Kube-OVN vs Nutanix Flow Virtual Networking

Kube-OVN combines OVN and Open vSwitch with Kubernetes for cloud-native network orchestration. Its documented features include subnet management, static IP allocation, gateways, hybrid underlay and overlay networks, VPC features, QoS, ACLs, and traffic mirroring. VPC networks provide tenants with separate address spaces and networking resources. The project recommends it for Kubernetes environments needing KubeVirt support or multi-tenant networking; KubeVirt virtual machines can live-migrate without network interruption. Documented integrations include Cilium, MetalLB, OpenStack, Submariner, and OVN interconnect. With Cilium chaining, Kube-OVN network abstractions can be used with Cilium eBPF monitoring and security capabilities. The project runs on x86_64 and arm64, and its documentation provides one-click installation scripts. It is free under Apache-2.0, deployed on-premises, and uses a centralized control plane. The project advises against it for OpenShift, public-cloud managed Kubernetes, and cases requiring an all-in-one CNI, ingress, service mesh, and observability stack.

Nutanix Flow Virtual Networking has no write-up on Specifiction yet; its figures are above.