The domain on which this event occurred.
The name of the event that was fired. This is commonly used to filter when using the ConvergenceEventEmitter.events stream.
Note that the name is only guaranteed to be unique within the class / subsystem that is firing it. Names might be reused across classes and subsystems.
Emitted when a ConvergenceDomain becomes disconnected AND is not attempting to reconnect. Essentially, the domain has given up trying to connect and reverted to offline mode.