PMCI Platform Management Communications Infrastructure

Working Group Chair(s)

  • Hemal Shah, Broadcom Inc.
  • Patrick Caporale, Lenovo

Working Group Description

The Platform Management Communications Infrastructure (PMCI) Working Group defines standards to address “inside the box” communication interfaces between the components of the platform management subsystem. PMCI Working Group Specifications are referenced and used by other industry organizations and specifications.

The group develops the Network Controller Sideband Interface (NC-SI), Management Component Transport Protocol (MCTP), and Platform Level Data Model (PLDM) that provide a comprehensive, common architecture for improved communication between management subsystem components. These specifications enable the monitoring and control of systems independent of the OS state, when the OS is running or an OS is not available (for example, when a system is booting, before the OS has loaded, or when the OS is inoperable).
 
The PMCI WG creates intra-platform manageability standards and technologies, which complement DMTF’s other standards such as the Redfish API from the Redfish Forum, Security Protocol and Data Models (SPDM) from the SPDM WG, Common Information Model (CIM) profiles, as well as remote access protocols that are defined in the other DMTF groups.

DMTF has an assigned PCI Vendor ID of 0x1AB4 for usage with the MCTP over PCIe VDM specification.

Get Involved

  • Technical work on the NC-SI, MCTP, and PLDM standards takes place in the Platform Management Communications Infrastructure (PMCI) Working Group.
  • DMTF members are encouraged to contribute and access the work of the PMCI Working Group via its private, members-only workspace. Non-members, learn more and join DMTF to participate. 
  • DMTF welcomes feedback on our standards, but requires that individuals submitting comments first agree to our DMTF Feedback Policy.

 

Upcoming Workgroup Deliverables

DMTF Standard
Publication Identifier
Document TitleTarget VersionTarget Release Date
DSP0218PLDM for Redfish Device Enablement1.2.0Published
DSP0240PLDM Base Specification1.2.0Published
DSP0249PLDM State Set Specification1.2.0Published
DSP0256MCTP Host Interface Specification2.0.02024Q4
DSP0242PLDM for File Transfer Specification 1.0.0Published
DSP0290MCTP UCIe™ Transport Binding Specification1.0.02024Q4
DSP0291PCIe Management Interface (PCIe-MI) over MCTP Binding Specification1.0.02024Q3
DSP0292MCTP PCC Transport Binding Specification1.0.02024Q4
DSP0283MCTP over USB Binding Specification1.0.0Published
DSP0236MCTP Base Specification2.0.02024-25
DSP0238MCTP over PCIe VDM Binding Specification1.3.02024Q3
DSP0248PLDM for Platform Monitoring and Control1.3.0Published
DSP0220DMTF FRU Data Model and Schema Specification1.0.02024Q3
DSP0257PLDM for FRU Data Specification2.0.02024Q4
DSP2061PLDM Accelerator Modeling1.0.12024Q3
DSP2067PLDM CXL Memory Modeling1.0.0Published
libpttiImplementation of DSP0280 (PMCI Test Tools Interface and Design Specification)1.0.02024

Work in Progress Documents

DSP # Version Title Date Comments Versions
DSP0256 2.0.0WIP50 Management Component Transport Protocol (MCTP) Host Interface Specification 2 Apr 2024 Work-in-Progress View
DSP0292 1.0.0WIP50 Management Component Transport Protocol (MCTP) PCC Transport Binding Specification 25 Apr 2024 Work-in-Progress View
DSP0238 1.3.0WIP80 Management Component Transport Protocol (MCTP) PCIe VDM Transport Binding Specification 2 Apr 2024 Work-in-Progress View
DSP0291 0.6.0WIP50 PCIe Management Interface (PCIe-MI) over MCTP Binding Specification 8 Feb 2024 Work-in-Progress View

White Papers and Technical Notes

DSP # Version Title Date Comments Versions
DSP2015 2.0.0 Platform Management Components Intercommunication (PMCI) Architecture White Paper 25 Sep 2019 Informational View
DSP2037 1.0.0 MCTP Packets and NC-SI over MCTP Overview 20 Feb 2014 Informational View
DSP2016 1.0.0 Management Component Transport Protocol (MCTP) Overview White Paper 8 Jul 2007 Informational View
DSP2067 1.0.0 PLDM CXL Memory Modeling White Paper 24 Jun 2024 Informational View
DSP2054 1.0.0 PLDM NIC Modeling 18 Dec 2019 Informational View
DSP2061 1.0.0 Platform Level Data Model (PLDM) Accelerator Modeling 13 Jun 2023 Informational View

Open Source Projects using DMTF PMCI Technologies

DMTF technologies are leveraged in numerous third-party open source projects. If you are aware of any additional projects using DMTF technologies that are not included below, please contact us so we can add them to the list.
Title Description of Tool PMCI Standard
OpenBMC

The OpenBMC project can be described as a Linux distribution for embedded devices that have a BMC; typically, but not limited to, things like servers, top of rack switches or RAID appliances.

NC-SI