[This talk will be delivered in English]

Cilium has become one of the most widely adopted CNI implementations in Kubernetes.
Yet many engineers use Cilium without understanding how it differs from other CNIs, how eBPF is used inside it, or what new capabilities it enables.

In this session, we will explore the following topics using real eBPF code from Cilium:
- Core responsibilities of a Kubernetes CNI
- How other CNIs, such as Flannel and Calico, implement those responsibilities
- How Cilium implements those responsibilities with eBPF
- Features and optimizations enabled by eBPF, including kube-proxy replacement and netkit

Through a deep dive into Cilium's internals and comparisons with other CNIs, we'll explore what eBPF made possible in Kubernetes networking.