BLE mesh - Removing node from network

[Rob Johnson]

Is there a method to remove a node from the network using the current bt mesh stack? I've looked through device_state_manager.c but it appears to me that there are only functions that would be used to add information rather than removing one.

My use case needs a way to remove a node so it can be added to another network, or just reset to a default state so that it can be used in a different context.

[Hung Bui]

Hi Rob,

To remove a node from the network, there is a command from the configuration client called: CONFIG_OPCODE_NODE_RESET. Calling config_client_node_reset() will send that opcode.

Unfortunately we haven't implement that on the server side. If you have a look at handle_node_reset() in the configuration server, you can see the TODO.

What you need to do is to implement some command to erase configuration and provisioning data in the function.

Note that this is not the way to force the node to be out of the network. It's upto the server to accept that command or not. To be able to force a node out of the network, a "network key refresh" is needed. But this is not implemented in our stack yet.

[Rob Johnson]

Thank you. What about cleanup on the configuration client? I assume that the device key and some other information are stored in some sort way, is there a way to delete that data as well to free up memory?