Computer Network layered architecture
A computer network model is a theoretical framework that describes how data is transmitted and processed within a computer network. There are several different types of network models, each with their own unique characteristics and features.
OSI (Open Systems Interconnection) model:
OSI(open system interconnection) is a seven-layer model that describes how data is transmitted and processed within a network. Each layer serves a specific function, such as data encapsulation, error detection and correction, and flow control.
TCP/IP (Transmission Control Protocol/Internet Protocol) model:
This is a four-layer model that is widely used in the internet and other networks. The model includes the Network Interface Layer, Internet Layer, Transport Layer and Application Layer
The Client-Server Model:
Client-Server is a model in which the client requests information from the server, and the server sends the information back to the client. This model is commonly used in the World Wide Web, where the client is a web browser and the server is a web server.
The Peer-to-Peer Model:
Peer-to-Peer model is a model in which all computers are considered equal and can act as both clients and servers. This model is commonly used in file sharing networks.
Each model has its own set of protocols and technologies that are used to transmit and process data. Understanding the different network models can help you to better understand how data is transmitted and processed within a network, and can also help you to design and troubleshoot networks.
Layered architecture of computer network
In computer networking, a layered architecture refers to the use of multiple layers, or levels, of protocols and technologies to handle different aspects of data transmission and processing. Each layer serves a specific function and interacts with the layers above and below it to provide a complete network solution. The most common examples of layered architecture in networking are the OSI (Open Systems Interconnection) model and the TCP/IP (Transmission Control Protocol/Internet Protocol) model.
OSI Model
The OSI model is a seven-layer model that describes how data is transmitted and processed within a network. Each layer serves a specific function, such as data encapsulation, error detection and correction, and flow control.
TCP/IP Model
The TCP/IP model is a four-layer model that is widely used in the internet and other networks. It includes the Network Interface Layer, Internet Layer, Transport Layer and Application Layer. Each layer of the TCP/IP model corresponds to one or more layers of the OSI model, and they work together to provide a complete network solution.
Layered architecture allows network protocols and technologies to be developed, tested and updated independently of each other, which makes it easier to add new features, fix bugs, and improve performance. It also makes it easier to troubleshoot and diagnose problems in the network, as each layer can be examined and managed separately.
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Created by-- HARSH CHAUHAN
