Alarm Filters

The plugin only forwards alarms that match both a UEI filter and a node-category filter.

UEI filter

The following alarm UEIs are forwarded by default:

  • uei.opennms.org/nodes/nodeDown

  • uei.opennms.org/nodes/nodeUp

  • uei.opennms.org/nodes/interfaceDown

  • uei.opennms.org/nodes/interfaceUp

  • uei.opennms.org/nodes/nodeLostService (ICMP only)

  • uei.opennms.org/nodes/nodeRegainedService (ICMP only)

This list is hardcoded in AlarmForwarder and is not currently configurable at runtime.

Node category filter

Only alarms from nodes belonging to the configured category are forwarded. The category is set via the filter property in org.opennms.plugins.servicenow.cfg (default: Minnovo).

filter = Minnovo

Nodes must be assigned this category in their requisition or through the OpenNMS web UI for their alarms to be forwarded.

Asset category filters

Asset discovery uses separate category properties to identify each device type. Nodes must carry the corresponding category to be picked up by the AssetForwarder.

filter.accesspoint                = Wifi
filter.networkdevice.switch       = Switch
filter.networkdevice.firewall     = Firewall
filter.networkdevice.modem.lte    = LTE
filter.networkdevice.modem.xdsl   = XDSL

See Config Properties for the full list of configurable properties.