Dividing the network into these seven layers provides these advantages

Reduces complexity :

It breaks network communication into smaller, simpler parts. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.

Standardizes interfaces :

It standardizes network components to allow multiple vendor development and support.

Facilitates modular engineering :

It allows different types of network hardware and software to communicate with each other.

Interoperability between Vendors :

It allows multiple-vendor development through standardization of network components. Defines the process for connecting two layers together, promoting interoperability between vendors It Allows vendors to compartmentalize their design efforts to fit a modular design, which eases implementations and simplifies troubleshooting.

Ensures interoperable technology :

It prevents changes in one layer from affecting the other layers, allowing for quicker development.

Accelerates evolution :

It provides for effective updates and improvements to individual components without affecting other components or having to rewrite the entire protocol.

Simplifies teaching and learning :

It breaks network communication into smaller components to make learning easier. Provides a teaching tool to help network administrators understand the communication process used between networking components.