OSI stratified model!
2018-03-10
OSI model
| layer | data | protocol(main) | description |
|---|---|---|---|
| Physical | bits | PHY | electrical and physical specification |
| Data link | frame | MAC | error correction and flow control |
| IP | |||
| Network | packet | IP | address resolution and routing |
| Transport | segment | UDP,TCP | |
| PORT | |||
| Session | report | socket | |
| Presentation | report | MIME,SSL,TLS | |
| Application | report | HTTP,IMAP |