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What this article shares with you is about which layer of the TCP/IP reference model corresponds to the transport layer of the OSI reference model. The editor thinks it is quite practical, so I share it with you to learn. I hope you can get something after reading this article. Without saying much, follow the editor to have a look.

The transport layer in the TCP/IP reference model corresponds to the transport layer in the OSI reference model. The OSI architecture standard defines a seven-layer framework for network interconnection, including physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer.

The transport layer in the TCP/IP reference model corresponds to the transport layer in the OSI reference model.

Related introduction:

OSI (Open System Interconnect), that is, open systems interconnection. Commonly known as the OSI reference model, it is a network interconnection model studied by the ISO organization in 1985.

The architecture standard defines the seven-layer framework of network interconnection (physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer), that is, the reference model of OSI open systems interconnection.

Advantages of the OSI reference model:

1. Division of labor and cooperation with clear responsibilities

The work of similar nature is divided into the same layer, while the work of different nature is divided into different layers. In this way, the scope of work of each layer will be clearly defined and will not overlap with each other. In case something goes wrong, it is easy to judge which layer has not been done well, so you should improve the work of that layer first so that you will not be at a loss to start.

2. Peer-to-peer conversation

Equivalence refers to the same level, and peer-to-peer conversation means to talk to the same level at the same level, for example, level 3 to level 3, level 4 to level 4. And so on.

Therefore, the N layer of one side only talks to the N layer of the other party, whether it receives and interprets the message sent by itself, and there is no need to care about what the N-1 layer or N + 1 layer of the other party will do, because that is handled by the N-1 layer and N + 1 layer of the other side.

In fact, it is a common rule for both parties to talk in a reciprocal capacity, and the greatest advantage of this is that it simplifies the responsibilities of each layer. Therefore, the communication protocol is all the conventions when the peer communicates.

3. Deal with it layer by layer and be responsible for it layer by layer

Since the hierarchy is very clear, things should of course be handled step by step, layer by layer, and should never be allowed to go beyond the upper level or the next level. Therefore, after receiving the data in the N layer, the data must be processed first before the data will be transmitted upward to the N + 1 layer. If the data from the N + 1 layer is received, it will also be processed correctly before it is transmitted down to the N-1 layer.

When any layer receives the data, it can be believed that the upper layer or the next layer has done what they are supposed to do, and the level of the layer should also consider the difficulty of efficiency and actual operation, not the more layers the better.

The above is which layer of the TCP/IP reference model corresponds to the transport layer of the OSI reference model. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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