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1、IEEE Std 802.1ad-2005 (Amendment to IEEE Std 802.1Q-2005) I E E E Standard for Local and metropolitan area networks Virtual Bridged Local Area Networks Amendment 4: Provider Bridges I E E E 3 Park Avenue New York, NY 10016-5997, USA 26 May 2006 IEEE Computer Society Sponsored by the LAN/MAN Standard
2、s Committee Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright The Inst
3、itute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- Recognized as an American National Standard (ANS
4、I) IEEE Std 802.1ad-2005 (Amendment to IEEE Std 802.1QTM-2005) IEEE Standard for Local and metropolitan area networks Virtual Bridged Local Area Networks Amendment 4: Provider Bridges Sponsor LAN/MAN Standards Committee of the IEEE Computer Society Approved 28 March 2006 American National Standards
5、Institute Approved 7 December 2005 IEEE-SA Standards Board Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted wi
6、thout license from IHS -,-,- The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2006 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 26 May 2006. Printed in the United States of America. IEEE
7、 and 802 are registered trademarks in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. NOTEAttention is called to the possibility that implementation of this standar
8、d may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents for which a license may be required by
9、 an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for R
10、esale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ivCopyright 2006 IEEE. All rights reserved. Introduction Notice to users Errata Errata, if any, for this and all other recommended practices can be accessed at the following URL: http:/ standards.iee
11、e.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodically. Interpretations Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that im
12、plementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents or patent
13、applications for which a license may be required to implement an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. A patent holder or patent applicant has filed a statement of assurance that it will grant licenses under the
14、se rights without compensation or under reasonable rates and nondiscriminatory, reasonable terms and conditions to applicants desiring to obtain such licenses. The IEEE makes no representation as to the reasonableness of rates, terms, and conditions of the license agreements offered by patent holder
15、s or patent applicants. Further information may be obtained from the IEEE Standards Department. This introduction is not part of IEEE Std 802.1ad, IEEE Standards for Local and Metropolitan Area Networks Virtual Bridged Local Area NetworksAmendment 4: Provider Bridges. Copyright The Institute of Elec
16、trical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 2006 IEEE. All rights reserved. v Participants The
17、following is a list of participants in the Interworking activities of the IEEE 802.1 Working Group. Tony Jeffree, Chair Mick Seaman, Chair, Interworking Task Group Stephen Haddock, Editor The following members of the individual balloting committee voted on this amendment. Balloters may have voted fo
18、r approval, disapproval, or abstention. Mike Borza Paul Bottorf Jim Burns Dirceu Cavendish Arjan de Heer Russell Dietz Linda Dunbar Anush Elangovan Hesham Elbakoury David Elie-Dit-Cosaque Don Fedyk Norm Finn Davidi Frattura Anoop Ghanwani Ken Grewal Takashi Hasegawa Romain Insler Ran Ish-Shalom Mich
19、ael Johas Teener Hal Keen Yongbum Kim Loren Larsen Yannick Le Goff David Martin John Messenger Dinesh Mohan Bob Moskowitz Don OConnor Karen ODonoghue Glenn Parsons Ken Patton Ray Qiu Karen Randall Allyn Romanow Dan Romascanu Jessy V. Rouyer Ali Sajassi Panagiotis Saltsidis Sam Sambasivan John Sauert
20、 Koichiro Seto Curtis Simonson Bob Sultan Muneyoshi Suzuki Yoshihiro Suzuki Francois Tallet John Viega Dennis Volpano Manoj Wadekar Ludwig Winkel Michael D. Wright Brandon Barry Les Bell Mike Borza Paul Bottorf Jim Burns Dirceu Cavendish Paul Congdom Sharam Davari Arjan de Heer Craig Easley Anush El
21、angovan Helsham Elbakoury David Elie-Dit-Cosaque Norm Finn David Farttura Gerard Goubert Stephen Haddock Ran Ish-Shalom Atsushi Iwata Neil Jarvis Tony Jeffree Hal Keen Yongbum Kim Shobhan Lakkapragada Bill Lane Loren Larson Yannick Le Goff Marcus Leech John Messenger Dinesh Mohan Bob Moskowitz Don O
22、Connor Don Pannell Glenn Parsons Karen Randall Allyn Romanow Dan Romascanu Jessy V. Rouyer Ali Sajassi Dolors Sala Sam Sambasivan John Sauer Mick Seaman Koichiro Seto Muneyoshi Suzuki Jonathan Thatcher Geoff Thompson Michel Thorsen Jonathan R. Thatcher John Viega Preeti Vinayakray-Jani John Vollbrec
23、ht Dennis Volpano Karl Weber Ludwig Winkel Michael D. Wright Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted
24、without license from IHS -,-,- viCopyright 2006 IEEE. All rights reserved. When the IEEE-SA Standards Board approved this amendment on 7 December 2005, it had the following membership: Steve M. Mills, Chair Richard H. Hulett, Vice Chair Don Wright, Past Chair Judith Gorman, Secretary *Member Emeritu
25、s Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish K. Aggarwal, NRC Representative Richard DeBlasio, DOE Representative Alan H. Cookson, NIST Representative Jennie M. Steinhagen IEEE Standards Project Editor Mark D. Bowman Dennis B. Brophy Joseph Bruder Richard Cox
26、Bob Davis Julian Forster* Joanna N. Guenin Mark S. Halpin Raymond Hapeman William B. Hopf Lowell G. Johnson Herman Koch Joseph L. Koepfinger* David J. Law Daleep C. Mohla Paul Nikolich T. W. Olsen Glenn Parsons Ronald C. Petersen Gary S. Robinson Frank Stone Malcolm V. Thaden Richard L. Townsend Joe
27、 D. Watson Howard L. Wolfman Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- C
28、opyright 2006 IEEE. All rights reserved. vii Historical participants Since the initial publication, many IEEE standards have added functionality or provided updates to material included in this standard. The following is a historical list of participants who have dedicated their valuable time, energ
29、y, and knowledge to the creation of this material: IEEE 802.1Q Standard Date approved by IEEE Officers at the time of Working Group Letter Ballot IEEE Std 802.1Q-1998 IEEE Std 802.1u-2001 IEEE Std 802.1v-2001 IEEE Std 802.1s-2002 8 December 1998 17 March 2001 17 March 2001 11 December 2002 William P
30、. Lidinsky, Chair Mick Seaman, Chair, Interworking Task Group Tony Jeffree, Coordinating Editor Anil Rijsinghani, Richard Hausmann, Michele Wright, Paul Langille, P. J. Singh, Editorial Team Tony Jeffree, Chair Neil Jarvis, Vice Chair Mick Seaman, Chair, Interworking Task Group Tony Jeffree, Chair N
31、eil Jarvis, Vice Chair Mick Seaman, Chair, Interworking Task Group David Delany, Editor Andrew Smith, Editor Tony Jeffree, Chair Neil Jarvis, Vice Chair Mick Seaman, Chair, Interworking Task Group Norm W. Finn, Editor Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by
32、IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- viiiCopyright 2006 IEEE. All rights reserved. Steve Adams Stephen Ades Ken Alonge Floyd Backes John Bartlett Les
33、 Bell Avner Ben-Dor Michael Berger James S. Binder David Brady Martin Brewer Bill Bunch Bob Cardinal Paul Carroll Jeffrey Catlin Dennis Cave Alan Chambers Steve Chan David W. Chang Ken Chapman Hon Wah Chin Chi Chong Chris Christ Marc Cochran Paul Congdon Glenn Connery David Cullerot Ted Davies Andy
34、Davis Prakash Desai Jeffrey Dietz Kurt Dobbins Peter Ecclesine J. J. Ekstrom Hesham El Bakoury Yishai Fraenkel Paul Frantz Lars Henrik Frederiksen Anoop Ghanwani John Grinham Steve Haddock Sharam Hakimi John Hart Scott Harvell Wayne Hathaway Vic Hayes David Head Gaby Hecht Deepak Hegde Ariel Hendel
35、John Hickey David Hollender Steve Horowitz Bob Hott Michelle Hsiung Rita Hunt David Husak Altaf Hussain Ran Ish-Shalom Vipin K. Jain Shyam Kaluve Allen Kasey Toyayuki Kato Hal Keen Daniel Kelley Kevin Ketchum Keith Klamm Bruce Kling Walter Knitl Dan Krent Paul Kummer Paul Lachapelle Bill Lane Loren
36、Larsen Johann Lindmeyr Gary Littleton Robert D. Love Andy Luque Peter Martini Keith McCloghrie Martin McNealis Milan Merhar John Messenger Colin Mick Amol Mitra Yaron Nachman Krishna Narayanaswamy Paul Nikolich Lawrence Ng Henry Ngai Satoshi Obara Eugene ONeil Toshio Ooka Jrg Ottensmeyer Luc Parisea
37、u Yonadav Perry John Pickens Gideon Prat Kirk Preiss Steve Ramberg Shlomo Reches Frank Reichstein Dick Reohr James Richmond John J. Roese Doug Ruby Ray Samora Ayman Sayed Ted Schroeder Benjamin Schultz Rich Seifert Lee Sendelbach Himanshu Shah K. Karl Shimada Fred Shu Phil Simmons Curtis Simonson Ro
38、semary V. Slager Alexander Smith Michel Soerensen Larry Stefani Stuart Soloway Sundar Subramaniam Richard Sweatt Robin Tasker Michel Thorsen Fouad Tobagi Naoki Tsukutari Dhadesugoor Vaman Steve Van Seters Dono van-Mierop Manoj Wadekar John Wakerly Peter Wang Philip Wang Y. C. Wang Trevor Warwick Bob
39、 Watson Alan Weissberger Glenn Wenig Keith Willette Robert Williams Michael Witkowski Edward Wong Michael D. Wright Allen Yu Wayne Zakowski Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS
40、Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright 2006 IEEE. All rights reserved. ix Figures Figure 6-3Service access priority selection. 14 Figure 9-1 VC-TAG TCI format 22 Figure 9-2 S-TAG TCI format. 23 Figure 15-1Internal organ
41、ization of the MAC sublayer in a Provider Bridged Network 40 Figure 15-2Port-based service interface to a Provider Bridged Network 41 Figure 15-3Port-based service interface to a Provider Bridged Network 42 Figure 15-4C-tagged service interface to a Provider Bridged Network 42 Figure 15-5C-tagged se
42、rvice interface to a Provider Bridged Network 42 Figure 15-6Customer Edge Ports. 43 Figure 15-7S-tagged service interface to a Provider Bridged Network. 43 Figure 15-8S-tagged interface to a Provider Bridged Network. 44 Figure 16-1Provider Bridged Network with interface examples. 47 Copyright The In
43、stitute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without license from IHS -,-,- xCopyright 2006 IEEE. All rights reserved. Tab
44、les Table 6-3Priority Code Point encoding. 12 Table 6-4Priority Code Point decoding. 12 Table 6-5Service Access Priority 15 Table 8-1C-VLAN component Reserved addresses 18 Table 8-2S-VLAN component Reserved addresses 19 Table 9-1802.1Q Ethernet Type allocations 22 Table G-4Priority Code Point encodi
45、ng 58 Table G-5Priority Code Point decoding 59 Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 02:42:03 MDTNo reproduction or networking permitted without licens
46、e from IHS -,-,- Copyright 2006 IEEE. All rights reserved. xi Contents 1.Overview. 1 1.1 Scope 1 3.Definitions 3 4. Abbreviations. 5 5.Conformance. 6 5.2 Conformant components and equipment. 6 5.3 Protocol Implementation Conformance Statement (PICS) 6 5.4 VLAN-aware Bridge component requirements. 6
47、5.5 C-VLAN component conformance 7 5.6 S-VLAN component conformance 7 5.7 VLAN Bridge conformance. 8 5.8 Provider Bridge conformance 8 6. Support of the MAC Service in VLANs. 10 6.6 Enhanced Internal Sublayer Service 10 6.7 Support of the EISS . 10 6.9 Support of the ISS for attachment to a Provider
48、 Bridged Network. 13 6.10 Support of the ISS within a system. 16 6.11 Support of the ISS by additional technologies 16 8. Principles of bridge operation. 17 8.1 Bridge operation 17 8.6 The Forwarding Process 17 8.12 Bridge Management Entity. 20 8.13 Addressing 20 9.Tagged frame format 22 9.5 Tag Protocol Identification 22 9.6 Customer VLAN Tag Contr