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On loss of internet access for any length of period, the node will continue to work on the LAN side. The node keeps the network in the same state which means any possible leaf connections are kept.
On a single or multiple reboots of a node with no internet access, the node configures itself using a stored subset of teh the OVSDB config (provisoned provisioned by the SDN controller when the node was still connected). This config provides a limited set of functionalities. It sets up the default home LAN, so that the node continues to work on the LAN side:
Further use of the previously active bridge/router configuration
Home SSID & primary PSK (only a single zone and no other zones)
Existing static DHCP reservations and user-configured subnet
User-configured primary/secondary DNS servers
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