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Intelligent Platform Management Interface

Specifications

Specifications

The Intelligent Platform Management Interface Initiative derives its name from the main specification which defines the messages and system interface to platform management hardware. It comprises four main specifications:
  • Intelligent Platform Management Interface (IPMI)
  • Intelligent Platform Management Bus (IPMB)
  • IPMI Platform Management FRU Information Storage Definition
  • Intelligent Chassis Management Bus (ICMB)

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.

Note: Before implementing the IPMI specifications, see the Adopter's Agreement.

Download v2.0 specifications:

Published: October 1, 2013
 
This latest revision of the IPMI v2.0 specification includes all errata, clarifications, and addenda up to and including IPMI v2.0 rev. 1.0 Errata 5. The most significant change to the specification is the addition of support for IPv6 Addressing for IPMI over LAN sessions and LAN Alerting.
 

Published: February 11, 2014

This is a markup showing the revisions added by Errata 6 over the IPMI v2.0 rev. 1.1. Only the Errata 6 changes are shown.

Published: February 11, 2014

This latest revision lists the cumulative addenda, errata, and clarifications against the revision 1.0 release of the IPMI Second Generation v2.0 specification. Errata 6 adds clarifications and corrections for typographic errors in the IPMI V2.0, rev. 1.1, October 1, 2013 release.

Published: October 1, 2013

This is a markup showing the revisions added by Errata 5 over the IPMI v2.0 rev. 1.0 Errata 4 markup. The markup also includes the Errata 1 through Errata 4 changes, but only shows the Errata 5 changes as revisions.

Published: June 12, 2009

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 the boot options, Entity IDs, Sensor Types, and the RAKP description. A corresponding markup of the v2.0 specification is also available.

Published: June 12, 2009

This is a version of the IPMI Second Generation, v2.0, rev. 1.0, specifications with revisions marked cumulatively per revisions 1 through 4 of the IPMI v2.0/v1.5 errata document.

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 Remote Management Control Protocol+ (RMCP+) 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 Adopter's agreement.

Download v1.5 specifications:

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.

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.

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.

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, v1.5, white paper overview for brief outline of the features and changes in IPMI, v1.5. The 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.

Download supporting specifications:

Published: February 28, 2013

This document defines and describes the common format and use of the Field Replaceable Unit (FRU) Information storage in platforms using IPMI. Revision 1.2 includes clarifications, corrected typos, updated references, ‘AS F’  Multi Record types, and two new record types to support larger maximum DC output and load currents for power supplies. Refer to the Revision History in the document for more information.

Published: February 6, 2006

This draft document from Intel, Dell, HP, and Avocent describes how Distributed Management Task Force, Inc. (DMTF) 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 v0.50 posting, including classes and processes for mapping IPMI Entities and FRU information, and additional information on sensor mapping and instantiation.

Published: November 15, 1999

This specification defines an internal management bus for extending platform management within a chassis.

Published: September 16, 1998

This document presents the allocation and use of I2C slave addresses for devices on the IPMB.

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.

Published: December, 7, 1998

This specification defines a common format for SNMP Traps generated by platform management hardware, BIOS, or system boot agents.