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| The IPMI Initiative derives its name from the main specification (IPMI) which defines the messages and system interface to platform management hardware. It comprises three specifications: |
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 | Intelligent Platform Management Interface |
| Intelligent Platform Management Bus (IPMB) |
| Intelligent Chassis Management Bus (ICMB) |
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| The IPMB specification defines an internal management bus for extending platform management within a chassis, while the ICMB specification defines the external management bus between IPMI enabled systems. |
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| Note: Before implementing the IPMI specifications, see the Adopters Agreement. |
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IPMI v2.0 Addenda, Errata, and Clarifications Revision 3 [PDF 490 KB]
Published: February 15, 2006
This latest revision lists the cumulative addenda, errata, and clarifications against the rev. 1.0 release of the IPMI Second Generation v2.0 specification. Several important additions, corrections and clarifications have been made to the specification, including updates to expand the number of available channels, new commands to enable 'software settable' sensors, and a UTC offset option for IPMI timestamps. A corresponding markup of the v2.0 specification is also available.
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IPMI v2.0 rev. 1.0 specification markup for IPMI v2.0/v1.5 errata revision 3 [PDF 2.4 MB]
Published: February 15, 2006
This is a version of the IPMI Second Generation v2.0 rev. 1.0 specifications with revisions marked cumulatively per revision 1, 2, and 3 of the IPMI v2.0/v1.5 errata document.
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Addenda, Errata, and Clarifications document revision 2 for IPMI v2.0 rev. 1.0 and v1.5 rev. 1.1 specifications [PDF 304 KB]
Published: May 5, 2005
This latest revision lists the cumulative addenda, errata, and clarifications against the rev. 1.0 release of the IPMI Second Generation v2.0 specification. Several important additions and clarifications have been made to the specification, including areas such as RMCP+, Firmware Firewall. The update also includes new optional commands that enhance the support of using IPMI BMCs with add-in 'adjunct' management controllers.
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IPMI v2.0 rev. 1.0 specification markup for IPMI v2.0/v1.5 errata revision 2 [PDF 2.4 MB]
Published: May 5, 2005
This is a version of the IPMI Second Generation v2.0 rev. 1.0 specifications with revisions marked per revision 1 and 2 of the IPMI v2.0/v1.5 errata document.
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Addenda, Errata, and Clarifications document revision 1 for IPMI v2.0 rev. 1.0 and v1.5 rev. 1.1 specifications [PDF 201 KB]
Published: June 1, 2004
This revision lists the cumulative addenda, errata, and clarifications against the rev. 1.0 release of the IPMI Second Generation v2.0 specification, and additional errata against the rev. 1.1 release of the IPMI v1.5 specification. For IPMI v1.5, the errata document is not cumulative, but picks up where the IPMI v1.5 Addenda, Errata, and Clarifications document revision 5 left off.
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IPMI v2.0 rev. 1.0 specification markup for IPMI v2.0/v1.5 errata revision 1 [PDF 2.3 MB]
Published: June 1, 2004
This is a version of the IPMI Second Generation v2.0 rev. 1.0 specifications with revisions marked per revision 1 of the IPMI v2.0/v1.5 errata document.
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IPMI v2.0 specifications Document Revision 1.0 [PDF 2.4 MB]
Published: Feb 12, 2004
This document is the latest version of the Intelligent Platform Management Interface specifications. IPMI v2.0 includes new features such as "Serial Over LAN" (SOL) for redirecting a baseboard serial port over an IPMI LAN session extended and "RMCP+" (Remote Management Control Protocol+) that provides enhanced authentication and confidentiality (encryption) capabilities for IPMI LAN sessions. New infrastructure capabilities deliver new standard and OEM payloads over an IPMI session and a new "Firmware Firewall" capability simplifies command discovery and enables restricting management feature access across different IPMI interfaces to enhance security. Additionally, the SSIF (SMBus System Interface) supports inexpensive, low pin-count management controllers, extended sensor and entity types, and sensor data record capabilities. To help simplify migrating to the new IPMI v2.0 capabilities, the main additions and changes from the IPMI v1.5 specifications are highlighted in this version with blue text. Note that using the IPMI Second Generation v2.0 Specification requires signing a new Adopters agreement. |
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IPMI v1.5 rev. 1.1 specification markup for IPMI v2.0/v1.5 errata revision 1 [1.9 MB] Published: June 1, 2004
This version of the IPMI v1.5 rev. 1.1 specifications contains revisions marked per the Addenda, Errata, and Clarifications document (revision 5) along with additional errata from revision 1 of the IPMI v2.0/v1.5 errata document. | |
Addenda, Errata, and Clarifications document revision 5 for IPMI v1.5 rev. 1.1 specification [PDF 310 KB] Published: Jan 29, 2004
This revision lists the cumulative addenda, errata, and clarifications against the rev. 1.1 release of the IPMI v1.5 specification.
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IPMI v1.5 rev. 1.1 specification markup for errata revision 5 [PDF 2.7 MB] Published: Jan 19, 2004
This is a version of the IPMI v1.5 rev. 1.1 specifications with revisions marked per the Addenda, Errata, and Clarifications document revision 5. | |
IPMI Specification v1.5 Document Revision 1.1
Published: Feb 20, 2002
IPMI v1.5 adds remote management access over Serial/Modem and LAN connections, and new capabilities for automatic alerting and recovery. IPMI v1.5 is a superset of and backward compatible with earlier IPMI v1.0 specification. It also includes extensions to support other existing and emergent standards. See IPMI 1.5 white paper overview for brief outline of the features and changes in IPMI v1.5. The document revision 1.1 update of the IPMI v1.5 specification incorporates important errata and addenda that address issues discovered in the original document revision 1.0 release of the specification. A companion addenda and errata document (revision 5) separately lists the errata and addenda that have been included. | |
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IPMI CIM Mapping Guideline 0.60 [PDF 770 KB]
Published: February 6, 2006
This draft document from Intel, Dell*, HP*, and Avocent* describes how DMTF (Distributed Management Task Force, Inc.) CIM platform management objects can be generated and populated using IPMI as the interface to the platform management subsystem. This document is provided to IPMI Adopters, Promoters, and Contributors for review. Please read agreements and information at front of document for information on providing feedback. Version 0.60 provides significant additions over the previous 0.50 posting, including classes and processes for mapping IPMI Entities and FRU information, and additional information on sensor mapping and instantiation. | |
IPMB Specification V1.0 [PDF 218 KB]
Published: November 15, 1999
This specification defines an internal management bus for extending platform management within a chassis. | |
ICMB Specification V1.0 Document Revision 1.3 [PDF 530 kB] Published: April 2, 2003
This document defines an external management bus between IPMI enabled systems. This update adds new commands for supporting Group Chassis Control capabilities. Group Chassis Control provides a mechanism to enable power, reset, and diagnostic interrupt control of multiple chassis using a single broadcast command on the ICMB. | |
Platform Event Trap Specification V1.0, revision 1.00 [PDF 135 kB] Published: December, 7, 1998
This specification defines a common format for SNMP Traps generated by platform management hardware, BIOS, or system boot agents. | |
IPMI Platform Management FRU Information Storage Definition V1.0 Document Revision 1.1 [PDF 190 kB]
Published: September 27, 1999
This document defines and describes the common format and use of the FRU (Field Replaceable Unit) Information storage in platforms using IPMI. | |
IPMB Address Allocation V1.0 [PDF 190 kB]
Published: September 27, 1999
This document presents the allocation and use of I2C slave addresses for devices on the IPMB. | |
| THESE SPECIFICATIONS ARE PROVIDED "AS IS" WITH NO WARRANTIES, and subject to change without notice. |
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Hardware Design 
