NNMi9 (and iSPI for Metrics) allows threshold alerting on node components (or interface stats), however this needs to be set up at interface or node level within the monitoring configuration menus.
Example 1: Enabling CPU Threshold Alerting
Configuration > Monitoring Configuration
Edit Routers (or another monitoring group, which refers to the node group you want) and in the Threshold Settings Tab, Add a new count based threshold setting.
Select CPU 5Min Utilization and set thresholds as desired. It’s best to disable the low value completely by setting Low Value and Low Value Rearm to 0 as we’re only concerned with a high value. You may want to set the High Trigger Count to 2 or more rather than 1, considering the fact that config writes and other normal activity can cause CPU spikes.
Now Save and Close down to the Monitoring Configuration menu, then either Save or Save and Close from there.
Example 2: Interface Error Thresholds with iSPI for Metrics
Configuration > Monitoring Configuration > Interface Settings
Edit the desired interface configuration:
Add a new Count based Threshold, Select Input Error Rate and set as follows to alert for any amount of errors on any given poll.
Save & Close to Monitoring Configuration, then Save again. Repeat this for Output Error rate then save and close from the Monitoring Configuration menu.
To verify Interface Error threshold monitoring is working, you can go to Monitoring > Interface Performance like so:
Now you get alerts like the following in the alarm browser!