In an enterprise managed scenario, such as the one shown in Figure 1–2, all of the MEP components and the database or EIS/EAI system are in the corporate network.
The carrier's network includes no MEP components. The corporate network, in essence, controls all of the MEP components as well as the database or EIS/EAI system. In the corporate network, the MEP components can be configured in a single-tier or two-tier configuration. These configurations are described in MEP Architecture.