TCP/IP protocol
TCP (Transmission Control Protocol) transmission control protocol, transport layer protocol.
1. Layering of protocols
The ISO network layer is divided into 7 layers
Second, the role of stratification
Specific communication situation:
3. Message transmission
Three-way handshake to connect, four-way handshake to release
Reference link:
https://zhuanlan.zhihu.com/p/33889997
Detailed explanation of TCP/IP protocol
https://blog.csdn.net/ChenGuiGan/article/details/80963507
ISO seven-layer protocol model architecture, analysis of each layer and its protocol