What is CNI (Container Network Interface)?
A standard interface for Kubernetes networking plugins. CNI plugins (Flannel, Calico, Cilium) handle pod-to-pod networking, IP address management, and network policies.
Related tool
K8s Cluster Cost
Calculate the monthly cost of running a self-managed Kubernetes cluster on Hetzner Cloud, Vultr, or DigitalOcean. Choose server types for control planes, workers, and load balancers with HA mode.
Related Calculators
Cilium Resources
Calculate Cilium CNI agent RAM and CPU requirements per node. Includes Hubble observability overhead, WireGuard encryption, and BPF map memory for network policies.
K8s Bandwidth
Estimate internal pod-to-pod bandwidth, external egress, and recommended NIC size for your Kubernetes cluster. Accounts for service mesh overhead and Hetzner egress pricing.
Mesh Overhead
Calculate the RAM, CPU, and latency overhead of running Istio, Linkerd, or Cilium as a service mesh. Compare sidecar vs eBPF approaches per pod and cluster-wide.