OSI model

1. Application - give networking options for programs
2. Presentation - translate Application layer data into standardized data
3. Session - maintain the connection
4. Transport - [[TCP]] [[UDP]], splitting data into segments/datagrams
5. Network - locate destination of request ([IP]), [[routing]], NAT
6. Data Link - physical addressing of transmission (MAC), check for corruption, ethernet, [[switching]], [[STP]]
7. Physical - hardware, binary data -> info and vice versa

!["OSI encapsulation.jpg"]