文章首发 原文地址 开发式系统通信互联(OSI)模型开发式系统通信互联(OSI)模型定义了一种实现了在层之间实现网络协议,并且控制一层传递到下一层的网络架构。当今它最主要的用途就是作为教学工具。它在概念上将…
the OSI Model describes the transmission path that data takes from the end-user level (layer 7: Application Layer) to the physical transmission of bits across communication links and network cards (layer 1: Physical Layer) and all layers in between. ...
Application layerIn the OSI model, control is passed from the top to the bottom layers, one layer at a time, beginning with the application layer. Each layer handles a specific task in the data transmission and then passes it on to the next layer using the ‘pass it on’ principle.Layer...
OSI Layer 4: Transport The Transport Layer within the OSI model manages the transfer of data across network connetions, orhosts. It takes data transferred in the session layer and breaks it into “segments” to be transmitted. Conversely, as data comes back through the stack, the Transport La...
OSI模型的数据链路层(Data Link Layer)(即第2层)负责为数据包添加头和尾,为数据包可以转换为适合于局域网和广域网线路传输的二进制格式做准备。第2层可以分为两个功能子层,上子层是逻辑链路控制(Logical Link Control,LLC)子层,并在IEEE 802.2规范中定义,它与数据链路层之上的网络层(NetworkLayer)通信。LLC...
Dive deep into the OSI Model to understand its seven layers, their functions, and how it defines the networking framework to implement protocols in seven layers.
At which layers of the OSI model do WANs operate? (Choose two.)() A. application layer B. session layer C. transport layer D. network layer E. datalink layer F. physical layer 相关知识点:
What is OSI Model: A Complete Guide to The 7 Layers of the OSI Model In thisFree Networking Training Series, we explored all aboutComputer Networking Basicsin detail. OSI Reference Model stands forOpen system interconnection reference modelwhich is used for communication in various networks. ...
Most network protocol suites are viewed as structured in layers. The International Organization for Standardization (ISO) designed the Open Systems Interconnection (OSI) Reference Model that uses structured layers. The OSI model describes a structure with seven layers for network activities. Each layer ...
Because the Data Link layer is the most complex layer in the OSI model, it is often divided into two parts: theMedia Access Controlsub-layer and theLogical Link Controlsub-layer. Network Layer The Network layer adds the concept of routing above the Data Link layer. When data arrives at th...