So, in a sense, the OSI model is sort of a standard of standards. The Seven Layers of the OSI Model LayerNameDescription 1 Physical Governs the layout of cables and devices such as repeaters and hubs. 2 Data Link Provides MAC addresses to un...
参考 OSI 7-Layer Model and the role of each layer OSI model The OSI Model's Seven Layers Defined and Functions Explained Computer Networking 通俗大白话来理解TCP协议的三次握手和四次分手
The Network Layer stands as the third layer in the OSI (Open Systems Interconnection) Model, a framework that standardizes the functions of a telecommunication or computing system into seven layers. The Network Layer is crucial for the routing and forwarding of data packets across different networks...
The Application Layer of the OSI model hosts a variety of protocols, each designed to fulfill specific communication and data transfer needs across the network. These protocols define how data is formatted, transmitted, and received, and they often incorporate security measures to safeguard data integ...
为了使不同计算机厂家生产的计算机能够相互通信,以便在更大的范围内建立计算机网络,国际标准化组织(ISO)在1978年提出了“开放系统互联参考模型”,即著名的OSI/RM模型(Open System Interconnection/Reference Model)。它将计算机网络体系结构的通信协议划分为七层,自下而上依次为:物理层(Physics Layer)、数据链路层(Data...
In the seven-layer OSI model of computer networking, the network layer is layer 3. The network layer is responsible for packet forwarding including routing through intermediate routers, since it knows the address of neighboring network nodes, and it also manages quality of service (QoS), and rec...
1.3.4 Seven-Layer OSI Model The ISO was one of the first organizations to formally define a common way to connect computers. Their architecture, called the Open Systems Interconnection (OSI) architecture and illustrated in Figure 1.13, defines a partitioning of network functionality into seven laye...
What is the OSI model and its 7 layers? OSI is a communications reference model to help conceptualize how data can be transmitted and received on a network. The model consists of seven distinct layers forming astack. Each layer in the stack is performed in a step-by-step manner: first, ...
Network layer Transport layer Session layer Presentation layer Application layer When it comes to network topology, the lower levels of the OSI model are the most important, so this guide will focus on the first four layers. Knowing how these layers work will contribute to your understanding of ...
The seven layers of the ISO OSI reference model (Fig. 9) are: (1) the physical layer, (2) the data link layer, (3) the network layer, (4) the transport layer, (5) the session layer, (6) the presentation layer, and (7) the application layer. Specific protocols and their descript...