7 layers of osi model

ISO/OSI network models have been porting Android video codec recently. I haven't written a blog for a long time. I want to write something about the network. I first introduced the ISO network model to my shoes. First, I will draw a picture for your understanding. Www.2cto.comBased on the reference model diagram above, I will explain each layer of the ISO/

This section summarizes the overall framework of network communication and its underlying process. We have learned about the creation and application of sockets, in fact, we are only using sockets this tool, the underlying details of which we are shielded. To complete the data transmission through the Internet, in fact, not only software can be solved, but also need to build hardware systems. Therefore, in order to solve this problem, many experts gathered together, these people are har

The gateway works on the layer 4 transmission layer and above. Network Layer: vro Data link layer: bridge, switch Physical Layer: Nic, network cable, Hub, repeater, Modem OSI has 7 layers: application layer, presentation layer, Session Layer, transmission layer, data link layer, and physical layer. [7]: application

Ha, finally to the network knowledge article. Always do not know how to write this blog, because the knowledge point is too much, the content is really not good to write Ah! But, after all, as an IT staff, do not learn network knowledge how to go out? So, to the next, before the explanation, I first come to the concept of science, what is the OSI seven layer model?The so-called seven-layer

to make a mistake. This layer specifies the topology and provides hardware addressing;Layer 1th Physical layer: At the very bottom of the OSI reference Model. The primary function of the physical layer is to use physical transport media to provide a physical connection to the data link layer for transparent transfer of bitstream.When data is sent, it is transmitted from the seventh layer to the first layer

Many training institutions and training tutorials have taken the "OSI Reference Model" as the beginning of the curriculum, which is a very important foundation for our learning network. The following is the OSI structure diagramOSI: Layer Seventh Application layer (application)Sixth Layer Presentation layer (Presentation)Level fifth sessionFourth layer Transport

Osi:open System interconnection Open Systems interconnectBirth date: The 1970sDevelopment Organization: ISO (International Organization for Standardization)Historical reasons for the OSI Reference Model:International hope that different manufacturers of products can communicate with each other.Features: LayeringDefinition of a layer: a logical grouping of functionally similar functions during communicationTiering Benefits1. Reduce the difficulty and c

The OSI Layer-7 model is easy to understand and can't be remembered many times. I read it again today and found that it is more logical and easier to remember to look at the problem from the perspective of historical deduction. This article is not necessarily rigorous and may be flawed. It mainly serves to help people with poor memory. In general, the

OSI reference model and troubleshooting The bottom layer of the OSI reference model provides services for its upper layer. Therefore, troubleshooting should also be performed from the bottom layer to the upper layer. If you are an IT support staff member of a company and an employee calls to say that the webpage cann