802.3af-POE协议，更多资料见微信公众号：硬件工程师炼成之路EEE St 802.3af-2

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详细说明：802.3af-POE协议，更多资料见微信公众号：硬件工程师炼成之路EEE St 802.3af-2003 Amendment to lEEE Std 802.3-2002 including ieee Std 802. 3ae-2002 IEEE Standard for Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Carrier Sense Multiple Access with Collision Detection(CSMA/CD)Access Method and Physical Layer Specifications Amendment: Data Terminal Equipment ( DTE Power via Media Dependent Interface(MDI) Sponsor LAN/MAN Standards Committee of the IEEE Computer Society Approved 12 June 2003 IEEE-SA Standards Board Abstract: Support for optionally powering a 10BASE-T, 100BASE-TX or 1000BASE-T DTE device via the power Interface(Pl) using physical layers defined in Clauses 14, 25, and 40. The Power Sourcing Equipment(PSE)is located at an endpoint or midspan, separate from and between the MDIs, and provides power to the Powered Device(PD)over the Link Section. The Pse detection protocol distinguishes a compatible PD from non-compatible devices and precludes the application of power and possible damage to non-compatible devices. The PsE monitors the maintain Power Signature(MPS)and removes power when it is no longer requested or required. Optional manage ment function requirements are specified Keywords: 802.3at, Link Section, midspan, MPS, PD, PI, POE, power, Power over Ethernet, PSE The Institute of Electrical and Electronics Engineers, Inc Copyright o 2003 by the Institute of Electrical and Electronics Engineers, Inc a rights reserved. Published 18 June 2003. Printed in the United States of America IEEE and 802 are registered trademarks in the U.S. Patent TrademarkOffice, owned by the Institute of Electrical and Electronics Engineers, Incorporated Print:|SBN07381-3696-4SH95132 PDF:|SBNO-7381-3697-2SS95132 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. IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of the IEEE Standards Association (IEEE-SA) Standards board. The IeeE develops its standards through a consensus develop ment process, approved by the American National Standards Institute, which brings together volunteers representing varied iewpoints and interests lo achieve the final product. Volunteers are not necessarily members of the Institule and serve with out compensation. While the ieee administers the process and establishes rules to promote fairness in the consensus devel- opment process, the ieee does not independently evaluate, test, or verify the accuracy of any of the information contained in its standards Use of an IEEE Standard is wholly voluntary. The ieee disclaims liability for any personal injury, property or other damage of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance upon this, or any other IEEE Standard document The ieee does not warrant or represent the accuracy or content of the material contained herein, and expressly disclaims any express or implied warranty, including any implied warranty of merchantability or fitness for a specific purpose, or that the use of the material contained herein is free from patent infringement. IEEE Standards documents are supplied"AS IS 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 IEE 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. Every IEEE Standard is subjected to review at least every five years for revi sion or reaffirmation. when a document is more than five years old and has not been reaffirmed, it is reasonable to conclude that its contents, although still of some value, do not wholly reflect the present state of the art. Users are cautioned to check to determine that they have the latest edition of any IEEE Standard In publishing and making this document available, the ieEE is not suggesting or rendering professional or other services for or on hehalf ot, any person or entity. Nor is the IEFF undertaking to perform any duty owed by any other person or entity to another. Any person utilizing this, and any other IEEE Standards document, should rely upon the advice of a competent pro fessional in determining the exercise of reasonable care in any given circumstances Interpretations: Occasionally questions may arise regarding the meaning of portions of standards as they relate to specific applications. When the need for interpretations is brought to the attention of IEEE, the Institute will initiate action to prepare appropriate responses. Since IEEE Standards represent a consensus of concerned interests, it is important to ensure that any nterpretation has also received the concurrence of a balance of interests. For this reason IEEE and the members of its soci- eties and Standards Coordinating Committees are not able to provide an instant response to interpretation requests except in those cases where the matter has previously received formal consideration Comments for revision of IEEE Standards are welcome from any interested party, regardless of membership affiliation with IEEE. Suggestions for changes in documents should be in the form of a proposed change of text, together with appropriate supporting comments Comments on standards and requests for interpretations should be addressed to Secretary, IEEE-SA Standards board 445 Hoes lar PO. BOX 1331 Piscataway, NJ08855-1331 USA Note: Attention is called to the possibility that implementation of this standard may require use of subject mat ter 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 an Ieee standard or for conducting inquiries into the legal validity or cope of those patents that are brought to its attention Authorization to photocopy portions of any individual standard for internal or personal use is granted by the Institute of elec- trical and Electronics Engineers, Inc provided that the appropriate fee is paid to Copyright Clearance Center. To arrange for payment of licensing fee, please contact Copyright Clearance Center, Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA; +1978 750 8400 Permission Lo photocopy portions of any individual standard for educational classroon use can also be obtained through the Copyright Clearance Center Introduction to EEE Std 802. 3af-2003 IThis introuduction is not part of IEEE Std 802.3af-2003, IEEE Standard for Information technology Telecommunications and information exchange between systems-Local and metropolitan area net Specific requirements CSMA/CD Access Method and Physical Layer Specifications Amend- ment: Data Terminal Equipment (DTE) Power via Media Dependent Interface (MDDI This amendment 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 POu工O≥山u DATA 802.1 BRIDGING LINK LAYER 302.3 802.5 802.11 80215 802.16 MEDIUM MEDIUM MEDIUM MEDIUM MEDIUM ACCESS ACCESS ACCESS ACCESS ACCESS 802.3 802.5 802.11 802.15 PHYSICAL PHYSICAI 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 Organization for Standardization (ISO)Open Systems Interconnection (OSI) Basic Reference Model (ISO/EC 7498-1: 1994). The access standards define types of medium access technologies and associated physical media, each appropriate for particular applications or system objectives. Some access standards have been withdrawn and other types are under investigation The standards defining the technologies noted above are as follows: IEEE Std 8022 Overview and Architecture. This standard provides an overview to the family of IEEE 802 Standards IEEE Std 802.1B LANIMAN Management Defines an OSI management-compatible and 802.lk architecture, and services and protocol elements for use in a LAN/MAN LISO TEC 15802-2 environment for performing remote management IEEE Std 802.ID Media Access Control(MAC) Bridges. Specifies an architecture and protocol for the interconnection of IEEE 802 LANS below the MAC service boundary IEEE Std 8021ETN System Loud Protocol Specifies a set of services and protocol for those aspects [ISO/IEC15802-4] of management concerned with the loading of systems on IEEE 802 LANS I The IeEe standards referred to in the above figure and list are trademarks owned by the Institute of Electrical and Electronics Enginccrs, Incorporated PThe IEEE 802 Overview and Architecture Specification, originally known as IEEE SLd 802. 1A, has been renumbered as IEEE SL802 This has been done to accomodate recognition of the base standard in a family of standards. References to IeEe Std 802. 1A should b considered as references to ieee std 802 Copyright C 2003 IEEE. All rights reserved IEEE Std 802.IF Common Definitions and Procedures for IEEE 802 Management Information IEEE Std 802.IG Remote Media Access Control(MAC) Bridging Specifies extensions for the SO/EC15802-5」 interconnection, using non-LAN communication technologies, of geographically separated IEEE 802 LANS below the level of the logical link control protocol EEE Std 802.1h Media Access Control (MAC) Bridging of Ethernet V2.0 in Local area IISO/IEC TR 11802-5 Networks · TEEE Std802.2 Logical link control IISO/IEC 8802-2] IEEE Std 802 3 CSMA/CD Access Method and Physical layer specifications · IEEE Std8025 Token Ring Access Method and Physical Layer specifications IISO/IEC 8802-5] · IEEE Std802.10 Interoperable LAN! MAN Security IEEE Std 802.11 Wireless lan Medium Access Control (Mac) and Physical layer [ISO/IEC DIS 8802-11] Specifications IEEE Std 802.15 Wireless medium Access Control(Mac) and Physical layer (PHr) Specifications for: Wireless Personal Area Networks · IEEE Std802.16 Standard Air Interface for Fixed Broadband Wireless Access systems In addition to the family of standards, the following is a recommended practice for a common Physical Layer technology IEEE Std 802.7 TEEE Recommended Practice for Broadband Local Area Networks Conformance test methodology An additional standard, IEEE Std 1802.3 provides conformance test information for 10BASE-T IEEE Std 802. 3af-2003 This standard contains state-of-the-art material. The area covered by this standard is undergoing evolution Revisions are anticipated to this standard within the next few years to clarify existing material, to correct possible errors, and to incorporate new related material Copyright o 2003 IEEE. All rights reserved Participants The following is a list of chairs and editors at the time the ieee 802.3 Working Group balloted this standard Geoffrey O. Thompson, Chair-Phase 1 Robert m. grow. Chair-Phase 2 David J. Law, Vice Chair Robert m. grow, Secretary-Phase I Steven B Carlson. Secretary-Phase 2 Steven B. Carlson, Chair, 802.3af Task Force Michael S McCormack, Editor-Phase 1, 8023af Task Force John J Jetzt, Editor-Phase 2, 8023af Task Force Chad M.ones, Comment Editor, 8023af Task force The following is a list of voters at the time the ieee 802.3 Working Group balloted this standard Martin adams Doug coleman Denton gentry David e. Kohl Regis colla John george Paul Kolesar Don alderrou Herb congdon Ali ghiasi Glen Kramer Thomas alexander Edward cornejo Pat Gilliland Gerard Kuvt Khaled Amer Richard Cross Moty goldis Hans lackner Keith amundsen Brian Cruikshank Matthew goldman Lawrence. lamers Tony Anderson Chris cullin Timothy D. Goodman William lane Ralph ando David cunningham Rich graham Daun langston Jack andr John ambrosia Eric B. grann Ryan Latchman Mehran ataee Robert. Dahlgren C. Thomas Gray Quang le Phil Auld Kevin daines Jonathan E. greenlaw Eugene lee Gcrard E. Bachand John dallesassc Ajay Gummalla Wesley lcc Andy baldan Rupert sDance Michael hackert Amir lehr Hugh barrass Yair darshan Stephen Haddock Lisa leo Bob barrett Peter Dartnell Sharam hakim Robert h. leonovich Howard baumer Piers dawe Farid hamid Avinoam levy Denis beaudoin Michael de bie Johannes hansen Tom lindsay Michael beck Tom debiec Del hanson Fengkun liu Mike bennett Joel dedrick Marwan lassoun FredA. lucas Idney Berglund Chris Di minico Tom Hatley Meilissar. lum Johnl. bestel Wael Diab Adam Healey jeffrey lynch Vipul bhatt Thomas dineen Ronen heldman EricR. Lynskey Jeff e. bisbcrg Hamish dobson Itzik hendel Henning lysdal Michel bohbot David w. dolfi Ken merrit Brian macleod Brad booth Dan dove James h. hesson Ariel maislos Paul bottorff Daniel S.Draper Henry hinrichs David w. martin Gary bourque Brian drever David binzel Koichiro mashiko Kirk bovill Mike dudek yan Hirth R Thomas Mathey Richard brand Richard Dugan Jay hoge Ziad albert mani Andrew Brierley-Green David dwelley David w. Flyer hideyuki matsuo Rhett brikoyskis Clay Eddings Haruhiko ichino Bob Mayer Rick brooks frank effen berger Osamu ishida Kent mccammon Benjamin Brown John egan Steve jackson Philip L. McCarron Kevin brown Gcorgc eisler MichacI R Jacobson Jo Beth metzger Steve f. Buck Martin Elhgj Brent jaff Richard Michalowski Lisa buckman John f. ewen Eric jang Jacob(Kobi) mizrahi James burgess Jean-Loup Ferrant Woo-Hyuk Jang Fred mohamadi Scott burton Jens fiedler Jack l jewell Dirk s. mohl Robert busse Norval Figueira Wenbin Jiang Cindy montstream Roy Bynum Robert g. finch Clarence Joh Paul B. moore Donald caldwell Farzin firoozmand David Kabal Robert moore Richard Cam Alan flatman Shinkyo Kaku Shohei moriwaki Justin chang Roger fraser Mohan Kalkunte Robert muir Xiaopeng Chen Howard frazier Puru Kamat Shimon muller Zinan chen Ladd freitag Roger Karam Denis Murphy Hon wah ch Krister Frojdh Dave Kaufman Thomas murphy Kuen chow Yukihiro Fujimoto N. Patrick Kelly Brian murray George Classman Darrell Furlong John J. Kenny Gerard Nadeau Terry Cobb Justin gaither Dawson teslin Ken naganuma Copyright C 2003 IEEE. All rights reserved Hari naidu John quirk Robbie shergill Peter van lannen Karl nakamura Rick rabinovich Jian s Erik van oosten Nersi nazari Jurgen rahn Patrick H. Stanley Vinod Kumar venkatavaraton Kristian nelson Naresh raman Nick Stapleton Ramakrishna Vepa Paul nikolich Jennifer g. rasimas Claus stetter Gerard Vergnaud Michael nootbaar Dan rausch Donald s. stewart DavidⅤ Bob Noseworthy Peter rautenberg Dean m. stoddart Martin wagner Satoshi obara Maurice reintjes Mario stoltz Tim Warland Stephen oh Lawrence rennie Hiroshi suzuki Jeff warren Peter ohlen Ramez rizk Daniel svensson Ted washburn Toshio ooka Shawn Rogers Steve swanson Fred Weniger Philip orlik Dan romascanu Tad Szostak Tony Whitlow George Oughton Tume romer Rich Taboret Bill wiedemann Robert r. pace Floyd ross Bharat tailor John wolcott Don pannell Larry rubin Akio tajima King won Elwood T. Parsons Hyunsurk ryu Mike Tate Shin-Hee won Dipak m. patel Dolors sala Pat thaler David wong Alex Pavlovsky Anthony sanders R.Jonathan thatcher Edward Wong John payne Mark Sankey Walter thirion Leo wong Petar Pepeljugoski Akira sasaki Bruce Tolley Percy Wong Gerry Pesavento Raj savara Paul Torgerson Stefan m. wurster Armin pitzer Klaus schulz Rick townsend Doug Yoder Timothy R. Plunkett Peter schwartz Edward Turner Jason Yorks Jeff porter Khorvash sefidvash Bulent Tusiray Leonard young William Quackenbush Steve selee Bor- long twu Hank zannini Jim quilici Koichiro seto Sterling a. vaden Bob zona Patrick W. quinn Vadim shain Schelto van doorn Copyright o 2003 IEEE. All rights reserved The following members of the balloting committee voted on this revision of the standard. Balloters may have voted for approval, disapproval, or abstention Ilian atias Marian hargis George Miao Jacob ben ar Steven m. hemmah Joseph moran Benjamin brown Peeya Iwagoshi Robert muir Scott burton Raj jain Ken naganuma Jeff Cain Johnj jetzt Paul nikolich Steven b. carlson Chad Jones Bob ohara Yawgeng Chau Roger A kara Satoshi obara Keith chow E. S. Kramer Donald. pannell Chris Cullin William Lane Subbu ponnuswamy Guru dutt dhingra David j. law Vikram Punj Yair darshan Pi-Cheng law Maurice Reintjes le Amir lehr Thomas ruf Christopher T. diminico Daniel levesque Frederick schindler Thomas dineen Vincent lipsio Charles Spurgeon Dr Souray dutta leff l inch Clay stocklin David mclean dwells Jose morales Steven swanson Mordechai goldis Ahmad mahinfallah Pat Thaler Rich graham Kyle maus Geoffrey O. Thompson Robert m. grow Patrick Mc Caughey Jerry Thrasher Stephen Haddock Michael McCormack Sterling vaden Khosrow paratian Steve methley Oren Yuen When the IEEE-Sa Standards Board approved this standard on 12 June 2003, it had the following membershi Don wright, Chair Howard m. frazier. vice chair Judith Gorman, Secretary H. Stephen Berger Donald m. herman Daleep C Mohla Joe bruder Laura hitchcock William 3. Moylan Bob davis Richard h. hulett Paul nikolich Richard de blasio Anant jain Gary Robinson Julian forsteri Lowell g. johnson Malcolm v. thaden Toshio Fukuda Joseph L. Koepfinger Geoffrey o. Thompson Arnold M. greenspan Tom Mc gean Doug Topping Raymond Hapeman Steve mills Howard L. wolfman *Member emeritus Also included are the following nonvoting Ieee-sa standards board liaisons Alan Cookson. NisT Representative Satish K. Aggarwal, NRC Representative Catherine berger IEEE Standards Project editor Copyright C 2003 IEEE. All rights reserved Contents REVISIONS TO IEEE Std 802. 3-2002 (Changes to)Introduction 2 1. 4(Cha o) Definitions 1.5(Changes to) Abbreviations.... 14.( Changes to) Twisted-pair medium attachment unit ( MAU) and baseband medium type10BASE-T… 22.(Changes to) Reconciliation Sublayer(RS)and Media Independent Interface(MID) 30.( Changes to)10 Mb/S, 100 Mb/s, 1000 Mb/s, and 10 Gb/s Management.........6 30.1( Changes to) Overview……………… …………6 30.9 Management for Power Sourcing equipment (pse 30.10 Layer management for Midspan ······:······· 14 40.( Changes to) Physical Coding Sublayer(PCs), Physical Medium Attachment (PMA) sublayer and baseband medium, type 1000BASE-T......... ““·“· 17 ANNEXES Changes to) Annex 30A (normative) GDMO specification for Ieee 802.3 managed object classes........18 Changes to) Annex 30B(normative) GDMO and ASN. I definitions for management..... 26 NEW MATERIAL TO IEEE Std 802. 3-2002 33. Data Terminal Equipment DTE) Power via Media Dependent Interface(MDI27 33.1 Ove 33.2 Power sourcing equipment 33. 3 Powered devices 49 33.4 Additional Electrical specifications 33.5 Environmental 6 33.6 Management function requirements 67 33.7 Protocol Implementation Conformance Statement(PICS)proforma for Clause 33 DTE Power via MDⅠ .71 Annex 33A (informative) PSE Detection of PDs 86 Annex 33B (informative) Cabling guideli Annex 33C (informative)Recommended test configurations and procedures 33C. 1 Recommended PsE output test procedures 91 VI opyright o 2003 IEEE. All rights reserved

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