+You can add nodes that use the new CIDR block immediately after you add it. However, because the control plane recognizes the new CIDR block only after the reconciliation is complete, it can take a cluster up to one hour for a CIDR block that you associated with a VPC to be recognized. Then you can run the `kubectl cp`, `kubectl exec`, `kubectl logs`, and `kubectl port-forward` commands (these commands use the `kubelet API`) for nodes and pods in the new CIDR block. Also, if you have Pods that operate as a webhook backend, then you must wait for the control plane reconciliation to complete.
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