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docs(platform-package): note the /21 the kube-ovn variants keep for cilium #739

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Aleksei Sviridkin (lexfrei) merged 1 commit into from
Oct 8, 2026
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docs(platform-package): note the /21 the kube-ovn variants keep for cilium #739

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2 changes: 1 addition & 1 deletion content/en/docs/next/operations/configuration/platform-package.md
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Expand Up @@ -94,7 +94,7 @@ spec:
| Value | Default | Description |
| --- | --- | --- |
| `networking.clusterDomain` | `"cozy.local"` | Internal cluster domain name. |
| `networking.podCIDR` | `"10.244.0.0/16"` | The pod subnet used by Pods to assign IPs. Used by Kube-OVN only: ignored on `isp-hosted` and the slim variants. |
| `networking.podCIDR` | `"10.244.0.0/16"` | The pod subnet used by Pods to assign IPs. Used by Kube-OVN only: ignored on `isp-hosted` and the slim variants. On the Kube-OVN variants its last /21 is reserved for the router and Gateway API Ingress addresses of Cilium and Kube-OVN does not hand it out, so it needs a prefix of /20 or shorter. Each node takes a /29 of that /21, which caps these variants at 256 nodes. |
| `networking.podGateway` | `"10.244.0.1"` | The gateway address for the pod subnet. Kube-OVN only. |
| `networking.serviceCIDR` | `"10.96.0.0/16"` | The service subnet used by Services to assign IPs. Kube-OVN only. |
| `networking.joinCIDR` | `"100.64.0.0/16"` | The `join` subnet for network communication between the Node and Pod. Follow the [kube-ovn] documentation to learn more. Kube-OVN only. |
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