Transport Layer
← Back to OSI and TCP-IP Model
Provides end-to-end communication between applications. TCP offers reliable, ordered delivery with flow and congestion control. UDP provides fast, connectionless, unreliable delivery. QUIC (used by HTTP/3) combines UDP transport with built-in encryption and multiplexing.
Key Properties
Related
- Network Layer (transport sits on top of IP)
- TCP Deep Dive (detailed TCP internals)