{
  "status": "shipping",
  "advantages": [],
  "limitations": [
    {
      "text": "MCTP itself does not provide authentication or confidentiality.",
      "citationIds": [
        "mctp-base"
      ]
    }
  ],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-10-21",
  "slug": "mctp",
  "term": "Management Component Transport Protocol",
  "aliases": [
    "MCTP"
  ],
  "definition": "Management Component Transport Protocol (MCTP) carries messages between platform-management components over defined physical transport bindings.",
  "note": "The base protocol handles message delivery independently of the binding used for a particular bus. NVMe-MI is one protocol carried above MCTP, not another name for it. [mctp-base] [mi22]\n\nLinux exposes MCTP through AF_MCTP datagram sockets. Routes belong to a network, while interfaces represent transport bindings; one network can span several interfaces. A working socket API alone does not establish a reachable device. [linux-mctp]",
  "related": [
    "mctp-endpoint-id",
    "mctp-message-tag",
    "nvme-mi",
    "out-of-band-management"
  ],
  "citations": [
    {
      "id": "mctp-base",
      "title": "DMTF DSP0236 v1.3.3: sections 7, 8.13, 8.18.9 and 8.19",
      "url": "https://www.dmtf.org/sites/default/files/standards/documents/DSP0236_1.3.3.pdf",
      "accessed": "2026-10-21"
    },
    {
      "id": "linux-mctp",
      "title": "Linux kernel documentation: MCTP interfaces, networks and socket addresses",
      "url": "https://docs.kernel.org/networking/mctp.html",
      "accessed": "2026-10-21"
    },
    {
      "id": "mi22",
      "title": "NVM Express Management Interface 2.2: sections 1.3, 3, 8.1 and Figure 105",
      "url": "https://nvmexpress.org/wp-content/uploads/NVM-Express-Management-Interface-Specification-Revision-2.2-Ratified-2026.07.31.pdf",
      "accessed": "2026-10-21"
    }
  ],
  "provenance": [
    "Protocol scope follows DMTF DSP0236 v1.3.3, dated 25 March 2024. Linux API documentation was checked on 21 October 2026. No hardware interoperability test is claimed."
  ]
}