computer network layers architecture (TCP/IP)

计算机网络分层架构

TCP/IP 协议簇

OSI 模型(7 层)

TCP/IP (4 层)

Application (or Process)Internet

Transport (or Host-to-Host)

Internet

Network Access (or Link)

Application (e.g. SNMP, HTTP, FTP)
Presentation (e.g. encryption, ASCII, PNG, MIDI)
Session (e.g. Syn/Ack)

Transport (e.g. TCP, UDP, port numbers)

Network (e.g. IP, routers)

Data Link (e.g. MAC, switches)
Physical (e.g. cable, RJ45)

demos

HTTP 应用层

TCP, UDP 传输层

IP 网络层

refs

https://www.cloudflare.com/learning/ddos/glossary/open-systems-interconnection-model-osi/

https://www.webopedia.com/quick_ref/OSI_Layers.asp

https://www.geeksforgeeks.org/layers-of-osi-model/

https://www.plixer.com/blog/network-layers-explained/

https://www.runoob.com/tcpip/tcpip-tutorial.html

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