Follow Those Packets!!! Dive Into Network Foundations For Everyone!
summary
Live demo boots a kind Kubernetes cluster in GitHub Codespaces, uses Cilium CNI and Pulumi to deploy a three‑pod Star Wars app and apply a Kubernetes NetworkPolicy that successfully blocks the X‑Wing from reaching the Death Star while the TIE Fighter still connects; some live demo copy/paste and timing hiccups occur. Presentation shows packet structure, ARP/routing, network namespaces, VXLAN/SDN, and eBPF use cases; recommends tools Wireshark, Hubble, iperf and tracing for observability.
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chapters (17)
- 0:00Introduction
- 1:06Networking agenda
- 3:13Kubernetes networking
- 6:25Star Wars firewall demo
- 13:51Data movement basics
- 14:54OSI model and protocols
- 21:12BGP and programmable networking
- 21:54What is a packet
- 24:21Packet routing layers
- 26:06Scaling data center networks
- 27:51DNS critical role
- 30:02Software defined networking
- 32:09HTTP status codes
- 32:51Network namespaces and CNI
- 35:58Network tracing tools
- 38:03eBPF kernel networking
- 39:26Q&A
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