A deployed SD-WAN Controller has default properties. Each property regulates the Controller, for example, the controller.listen.port property specifies the TCP interface for incoming connections to which CPE devices connect.
Properties have change methods that determine whether the value of an individual property can be changed and at which time the change takes effect. A property can have the following change methods:
A property value that is in the database, but has not yet taken effect is called a planning value. You can delete a planning value before restarting the SD-WAN Controller to keep the current value.
You can modify properties with the Reload and Runtime change methods, reset them to default values, and delete planning values.
If your SD-WAN Controller is deployed as a multi-node cluster, you must change properties while configuring the whole cluster. You cannot change the properties of an SD-WAN Controller while configuring one of its nodes.