Skip to main content

Networking

Network Layers​

Network Layer (L3)​

IP (Internet Protocol) - Network Layer​

IP routes one packet from a source machine to a destination machine. IP wraps other higher level protocols such as TCP, UDP, etc, which handle routing packets to a specific application/port on the destination machine.

Transport Layer (L4)​

TCP (Transmission Control Protocal) - Transport Layer​

TCP routes data to a specific port. TCP provides acknowledgements to verify that a packet was recieved by the destination as well as ensures ordering of packets.

UDP (User Datagram Protocol) - Transport Layer​

UDP is a lightweight protocol that routes a packet to a specific port. UDP does not handle any acknowledgement or ordering of packets.

TCP/IP​

Introduction to TCP/IP and sockets P1: Introducing the protocols and API: https://youtu.be/C7CpfL1p6y0 (Rhymu's Videos - Jun 14, 2020)