I have just created a web page that shows ping-based monitoring of an LLN mote using the Kaji network monitoring tool. Kaji is a repackaging of the Python-based Shinken monitoring tool with the Adagios web UI. So far, my work mostly has been straightforward installation and configuration.
I plan to press on with more LLN monitoring. The next step is to implement passive checks, where the mote notifies the monitoring tool. I plan to leverage the CoAP support already in OpenWSN to implement these checks, starting wtih wireless signal strength link measurements.