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Technology · Ebook

Kube-OVN: Enterprise SDN for Kubernetes

by Shriira Press

4.7(263)180 pagesPublished 2026

Kube-OVN is a CNCF networking project that wires the mature world of software-defined networking into Kubernetes. Where the default cluster network gives you flat pod connectivity and little else, Kube-OVN borrows Open Virtual Network and Open vSwitch to deliver subnets, fixed IP addresses, virtual private clouds, NAT and elastic IPs, quality-of-service limits, ACL-based network policy, multi-cluster interconnection, and a path toward host-level performance. This book opens by asking why ordinary Kubernetes networking falls short for enterprises and virtual machines, grounds you in OVN and OVS, then traces Kube-OVN's control and data planes through subnets, overlays and underlays, gateways, multi-tenant VPCs, security, traffic shaping, cross-cluster networking, hardware offload, KubeVirt, and running it all in production.

Contents

  1. 1Preface
  2. 2Chapter 1 — Why Kube-OVN
  3. 3Chapter 2 — OVN and Open vSwitch
  4. 4Chapter 3 — Architecture
  5. 5Chapter 4 — Subnets and IP Address Management
  6. 6Chapter 5 — Overlay and Underlay Networks
  7. 7Chapter 6 — Gateways, NAT, and Elastic IPs
  8. 8Chapter 7 — VPCs and Multi-Tenancy
  9. 9Chapter 8 — Network Policy, ACLs, and QoS
  10. 10Chapter 9 — Multi-Cluster, Performance, and KubeVirt
  11. 11Chapter 10 — Kube-OVN in Practice