Pod CIDR Expansion Generally Available and IP Address Planning on Azure CNI Overlay (opens in new tab)

In networking with Azure CNI Overlay, the cluster-wide pod CIDR is logically partitioned into smaller “node” blocks where each node is assigned a fixed CIDR slice (/24) by Azure. This decouples pod networking from the VNet address space entirely because pods receive addresses from a private CIDR that is separate from the VNet. By default, Azure CNI Overlay uses a pod CIDR of 10.244.0.0/16 which provides 65,536 addresses. Since each node consumes 256 addresses from the /24 slice, the default c...