Unimog is a layer 4 load balancer built for Cloudflare scale. Cloudflare has written a great blog about it so let us discuss this technology. Video: https://youtu.be/Q0irm6xzNNk
Resources
https://blog.cloudflare.com/unimog-cloudflares-edge-load-balancer/
0:00 Intro
3:33 Layer 4 vs Layer 7 Load Balancers
7:00 Anycast
13:45 Packet Forwarding
23:30 XDP and Network stack
26:45 Maintaining established connection
31:00 Edge Computing
32:00 UDP Routing
33:00 Unimog Summary
34:00 Open Source Software
36:00 K8 Rant
40:00 Conclusion
Cards
6:30 L4 vs L7 proxying https://www.youtube.com/watch?v=aKMLgFVxZYk
12:30 vip https://www.youtube.com/watch?v=85XY7H2JPbs
13:30 tcp handshake https://www.youtube.com/watch?v=bW_BILl7n0Y&t=5s
The Backend Engineering Show with Hussein Nasser