IPMI (Intelligent Platform Management Interface) is a standard for remotely managing computer hardware and monitoring server health. It defines interfaces for managing hardware on multiple system platforms in a common way. The IPMI architecture uses a baseboard management controller (BMC) that provides remote access even when the server is powered off or not functioning properly. The BMC communicates with system interfaces and management buses to monitor sensors, log events, power cycle equipment, and more. This allows data centers to manage hardware remotely across different vendors and platforms.