While the OSI model is comprehensive reference framework for general networking systems, it's important to mention that the modern Internet doesn’t strictly follow the OSI model. The modern Internet more closely follows the simpler Internet protocol suite , which is commonly known as TCP/IP because the foundational protocols in the suite are ...

Presentation Layer The Presentation Layer represents the area that is independent of data representation at the application layer - in general, it represents the preparation or translation of application format to network format, or from network formatting to application format.

2017年2月15日 · The OSI model was designed to describe the OSI protocol suite. It never had any wider objective, although it has been misused for that purpose for 35 years. 'Open Systems' in its description refers only to the OSI protocol, and certainly does not mean 'these are the systems that are open and communicate with other systems'. –

2020年3月3日 · It's hard to see how REST API could belong to the Layer 6 or Layer 7 of the OSI Model. The Presentation layer provides for negotiation of the form of representation or syntax of the data that will be transferred. Usually mechanisms like character encoding (UTF, ASCII), data encryption and decryption are part of presentation layer.

2023年6月8日 · In which layer is HTTP in the OSI model? 0. osi model presentation layer formatting. 1. OSI Model Layer. 19.

Im having a hard time Categorizing the USB Protocol in the layers of the OSI Model model. Im guess there are 7 layers to begin with. These are the Informations i believe that corresponds to the layers: 7. Application (Software) - Application specific - Additional Drivers / Protocols 6.

2019年2月8日 · I wonder, why SSH is in the Session Layer of Model OSI, but HTTP is in the Application Layer? as I see it, both are working over TCP/IP communication so why discriminate the two protocols to two

2019年1月11日 · While they kind of accurately describe the layers 2..4 especially the OSI models layer 5..7 does not match today's reality. At the time these models were created the network world was much more simpler and the layers 5..7 in the OSI model looked like a useful approach to develop protocols.

e.g. I think in the TCP/IP reference model / architecture, it's Internetwork Layer not Network layer. Network layer is ISO/OSI terminology. And I think there's a "Link Layer" in the TCP/IP ref model that I don't see in your answer. And in the ISO OSI ref model, layer 1(Physical) I have heard a 'packet' there is called a symbol, Layer 2 is a frame.

2015年7月16日 · A packet is a general term for a formatted unit of data carried by a network. It is not necessarily connected to a specific OSI model layer. For example, in the Ethernet protocol on the physical layer (layer 1), the unit of data is called an "Ethernet packet", which has an Ethernet frame (layer 2) as its payload. But the unit of data of the ...