Intel SE7525GP2 Product Specification - Page 115
Messaging Interfaces
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Intel® Server Boards SE7320SP2 and SE7525GP2 Platform Management 5.2.3.1 Private Management I2C Buses The mBMC implements a single private management bus. The mBMC is the sole master on this bus. External agents must use the mBMC Master Write/Read I2C command if they require direct communication with a device on this bus. In addition, the mBMC provides a Reserve Device command that gives an external agent exclusive access to a specific device for a selectable time. 5.2.4 Messaging Interfaces This section describes the supported mBMC communication interfaces: Host SMS interface via SMBus interface LAN interface using the LAN On Motherboard SMBus 5.2.4.1 Channel Management The mBMC supports two channels: System interface 802.3 LAN Table 48. Supported Channel Assigments Channel Id Media type 1 802.3 LAN 2 System Interface Interface IPMB 1.0 IPMI-SMBus Supports Sessions Multi sessions Session-less 5.2.4.2 User Model The mBMC supports one anonymous user (null user name) with a settable password. The IPMI command to set the password is supported. 5.2.4.3 Request/Response Protocol All of the protocols used in the host interface and the LOM interface are Request/Response protocols. A Request Message is issued to an intelligent device, to which the device responds with a separate Response Message. Revision 4.0 103