Passive IT infrastructure constitutes foundational elements in a network that don't actively process data but provide crucial support. These components, such as cables, racks, and physical structures, establish the necessary framework for active elements' functionality within an IT environment. Their role lies in ensuring connectivity, stability, and physical support for the network. Though not directly involved in data processing, these components form the backbone, enabling seamless operation for the active components handling data transmission, processing, and management. This infrastructure's reliability is pivotal in maintaining the overall efficiency and functionality of the IT network.