Networking Overview: Difference between revisions
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Information sent over a network is layered like an onion.<br> | Information sent over a network is layered like an onion.<br> | ||
As you progress | As you progress closer to your application, the outer layers are removed,<br> | ||
leaving only information that is useful to each stage. | leaving only information that is useful to each stage. | ||
Revision as of 02:30, 8 August 2021
TODO:
is there official documentation for this? an RFC or two maybe?
Tutorials
code a TCP/IP stack https://www.saminiir.com/lets-code-tcp-ip-stack-1-ethernet-arp/
Basics
Information sent over a network is layered like an onion.
As you progress closer to your application, the outer layers are removed,
leaving only information that is useful to each stage.<!-- a pseudocode piece of network data --> <datalink> <network> <transport> <application/> </transport> </network> </datalink>
5-layer TCP/IP model
- layer protocol unit address 1 physical 10 Base T, 802.11 Bits n/a 2 datalink Ethernet, WiFi Frames MAC addr 3 network IP Datagram IP addr 4 transport TCP, UDP Segment Ports 5 application HTTP, SMTP, .. Messages n/a
