Abstract: A network connectable device that is configured to send to a service-state monitor via a network connection service-monitoring protocol information that defines at least one operational parameter for a service-monitoring protocol that comprises sending to the service-state monitor a plurality of service-state messages that each indicate a service-state of the network connectable device when so sent. The network connectable device is configured to send to the service-state monitor via the network connection the plurality of service-state messages.