What is computer network architecture?

Computer network architecture refers to the hierarchical structure model of a computer network. It is a collection of protocols at each layer and ports between layers. Communication in a computer network must rely on network communication protocols. Currently, the widely used The open system interconnection reference model proposed by the International Organization for Standardization in 1997.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Computer network architecture

Computer network architecture refers to the computer network hierarchical structure model, which is the protocol of each layer and the ports between layers. gather. Communication in a computer network must rely on network communication protocols. Currently, the Open System Interconnection (OSI) reference model proposed by the International Organization for Standardization (ISO) in 1997 is widely used. It is customarily called the ISO/OSI reference model.

Introduction

Computer network structure can be described from three aspects: network architecture structure, network organization and network configuration. The network architecture is described from a functional perspective, referring to the computer network hierarchical structure model and the collection of protocols at each layer; the network organization is described from the physical structure of the network and the implementation of the network; the network configuration describes the computer network from the perspective of network applications. layout, hardware, software and communication lines.

Computer network architecture is a precise definition of the functions that a computer network and its components should complete. What kind of hardware or software these functions are completed by follows this architecture. The architecture is abstract and the implementation is concrete, running on computer software and hardware.

The world's first network architecture was proposed by IBM in the United States in 1974. It was named System Network Architecture SNA (System Network Architecture). Any device that follows SNA is called an SNA device. These SNA devices can be easily interconnected. Since then, many companies have also established their own network architectures. These architectures are similar and use hierarchical technology.

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