Learning Python Networking - Second Edition
by José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington
TCP
The TCP protocol, unlike the UDP protocol, is connection oriented. When machine A sends data to machine B, machine B is informed of the arrival of this data and confirms its good reception.
Here, the CRC control of data intervenes, which is based on a mathematical equation that allows you to verify the integrity of the transmitted data. In this way, if the received data is corrupted, the TCP protocol allows the recipients to request the sender to send them again.
This protocol is one of the main protocols of the transport layer of the TCP/IP model, since, at the application level, it makes it possible to manage data coming from the lowest level of the model.
So, when data is provided to the IP protocol, it binds it in IP datagrams, fixing ...
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