description: > Describe an MCTP endpoint. It is an MCTP communication terminus. An MCTP endpoint is a terminus or origin of MCTP packets or messages. The combined functionality within a physical device that communicates using the MCTP transport protocol and handles MCTP control commands. This includes MCTP-capable management controllers and managed devices. properties: - name: NetworkId type: size description: > A locally defined identifier to distinguish each independent MCTP network within a platform. The network IDs are used by the MCTP stack to index separate MCTP Networks. This along with EID is used by upper layer protocols to address the destination endpoint. - name: EID type: size description: > The logical address used to route MCTP messages to a specific MCTP endpoint. A numeric handle (logical address) that uniquely identifies a particular MCTP endpoint within a system for MCTP communication and message routing purposes. Endpoint IDs are unique among MCTP endpoints that comprise an MCTP communication network within a system. MCTP EIDs are only unique within a particular MCTP network. That is, they can be duplicated or overlap from one MCTP network to the next. This is also referred to as "endpoint ID" and abbreviated as "EID". - name: SupportedMessageTypes type: array[byte] description: > List of MCTP message types supported by the MCTP endpoint. MCTP message type is an enumeration that identifies the type of the communication payload in an MCTP message. The well defined message types are MCTP Control(0x00), PLDM(0x01), NC-SI over MCTP(0x02), Ethernet over MCTP(0x03), NVM Express Management Messages over MCTP(0x04) and SPDM over MCTP(0x05). There are ranges for vendor defined message types. All the message types are specified in the DSP0239 specification. A device that supports a given message type may not support that message type equally across all buses that connect to the device.