Build a User-Space TCP/IP Stack on DPDK

High-Performance Networking & Cloud-Native · 30 illustrated lessons (text/HTML)

Outcomes

• Implement Ethernet, IP, ICMP, UDP and TCP in user space
• Handle TCP congestion control, timers and multi-threading
• Build a programmable load balancer on your own stack

Where we teach this

• NET-210 · DPDK & Userspace Kernel Bypass live cohort

The lessons

Every lesson in this curriculum, in the order we teach it.

• 1Course introduction
• 2DPDK basics and environment setup
• 3DPDK core concepts explained
• 4DPDK memory management in practice
• 5The DPDK packet-processing framework explained
• 6Protocol-stack architecture design
• 7Link-layer implementation in practice
• 8Network-layer basics in practice
• 9ICMP protocol implementation
• 10UDP protocol implementation
• 11TCP protocol basics
• 12TCP connection management in practice
• 13TCP send and receive: buffers, Nagle's algorithm and delayed ACKs
• 14TCP flow control: sliding-window adjustment, zero-window probing and window scaling
• 15TCP congestion control in practice
• 16Timer management
• 17Socket API compatibility layer
• 18Multithreading and concurrency: stack threading models, lock selection, lock-free data structures and performance
• 19High-performance route lookup in practice
• 20Firewalls and ACLs: access-control list design, rule matching and conntrack implementation
• 21Implementing NAT
• 22Tunnel protocol support: VXLAN parsing and encapsulation, tunnel endpoints and overlay construction
• 23Protocol-stack performance optimisation in practice
• 24Statistics and monitoring: performance counters, traffic statistics, connection-state monitoring and remote management interfaces
• 25Logging and debugging
• 26Interoperating with the kernel network stack
• 27Advanced DPDK features in practice
• 28Test frameworks and cases
• 29Project 1: building a high-performance HTTP proxy
• 30Project 2: a programmable load balancer, with course summary and outlook