Entire Linux Network stack diagram (2024)

Diagram of entire Linux Network Stack, including:

• Virtualization and Linux containers:
  • Emulation and Paravirtualization.
• Network sockets.
• Network stack:
  • Upper layer of Network stack (TCP, UDP).
  • Low layer of Network stack with GRO, RPS, RFS and GSO.
• Network Scheduler.
• NetFilter and traffic controll:
  • Bridge and Bond interfaces.
  • Tap interface, ...
• Device Driver:
  • Queue.
  • NAPI.
  • IRQ handler.
• Network functions accelerated by NIC:
  • Checksum offload, VLAN, VxLAN, GRE, TSO, LRO, RSS, ...
• Network card.

All (above) sections (layers) include tips for optimizations and/or statistics.

This diagram is part of the book: 

Operativni sustavi i računalne mreže - Linux u primjeni

https://doi.org/10.5281/zenodo.8119310

Linux Network Stack - EN.pdf