osi model poster

Bo is engaged in a FPGA, has not really studied Ethernet-related technology, and now finally can calm down the heart to learn, I hope that they can more in-depth grasp the most basic communication interface technology. Here's the start.I. OSI Reference ModelToday we first learn about Ethernet is the most basic and important knowledge--osi Reference model. 1,

TCP/IP four layer modelTCP/IP is synonymous with a set of protocols, and it also includes many protocols that make up the TCP/IP protocol cluster. TCP/IP protocol cluster is divided into four layers, IP is located in the second layer of the Protocol cluster (corresponding to the third layer of OSI), TCP is located in the third layer of the Protocol cluster (corresponding to the fourth layer of OSI).Applicat

OSI Layer-7 Model OSI: Open System Interconnection Reference ModelProposed by ISO in 1984, the objective is to establish a general network standard. Application LayerProvides user interfaces for users to access the network.For example, email, WWW, and network file access.Session LayerManage sessions between computersImplement inter-computing session controlPres

layer: spdu--represents the Protocol data unitDigital representation of your data (English/Chinese/Picture/mp3 ...) Translated into 01 formats via a certain rule)EncryptionCompressionApplication Layer: apdu--Application Protocol Data UnitInterfaces to provide services to users2.TCP/IP Four-layer network modelThe above mentioned Iso/osi seven layer model is currently just a

the OSI model of network isolation viewed from network attack On the network isolation, we must first talk about the security risks of the network. What is risk. Scan, attack, invade, Trojan and so onis risk. It can be difficult to describe all of the network attacks in a comprehensive way, and there may be thousands of them, but it is entirely possible toSummarized and summarized to locate the layer in t

TCP/IP Reference Model OSI Reference Model Application Layer Application Layer Presentation Layer Session Layer Transport Layer Transport Layer Internetwork Interconnect Layer Network layer Network interface Layer Data Link Layer Physical

1. Definition: OSI (Open System Interconnection), an Open System Interconnection Reference Model, which logically divides the network protocol into seven layers. Each layer has related and corresponding physical devices. For example, a conventional router is a layer-3 switching device and a conventional switch is a layer-2 switching device. The OSI Layer-7

1) OSI seven-layer model and TCP/IP four-layer modelOSI layer Seven model: a standard system developed by the International Organization for Standardization (ISO) for interconnection between computers or communication systems. It is a seven-layer, abstract model that includes not only a series of abstract terms or conc

Reasons for the existence of the OSI model (open System interconnection):The network model is built so that the builders of the network can build networks that can communicate and work with each other, and describe the transmission of data from one computer to another on a network.1.physical LayerDefines the electronic and functional aspects of the connection bet

Table 1-1 is the TCP/IP four-layer model and the OSI seven-layer model table. We correspond the OSI seven-layer network model with the Linux TCP/IP four-layer conceptual model, and then categorize the various network protocols. T

abide by: The OSI seven layer model.OSI seven layer model, does that sound handsome? This standard was born in 1984, only 3 years earlier than I was born (accidentally exposed to their age →_→).The smart reader may have noticed that the standard is a long way behind the advent of the Internet.The reason is simple: the OSI seven-layer

Basic OSI Layer-7 model knowledge and common applications at each layer (1) OSI Open Source Initiative (OSI) is a non-profit organization designed to promote the development of Open Source software. The full name of the OSI Reference Mo