智能平台管理接口（IPMI）

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- IPMI -

Intelligent Platform Management

Interface Specification

Second Generation

v2.0

Document Revision 1.0

February 12, 2004

Intel Hewlett-Packard NEC Dell

Intelligent Platform Management Interface Specification

Revision History

Date Ver Rev Modifications

9/16/98 1.0 1.0 IPMI v1.0 Initial release

8/26/99 1.0 1.1 Errata Revision. Incorporated errata from revision 1 or the Errata and

Clarifications for the IPMI v1.0 specification.

2/21/01 1.5 1.0 IPMI v1.5 Initial release

2/20/02 1.5 1.1 Updated to include addenda and errata

9/12/03 1.5 1.1 Markup to include 9/12/03 addenda and errata

9/26/03 1.5 1.1 Markup updated to include missing optional 5th byte on Get Chassis Status

command, per errata E317

1/27/04 1.5 1.1 Markup updated per errata document version 5

See v1.5

spec

1.5 1.2 IPMI 1.5 updated per errata document version 5

2/12/04 2.0 1.0 IPMI Second Generation document. Initial release.

INTELLECTUAL PROPERTY DISCLAIMER

THIS SPECIFICATION IS PROVIDED “AS IS” WITH NO WARRANTIES WHATSOEVER INCLUDING ANY

WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY

OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR SAMPLE.

NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY

RIGHTS IS GRANTED OR INTENDED HEREBY.

INTEL, HEWLETT-PACKARD, NEC, AND DELL DISCLAIM ALL LIABILITY, INCLUDING LIABILITY FOR

INFRINGEMENT OF PROPRIETARY RIGHTS, RELATING TO IMPLEMENTATION OF INFORMATION IN THIS

SPECIFICATION. INTEL, HEWLETT-PACKARD, NEC, AND DELL, DO NOT WARRANT OR REPRESENT THAT

SUCH IMPLEMENTATION(S) WILL NOT INFRINGE SUCH RIGHTS.

C is a trademark of Philips Semiconductors. All other product names are trademarks, registered trademarks, or servicemarks of

their respective owners.

C is a two-wire communications bus/protocol developed by Philips. IPMB is a subset of the IP

C bus/protocol and was

developed by Intel. Implementations of the I

C bus/protocol or the IPMB bus/protocol may require licenses from various

entities, including Philips Electronics N.V. and North American Philips Corporation.

Intel, Hewlett-Packard, NEC, and Dell retain the right to make changes to this document at any time, without notice. Intel,

Hewlett-Packard, NEC, and Dell make no warranty for the use of this document and assume no responsibility for any error

which may appear in the document nor does it make a commitment to update the information contained herein.

Intelligent Platform Management Interface Specification

iii

IPMI NON-DISCLOSURE AGREEMENT

DO NOT download these files (collectively, the “Confidential Information”) until you have carefully read the

following terms and conditions. By downloading the Confidential Information you agree to the terms of this

Agreement. If you do not wish to so agree, do not download the Confidential Information.

UConfidential InformationU. The confidential, proprietary and trade secret information being disclosed ("Confidential

Information"), is that information marked with a "confidential", "proprietary", or similar legend, and is described as:

Confidential Information:

UIntelligent Platform Management Interface Specification Second Generation (v2.0),

Intelligent Platform Management Bus Bridge Specification (v1.0), Intelligent Chassis Management Bus Bridge

Specification (v1.0)

CONFIDENTIAL INFORMATION IS PROVIDED SOLELY FOR YOUR INTERNAL EVALUATION AND

REVIEW TO DETERMINE WHETHER TO ADOPT THE SPECIFICATIONS BY SIGNING A SEPARATE

ADOPTER’S AGREEMENT. THE RECEIVING PARTY IS NOT LICENSED TO IMPLEMENT THE

SPECIFICATIONS UNLESS OR UNTIL AN ADOPTER’S AGREEMENT IS EXECUTED.

Disclosing party’s representatives for disclosing Confidential Information is: Fadi Zuhayri (fadi.zuhayri@intel.com)

UObligations of Receiving PartyU. The receiving party will maintain the confidentiality of the Confidential Information of

the disclosing party with at least the same degree of care that it uses to protect its own confidential and proprietary

information, but no less than a reasonable degree of care under the circumstances. The receiving party will not

disclose any of the disclosing party’s Confidential Information to employees or to any third parties except to the

receiving party’s employees, parent company and

U majority-owned subsidiariesU who have a need to know and who

agree to abide by nondisclosure terms at least as comprehensive as those set forth herein; provided that the receiving

party will be liable for breach by any such entity. The receiving party will not make any copies of Confidential

Information received from the disclosing party except as necessary for its employees, parent company and majority-

owned subsidiaries with a need to know. Any copies which are made will be identified as belonging to the disclosing

party and marked "confidential", "proprietary" or with a similar legend.

UPeriod of Non-AssertionU. Unless a shorter period is indicated below, the disclosing party will not assert any claims for

breach of this Agreement or misappropriation of trade secrets against the receiving party arising out of the receiving

party’s disclosure of disclosing party’s Confidential Information made more than five (5) years from the date of receipt

of the Confidential Information by the receiving party. However, unless at least one of the exceptions set forth in

Section 4 below has occurred, the receiving party will continue to treat such Confidential Information as the

confidential information of the disclosing party and only disclose any such Confidential Information to third parties

under the terms of a non-disclosure agreement.

UTermination of Obligation of ConfidentialityU. The receiving party will not be liable for the disclosure of any Confidential

Information which is: (a) rightfully in the public domain other than by a breach of this Agreement of a duty to the

disclosing party; (b) rightfully received from a third party without any obligation of confidentiality; (c) rightfully known to

the receiving party without any limitation on use or disclosure prior to its receipt from the disclosing party;

(d) independently developed by employees of the receiving party; or (e) generally made available to third parties by

the disclosing party without restriction on disclosure.

UTitleU. Title or the right to possess Confidential Information as between the parties will remain in the disclosing party.

6. UNo Obligation of Disclosure; Termination UThe disclosing party may terminate this Agreement at any time without

cause upon written notice to the other party; provided that the receiving party’s obligations with respect to information

disclosed during the term of this Agreement will survive any such termination. The disclosing party may, at any time:

(a) cease giving Confidential Information to the other party without any liability, and/or (b) request in writing the return

or destruction of all or part of its Confidential Information previously disclosed, and all copies thereof, and the

receiving party will promptly comply with such request, and certify in writing its compliance.

UGeneralU.

(a) This Agreement is neither intended to nor will it be construed as creating a joint venture, partnership or other form

of business association between the parties, nor an obligation to buy or sell products using or incorporating the

Confidential Information.

(b) No license under any patent, copyright, trade secret or other intellectual property right is granted to or conferred

upon either party in this Agreement or by the transfer of any information by one party to the other party as

contemplated hereunder, either expressly, by implication, inducement, estoppel or otherwise, and that any

license under any such intellectual property rights must be express and in writing.

(c) The failure of either party to enforce any right resulting from breach of any provision of this Agreement will not be

deemed a waiver of any right relating to a subsequent breach of such provision or of any other right hereunder.

(d) This Agreement will be governed by the laws of the State of Delaware without reference to conflict of laws

principles.

(e) This Agreement constitutes the entire agreement between the parties with respect to the disclosure(s) of

Confidential Information described herein, and may not be amended except in a writing signed by a duly authorized

representative of the respective parties. Any other agreements between the parties, including non-disclosure

agreements, will not be affected by this Agreement.

Intelligent Platform Management Interface Specification

Table of Contents

TU1.UT TUIntroductionUT .......................................................................................................................................... 1

TU1.1UT TUAudienceUT .........................................................................................................................................................1

TU1.2UT TUReference DocumentsUT .....................................................................................................................................1

TU1.3UT TUConventions and TerminologyUT ........................................................................................................................5

TU1.4UT TUBackground - Architectural GoalsUT...................................................................................................................6

TU1.5UT TUNew for IPMI v1.5UT ..........................................................................................................................................7

TU1.6UT TUNew for IPMI v2.0UT ..........................................................................................................................................9

TU1.7UT TUIPMI OverviewUT..............................................................................................................................................11

TU1.7.1UT TUIntelligent Platform ManagementUT...........................................................................................................11

TU1.7.2UT TUIPMI Relationship to other Management StandardsUT ..............................................................................11

TU1.7.3UT TUManagement Controllers and the IPMBUT.................................................................................................12

TU1.7.4UT TUIPMI MessagingUT .....................................................................................................................................13

TU1.7.5UT TUSensor ModelUT .........................................................................................................................................13

TU1.7.6UT TUSystem Event Log and Event MessagesUT .................................................................................................13

TU1.7.7UT TUSensor Data Records & Capabilities CommandsUT ...................................................................................14

TU1.7.8UT TUInitialization AgentUT ................................................................................................................................15

TU1.7.9UT TUSensor Data Record RepositoryUT .............................................................................................................15

TU1.7.10UT TUPrivate Management BussesUT ..................................................................................................................15

TU1.7.11UT TUFRU InformationUT ....................................................................................................................................15

TU1.7.12UT TUFRU DevicesUT ..........................................................................................................................................16

TU1.7.13UT TUEntity Association RecordsUT ....................................................................................................................16

TU1.7.14UT TULinkage between Events and FRU InformationUT .....................................................................................16

TU1.7.15UT TUDifferentiation and Feature ExtensibilityUT ...............................................................................................16

TU1.7.16UT TUSystem InterfacesUT ...................................................................................................................................17

TU1.7.17UT TUOther Messaging InterfacesUT...................................................................................................................17

TU1.7.18UT TUSerial/Modem InterfaceUT ..........................................................................................................................17

TU1.7.19UT TULAN InterfaceUT ........................................................................................................................................18

TU1.7.19.1UT TUPayloadsUT ............................................................................................................................................18

TU1.7.20UT TUSerial Over LAN (SOL)UT .........................................................................................................................18

TU1.7.21UT TUIPMI and ASFUT ........................................................................................................................................19

TU1.7.22UT TULAN AlertingUT .........................................................................................................................................19

TU1.7.23UT TUSerial/Modem Alerting and PagingUT ........................................................................................................19

TU1.7.24UT TUPlatform Event Filtering (PEF)UT ..............................................................................................................20

TU1.7.25UT TUCall Down Lists and Alert PoliciesUT ........................................................................................................20

TU1.7.26UT TUChannel Model, Authentication, Sessions, and UsersUT ............................................................................20

TU1.7.27UT TUStandardized Watchdog TimerUT ...............................................................................................................21

TU1.7.28UT TUStandardized POH CounterUT ....................................................................................................................21

TU1.7.29UT TUFirmware FirewallUT ..................................................................................................................................21

TU1.7.30UT TUCommand and Function DiscoveryUT ........................................................................................................21

TU1.7.31UT TUIPMI Hardware ComponentsUT .................................................................................................................22

TU1.7.32UT TUConfiguration InterfacesUT ........................................................................................................................22

TU1.8UT TUIPMI and BIOSUT .............................................................................................................................................22

TU1.9UT TUSystem Management Software (SMS)UT ..........................................................................................................23

TU1.10UT TUSMI HandlerUT ..................................................................................................................................................23

TU1.11UT TUOverview of Changes from IPMI v1.0UT ..........................................................................................................25

TU2.UT TULogical Management Device TypesUT ................................................................................................. 26

TU3.UT TUBaseboard Management Controller (BMC)UT ..................................................................................... 29

TU3.1UT TURequired BMC FunctionsUT..............................................................................................................................32

TU4.UT TUGeneral Mgmt. Controller Required FunctionsUT............................................................................... 35

TU5.UT TUMessage Interface DescriptionUT ......................................................................................................... 37

Intelligent Platform Management Interface Specification

TU5.1UT TUNetwork Function CodesUT...............................................................................................................................37

TU5.2UT TUCompletion CodesUT .........................................................................................................................................39

TU5.3UT TUCompletion Code RequirementsUT ...................................................................................................................41

TU5.3.1UT TUResponse Field Truncation on non-zero Generic Completion CodesUT ....................................................41

TU5.3.2UT TUSummary of Completion Code UseUT .......................................................................................................41

TU5.4UT TUSensor Owner IdentificationUT..........................................................................................................................42

TU5.5UT TUSoftware IDs (SWIDs)UT ..................................................................................................................................42

TU5.6UT TUIsolation from Message ContentUT....................................................................................................................43

TU6.UT TUIPMI Messaging InterfacesUT ................................................................................................................ 44

TU6.1UT TUTerminologyUT ..................................................................................................................................................44

TU6.2UT TUChannel ModelUT ..............................................................................................................................................44

TU6.3UT TUChannel NumbersUT ..........................................................................................................................................45

TU6.4UT TUChannel Protocol TypeUT ..................................................................................................................................45

TU6.5UT TUChannel Medium TypeUT ..................................................................................................................................46

TU6.6UT TUChannel Access ModesUT .................................................................................................................................47

TU6.7UT TULogical ChannelsUT ...........................................................................................................................................48

TU6.8UT TUChannel Privilege LevelsUT ..............................................................................................................................48

TU6.9UT TUUsers & Password SupportUT............................................................................................................................49

TU6.9.1UT TU‘Anonymous Login’ ConventionUT ...........................................................................................................49

TU6.9.2UT TUAnonymous Login StatusUT .......................................................................................................................49

TU6.10UT TUSystem Interface MessagingUT ..........................................................................................................................50

TU6.10.1UT TUBMC Channels and Receive Message QueueUT ........................................................................................50

TU6.10.2UT TUEvent Message BufferUT ............................................................................................................................50

TU6.11UT TUSystem Interface Discovery and Multiple InterfacesUT ....................................................................................51

TU6.12UT TUIPMI SessionsUT................................................................................................................................................52

TU6.12.1UT TUSession-less ConnectionsUT .......................................................................................................................52

TU6.12.2UT TUSingle-session ConnectionsUT ....................................................................................................................52

TU6.12.3UT TUMulti-session ConnectionsUT .....................................................................................................................52

TU6.12.4UT TUPer-Message and User Level Authentication DisablesUT ..........................................................................53

TU6.12.5UT TULink AuthenticationUT ...............................................................................................................................53

TU6.12.6UT TUSummary of Connection CharacteristicsUT ................................................................................................54

TU6.12.7UT TUSession Activation and IPMI Challenge-ResponseUT ................................................................................55

TU6.12.8UT TUSession Sequence NumbersUT....................................................................................................................56

TU6.12.9UT TUSession Sequence Number GenerationUT ..................................................................................................56

TU6.12.10UT TUInbound Session Sequence Number Tracking and HandlingUT .................................................................56

TU6.12.11UT TUOut-of-order Packet HandlingUT ................................................................................................................57

TU6.12.12UT TUOutbound Session Sequence Number Tracking and HandlingUT ..............................................................57

TU6.12.13UT TUSession Inactivity TimeoutsUT ...................................................................................................................57

TU6.12.13.1UT TUAvoiding ‘Slot Stealing’UT ..............................................................................................................58

TU6.12.14UT TUAdditional Session Specifications and CharacteristicsUT ..........................................................................58

TU6.13UT TUBMC Message BridgingUT ................................................................................................................................59

TU6.13.1UT TUBMC LUN 10b RoutingUT .........................................................................................................................60

TU6.13.2UT TUSend Message Command From System InterfaceUT ..................................................................................60

TU6.13.3UT TUSend Message Command with Response TrackingUT ...............................................................................61

TU6.13.4UT TUBridged Request ExampleUT ......................................................................................................................62

TU6.14UT TUMessage Size & Private Bus Transaction Size RequirementsUT .......................................................................64

TU7.UT TUIPMB InterfaceUT .................................................................................................................................... 67

TU7.1UT TUIPMB Access via Master Write-Read commandUT...........................................................................................67

TU7.2UT TUBMC IPMB LUNsUT ........................................................................................................................................67

TU7.3UT TUSending Messages to IPMB from System SoftwareUT......................................................................................67

TU7.4UT TUSending IPMB Messages to System SoftwareUT ..............................................................................................68

TU7.5UT TUTesting for Event Message Buffer SupportUT ...................................................................................................69

TU8.UT TUICMB InterfaceUT .................................................................................................................................... 71

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