A network model encompasses the design of a computer network, comprising hardware, software, access methods, and protocols. It serves as a conceptual framework for communication between computers and typically adopts a layered structure.
Layered Architecture of Network Models
Communication in a computer network involves a layered structure where corresponding layers perform similar functions for both senders and receivers. A shared language, known as a protocol, facilitates conversation.
Benefits of Layered Architecture:
The layered architecture brings forth several advantages, including:
- Easy Debugging: Simplifies the identification and resolution of issues in network applications.
- Simplified Network Management: Structured architecture streamlines the management of network components and operations.
- Adherence to Protocols: Network layers follow predefined rules, encapsulated in protocols, ensuring standardized communication.
- Protocol-Defined Handshakes: Protocols dictate the data format, control, and timing for seamless interactions between layers.
Layered Task
The primary objective of a computer network is to transfer data from sender to receiver. This intricate task is deconstructed into well-defined subtasks, each with its distinct processes, inputs, and outputs, collectively referred to as layers. This layering approach, a fundamental principle, is universally applicable to various job domains.
Illustrating the Necessity of Layering:
To illustrate the necessity of layering and the use of common protocols for communication in network architecture, consider an analogy from daily life: two friends communicating through postal mail in a step-by-step manner. This scenario helps elucidate the importance of layering and protocol-defined communication in network architectures.
.png) |
| Example of Layered Task
|
