Shulou(Shulou.com)06/01 Report--

Main content:

TCP three-way handshake

TCP four-way handshake

packet-switched

selective retransmission

First question: What is TCP?

TCP (Transmission Control Protocol) is a connection-oriented, reliable, byte stream-based transport layer communication protocol. As shown in the osi seven-layer network model below, the network is divided into seven layers. Tcp transmission control protocol in the fourth transport layer,

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