What layers does the tcp/ip protocol contain?

The tcp/ip protocol contains 4 layers, namely: 1. Application layer, which provides services for application processes; 2. Transport layer; 3. Network layer, which can establish and terminate network connections; 4. The network interface layer is the physical medium for transmitting data.

There are four layers in the TCP/IP protocol.

1. Application layer: The application layer is the first layer of the TCP/IP protocol and directly provides services for the application process.

2. Transport layer: As the second layer of the TCP/IP protocol, the transport layer plays a mainstay role in the entire TCP/IP protocol. And in the transport layer, TCP and UDP also play the mainstay role.

3. Network layer: The network layer is located at the third layer of the TCP/IP protocol. In the TCP/IP protocol, the network layer can perform functions such as establishing and terminating network connections and searching for IP addresses.

4. Network interface layer: In the TCP/IP protocol, the network interface layer is located on the fourth layer. Since the network interface layer merges the physical layer and the data link layer, the network interface layer is not only the physical medium for transmitting data, but also provides an accurate line for the network layer.

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