#CNI
1 posts
14 min read
K8s Advanced #1: CNI in Depth — Calico / Cilium / eBPF
The first post in the K8s Advanced series. In [Intermediate #7](/en/posts/k8s-intermediate-7), one line was left while covering NetworkPolicy: "the manifest is K8s standard, but actually blocking traffic is the CNI plugin's job." This post unfolds that one line. What CNI is, how the same K8s manifest runs differently on Calico vs Cilium, and how eBPF redraws the data plane — all in one cycle.