In an enterprise environment, the demarcation point (also known as the demarc) is typically located at the point where the structured cabling system of the enterprise meets the service provider’s network. This is usually located at the telecommunications room, where the service provider’s network terminates and the enterprise’s internal network begins. The demarc is often a physical interface, such as a panel or a hub, that separates the two networks and allows for the exchange of data and communications between them. It is an important part of the enterprise’s networking infrastructure, as it allows the service provider and the enterprise to manage and maintain their respective networks independently.
Related: What is Structured Cabling?