2025年1月20日 · The OSI Model is a seven-layer framework that standardizes how different computer systems communicate over a network, facilitating data transmission and troubleshooting by defining specific functions for each layer.

In the OSI reference model, the components of a communication system are distinguished in seven abstraction layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. [3]

2025年1月15日 · What Is the OSI Model? The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over a network. The OSI model is divided into seven distinct layers, each with specific responsibilities, ranging from physical hardware connections to high-level application interactions.

2025年2月25日 · 会话层（Session Layer） 负 责在网络中的两节点之间建立、维护和终止通信。它提供的服务包括建立和维护会话，以及数据交换的同步。会话层使用校验点可以使通信会话在通信失效时从校验点继续恢复通信。

2020年12月21日 · This article explains the Open Systems Interconnection (OSI) model and the 7 layers of networking, in plain English. The OSI model is a conceptual framework that is used to describe how a network functions. In plain English, the OSI model helped standardize the way computer systems send information to each other.

實體層（Physical Layer）負責管理電腦通訊設備和網絡媒體之間的互通。 包括了針腳、電壓、線纜規範、集線器、中繼器、網卡、網路線、主機介面卡等。

2024年3月23日 · OSI七层网络模型 物理层（Physical Layer）：该层为上层协议提供了一个传输数据的可靠的物理媒体。简单的说，物理层确保原始的数据可在各种物理媒体上传输。

2025年2月2日 · OSI Model simply refers to a model that proposes multiple logical layers that define functions, features, interoperability. OSI model consist of 7 layers each of them provide unique network service and function to create a complete model for network communications.

2025年1月22日 · It includes 7 layers of OSI model, each with its protocol and purpose. Understanding how the OSI layer works together can help us better understand modern network systems’ intricate details and workings. In this article, we’ll discuss the various components of the OSI layer model and how they all work together to enable network communications.

2024年6月27日 · OSI model is a layered server architecture system in which each layer is defined according to a specific function to perform. All these seven layers work collaboratively to transmit the data from one layer to another. The Upper Layers: It deals with application issues and mostly implemented only in software.