What is OSI?
OSI (Open System Interconnect), that is, open system interconnection. Generally called the OSI reference model, it is a network interconnection model studied by the ISO (International Organization for Standardization) in 1985.
In order to better make network applications more popular, ISO launched the OSI reference model. The implication is that all companies are recommended to use this specification to control their networks. In this way, all companies have the same specifications and can be interconnected.
What are the TCP/IP five-layer model and the OSI seven-layer model?
TCP/IP five-layer model
The first layer is the physical layer
The second layer is the data link layer The third
layer is the network layer
The fourth layer is the transport layer
The fifth layer is the application layer
The working equipment of the TCP/IP five-layer model and the OSI seven-layer model
TCP/IP five-layer model and OSI seven-layer model protocol
