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This article examines Kubernetes networking by defining underlay and overlay models, describing how underlay networks like flannel host‑gw and Calico BGP operate, explaining IPVLAN/MACVLAN virtualization, and reviewing common tunnel protocols such as VxLAN and IPIP used by various CNI plugins.
This article explains Kubernetes networking models, detailing the underlay network infrastructure, overlay techniques, and common CNI implementations such as Flannel, Calico, IPVLAN, and VxLAN, while comparing their architectures, protocols, and configuration considerations.
This article provides a comprehensive overview of Kubernetes networking by explaining the concepts of underlay and overlay network models, describing their implementations such as flannel host‑gw, Calico BGP, IPVLAN/MACVLAN, and tunneling technologies like VxLAN and IPIP, and offering practical references for each approach.
The article traces Redis’s shift from its original single‑threaded reactor model to the I/O‑threaded architecture introduced in version 6, explaining how atomic operations and round‑robin client distribution let separate threads handle network I/O and parsing while the main thread executes commands, yielding roughly a two‑fold throughput boost but retaining a single‑threaded command core and incurring brief CPU spikes from busy‑wait synchronization.