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This article explains how the Kube-OVN controller manages pod IP and MAC allocation, processes pod add and delete events through a list‑watch mechanism, and details the worker workflow and key functions involved in networking for Kubernetes clusters.
This article reviews Du Dongming’s presentation on Kube‑OVN, tracing the evolution of cloud‑native networking from early container experiments to modern multi‑tenant VPC, subnet management, overlay/underlay modes, and the roadmap that positions Kube‑OVN as a comprehensive SDN solution for enterprise Kubernetes environments.
The article outlines Kube‑OVN’s evolution from its 2019 debut to becoming the CNCF‑hosted open‑source CNI with extensive enterprise adoption, details recent feature releases such as multi‑VLAN, BGP, Smart‑NIC, DPDK, dual‑stack and multi‑cluster support, and presents a 2021‑2022 roadmap focusing on performance, security, monitoring and broader cloud‑native use cases.
This article describes Ctrip's adoption of Cilium with BGP to build a high‑performance, eBPF‑based cloud‑native network, covering the evolution from Neutron+OVS, the BGP peering model, traffic forwarding paths, L4 load‑balancing, security policy implementation, and multi‑cluster integration using ClusterMesh.
The article summarizes the technical innovations of the open‑source Kube‑OVN project—including a namespace‑based subnet model, comprehensive fixed‑IP support, flexible gateway options, performance optimizations for control and data planes, extensive monitoring tools, and real‑world user cases—highlighting its relevance for modern cloud‑native networking.