Kubernetes Networking Deep Dive: 16 Diagrams Explain Underlay and Overlay Models
This article provides a comprehensive analysis of Kubernetes networking models, covering underlay (Flannel host-gw, Calico BGP) and overlay (Flannel VxLAN, Calico IPIP/VxLAN, Weave fastdp) approaches, with 16 diagrams illustrating CNI plugins, tunneling protocols, and hardware acceleration technologies like IPVLAN, MACVLAN, and SR-IOV.
