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The baseboard management controller (BMC) provides the intelligence in the IPMI architecture. It is a specialized microcontroller embedded on the motherboard of a computer – generally a server. The BMC manages the interface between system-management software and platform hardware. BMC has its dedicated firmware and RAM.
Management Component Transport Protocol (MCTP) is a protocol designed by the Distributed Management Task Force (DMTF) to support communications between different intelligent hardware components that make up a platform management subsystem, providing monitoring and control functions inside a managed computer system.
NC-SI, abbreviated from network controller sideband interface, is an electrical interface and protocol defined by the Distributed Management Task Force (DMTF). The NC-SI enables the connection of a baseboard management controller (BMC) to one or more network interface controllers (NICs) in a server computer system for the purpose of enabling out-of-band system management.
The OpenBMC project is a Linux Foundation collaborative open-source project that produces an open source implementation of the baseboard management controllers (BMC) firmware stack. [ 1 ] [ 2 ] [ 3 ] OpenBMC is a Linux distribution for BMCs meant to work across heterogeneous systems that include enterprise, high-performance computing (HPC ...
Thus, out-of-band nature of the management traffic is ensured in a shared-connection scenario, as the system configures the NIC to extract the management traffic from the incoming traffic flow on the hardware level, and to route it to the BMC before reaching the host and its operating system. [5]
In most of these systems, the hardware is not open to run general purpose applications. Bare machine computing originated with the application object (AO) concept invented by Karne at Towson University. [4] It evolved over the years into dispersed operating systems (DOSC), [5] and eventually into the BMC paradigm.
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The MegaRAC from American Megatrends is a product line of baseboard management controller (BMC) firmware packages and formerly Service Processors providing complete Out-of-band, or Lights-out remote management of computer systems independently of the operating system status or location to troubleshoot computers and assure continuity of service.