IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks
Sponsored by the
LAN/MAN Standards Committee
IEEE
3 Park Avenue
New York, NY 10016-5997
USA
IEEE Computer Society
IEEE Std 802.1Q™-2014
(Revision of
IEEE Std 802.1Q-2011)
Authorized licensed use limited to: Harry Potter. Downloaded on June 16,2018 at 03:55:10 UTC from IEEE Xplore. Restrictions apply.
Authorized licensed use limited to: Harry Potter. Downloaded on June 16,2018 at 03:55:10 UTC from IEEE Xplore. Restrictions apply.
IEEE Std 802.1Q™-2014
(Revision of
IEEE Std 802.1Q-2011)
IEEE Standard for
Local and metropolitan area networks—
Bridges and Bridged Networks
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 3 November 2014
IEEE-SA Standards Board
Authorized licensed use limited to: Harry Potter. Downloaded on June 16,2018 at 03:55:10 UTC from IEEE Xplore. Restrictions apply.
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2014 by The Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 19 December 2014. 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 978-0-7381-9433-2 STD20044
Print: ISBN 978-0-7381-9434-9 STDPD20044
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.
Abstract: This standard specifies how the Media Access Control (MAC) Service is supported by
Bridged Networks, the principles of operation of those networks, and the operation of MAC Bridges
and VLAN Bridges, including management, protocols, and algorithms
Keywords: Bridged Network, IEEE 802.1Q™, LAN, local area network, MAC Bridge, metropolitan
area networks, MSTP, Multiple Spanning Tree Protocol, Rapid Spanning Tree Protocol, RSTP,
PBN, Provider Bridged Network, Shortest Path Bridging Protocol, SPB Protocol, Virtual Bridged
Network, virtual LAN, VLAN Bridge
Authorized licensed use limited to: Harry Potter. Downloaded on June 16,2018 at 03:55:10 UTC from IEEE Xplore. Restrictions apply.
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 Notice” or “Important Notices and Disclaimers Concerning IEEE Standards Documents.”
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.
Volunteers 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 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.
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.
Authorized licensed use limited to: Harry Potter. Downloaded on June 16,2018 at 03:55:10 UTC from IEEE Xplore. Restrictions apply.
