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You can contact the NPM team at EPCC at npm@epcc.ed.ac.uk.

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The following alarms are currently supported:

Route Change: If the route changes, raise an alarm.
Routing Out of Network: If the route changes, and it includes a hop not in the user-defined list, raise an alarm.
Interface Errors: If a router interface has input errors above a threshold, raise an alarm.
Interface Congestion: If a router interface has output drops above a threshold, and the router utilisation is below a second threshold, raise an alarm. The check on utilisation can remove alarms caused by output drops which are expected when the utilisation is high.

All thresholds are user definable in the alarm rules configuration. See the installation guide for more details.

The following sources of data are used as the basis of the alarms:

Route Change: Traceroute, as analysed by HADES.
Routing Out of Network: As route change, plus the traceroute hop list supplied by HADES.
Interface Errors: Router interface input errors supplied by the perfSONAR RRD MA
Interface Congestion: Router output packet drops and utilisation supplied by the perfSONAR RRD MA