2.3.5.2 Flannel Network

The Platform CLI configures a flannel network as the network fabric used for communications between Kubernetes pods. This overlay network uses VxLANs to facilitate network connectivity. For more information on flannel, see the upstream documentation at:

https://github.com/coreos/flannel

By default, the Platform CLI creates a network in the 10.244.0.0/16 range to host this network. The Platform CLI provides an option to set the network range to an alternate range, if required, during installation. Systems in an Oracle Linux Cloud Native Environment deployment must not have any network devices configured for this reserved IP range.