Layer Cake

Layer Cake is a method of organizing data in a network, where each layer has a specific role, such as handling physical connections, managing data transfer, or providing security. Think of it like a multi-story building: each floor has its own purpose and communicates with the floors above and below. This structure helps isolate functions, making networks easier to design, troubleshoot, and upgrade. The concept is fundamental in network communications, aligning with the OSI (Open Systems Interconnection) model, which standardizes how different systems interoperate across seven layers.