Montague Surya Varanasi
Paul Cowell*
Jorg Ottensmeyer* Peter Videcrantz
Robert S. Crowder
Richard Patti Trevor Warwick
Andy Davis*
Yonadav Perry* Bernd Widmann
Mike Dickerson
David Dyer-Bennett Brian Phillips* Michele Wright
John Pickens Michael D. Wright*
Paul Eastman
Lionel Geretz Paul Rosenblum Amnon Yacoby
Richard Gilbert Venkat Prasad Carolyn Zimmer
Ronald Presti
The following persons were on the balloting committee:
J. Scott Haugdahl Kinji Mori
Hassan M. Ahmed
Eli Herscovi tz David J. Morris
Bernhard Albert
Russell D. Housley Wayne D. Moyers
Jon M. Allingham
Jacob J. Hsu Shimon Muller
Kit Athul
Henry D. Keen Paul Nikolich
Peter K. Campbell
Peter M. Kelly Ellis S. Nolley
James T. Carlo
Gary C. Kessler Robert O’Hara
David E. Carlson
Yongbum Kim Donal O’Mahony
Alan M. Chambers
William G. Lane Joerg Ottensmeyer
Ian Crayford
Lanse M. Leach Roger Pandanda
Robert S. Crowder
Randolph S. Little Lucy W. Person
Sourav K. Dutta
Donald C. Loughry Thomas L. Phinney
Paul S. Eastman
Robert D. Love John R. Pickens
John E. Emrich
Sam M. Madani Vikram Prabhu
Philip H. Enslow
Peter Martini Kirk Preiss
Changxin Fan
Milan Merhar
John W. Fendrich David L. Propp
Bennett Meyer Vikram Punj
Michael A. Fischer
Richard H. Miller Andris Putnins
Harvey A. Freeman
David S. Millman
Robert J. Gagliano Brian M. Ramelson
James F. Mollenauer Fernando Ramos
Harry Gold
John E. Montague Edouard Y. Rocher
Patrick S. Gonia
Vll
Copyright 0 1998 IEEE. All rights reserved.

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James W. Romlein Donald A. Sheppard Barry M. Vornbrock
Michael A. Smith
Floyd E. Ross Yun-Che Wang
Efstathios D. Sykas
Christoph Ruland Donald F. Weir
Deepika Saxena Ahmed N. Tantawy Frank J. Weisser
Mick Seaman Patricia Thaler Raymond P. Wenig
Lee A, Sendelbach Geoffrey 0. Thompson Mingcheng Xu
Adarshpal S. Sethi Robert C. Tripi Oren Yuen
Mark-Rene Uchida
When the IEEE Standards Board approved this standard on 9 October 1996, it had the following
membership:
Donald C. Loughry, Chair Richard J. Holleman, Vice Chair
Andrew G. Salem, Secretary
E. G. “Al” Kiener Jose R. Ramos
Gilles A. Baril
Joseph L. Koepfinge? Arthur K. Reilly
Clyde R. Camp
Joseph A. Cannatelli Stephen R. Lambert Ronald H. Reimer
Stephen L. Diamond Lawrence V. McCall Gary S. Robinson
Harold E. Epstein L. Bruce McClung Ingo Rusch
Donald C. Fleckenstein Marco W. Migliaro John S. Ryan
Jay Forster* Mary Lou Padgett Chee Kiow Tan
Donald N. Heirman John W. Pope Leonard L. Tripp
Ben C. Johnson Howard L. Wolfman
*Member Emeritus
Also included are the following nonvoting IEEE Standards Board liaisons:
Satish K. Aggarwal
Alan H. Cookson
Chester C. Taylor
Valerie E. Zelenty
IEEE Standards Project Editor
ISO/IEC 15802-5: 1998 [ANSI/IEEE Std 802.1G, 1998 Edition] was approved by the American National
Standards Institute (ANSI) on 12 March 1997.
. . .
Vlll
Copyright 0 1998 IEEE. All rights reserved.

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Contents
PAGE
CLAUSE
1
1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
2. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
3. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
3.1 Definitions related to MAC bridging .
4
3.2 Definitions specific to remote MAC bridging .
7
3.3 Acronyms and abbreviations .
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Conformance
................................................................................................. 7
4.1 Static conformance requirements
8
4.2 Options .
............................................................ 9
4.3 Protocol implementation conformance statement (PICS)
9
Support of the MAC service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.
10
5.1 Provision and support of the MAC service .
12
5.2 Preservation of the MAC service .
12
5.3 Quality of service (QOS) maintenance .
12
5.3.1 Undetected error rate .
......................................... 12
5.4 Internal Sublayer Service provided within the remote MAC bridge
.................................... 14
5.5 Support of the Internal Sublayer Service by specific MAC procedures
............................................ 14
5.6 Support of the Internal Sublayer Service in remote bridge groups
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Principles of operation
14
6.1 Remote bridge operation .
14
6.1.1 Relay .
15
6.1.2 Filtering Information .
15
6.1.3 Bridge management .
16
6.2 Remote bridge architecture .
16
6.2.1 Architectural model of a remote bridge .
16
6.2.2 MAC relay entity .
17
..................................................................................................................................
6.2.3 Ports
17
6.2.4 Group communications entity .
18
6.2.5 Higher layer entities .
18
6.3 Model of operation of a single remote bridge .
24
6.4 Port states, active ports, and the active topology .
24
.........................................................................................................................
6.5 Frame reception
24
....................................................................................................................
6.6 Frame transmission
25
.......................................................................................................................
6.7 Frame forwarding
25
6.7.1 Forwarding conditions .
25
6.7.2 LLC duplicate address check .
26
..................................................................................................................
6.7.3 Queued frames
26
...............................................................................................................
6.7.4 Priority mapping
27
6.7.5 Frames addressed to the remote bridge .
ix
Copyright 0 1998 IEEE. All rights reserved.

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27
..................................................................................................................
6.8 The learning process
28
.................................................................................................................
6.9 The filtering database
28
......................................................................................................................
6.9.1 Static entries
28
................................................................................................................
6.92 Dynamic entries
29
...........................................................................................................
6.93 Permanent database
29
................................................................................................................
6.10 Bridge protocol entity
29
...................................................................................................................
6.11 Bridge management
30
.................................................................................................................................
6.12 Addressing
30
....................................................................................
6.13 Model of remote bridge interconnection
30
..................................................................................
613.1 Roles and objectives of the model
31
....................................................................................................
6.13.2 Elements of the model
...................... 3 1
6.13.3 Static configuration: remote bridge groups, virtual ports, and subgroups
32
.............................................................
613.4 The active topology and remote bridge clusters
34
................................................................................................
613.5 Functions of virtual ports
34
..........................
6.13.6 Examples of configurations of remote bridge groups and virtual ports
37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Spanning Tree Algorithm and Protocol
7.
37
................................................................................................................................
7.1 Introduction
.......................
...