Configure Metric Filtering

Metric filtering reduces the storage footprint of collected performance data by limiting the metrics collected from a metric family for a particular monitoring profile. For devices in associated collections,
DX NetOps Performance Management
loads only the selected metrics.
HID_Metric_Filtering
Metric filtering reduces the storage footprint of collected performance data by limiting the metrics
DX NetOps Performance Management
collects from a metric family for a particular monitoring profile. For devices in associated collections, only the selected metrics are loaded.
You can apply metric filtering only to custom monitoring profiles (monitoring profiles that do not have lock icons).
Metric filtering does not reduce SNMP traffic.
DX NetOps Performance Management
still polls filtered metrics. Metric filtering applies only to metrics that
DX NetOps Performance Management
collects through SNMP.
You can filter metrics while managing dashboards or configuring event rules for thresholds. Consider dashboard and threshold requirements before metric filtering.
The following example helps to describe the behavior for multiple monitoring profiles.
Example:
  • One monitoring profile (A) has no metric filtering.
  • Another monitoring profile (B) has some metric filtering to collect only BitsIn, BitsOut.
  • Each monitoring profile is associated with a different collection.
Result:
If a device ends up in both collections, the configuration from (B) takes priority. The system only collects BitsIn, BitsOut.
If a device is associated with multiple monitoring profiles,
DX NetOps Performance Management
collects and saves all selected metrics from all monitoring profiles for the device at the fastest rate among all monitoring profiles.
Storage savings are not linear.
For more information about how to estimate the storage savings, see Configure Data Retention Rates.
Follow these steps:
  1. Hover over
    Administration
    , and then click
    Monitored Items Management: Monitoring Profiles
    .
  2. Select the monitoring profile, and then click the
    Metric Families
    tab.
  3. Select the metric family, and then click
    Edit Collected Metrics
    .
  4. Move the metrics that you want to collect to the
    Selected
    pane.
    By default, all metrics are selected. To pick a limited set of metrics, select all metrics, and move the metrics to the
    Available
    pane. Then move the metrics to collect to the
    Selected
    pane.
  5. Click
    Save
    .
    DX NetOps Performance Management
    loads only the selected metrics to the data repository for devices in collections associated with the monitoring profile.
    If the collection is associated with another monitoring profile that includes the same metric family, or if the devices are in another collection associated with a monitoring profile with the same metric family,
    DX NetOps Performance Management
    still collects the metrics.
To view the metrics that
DX NetOps Performance Management
collects for a particular device, go to the device administration page, click the
Metrics
tab, and select a metric family. A column in the right pane indicates where
DX NetOps Performance Management
collects the metric.
The
Metrics
tab represents consolidated information across all monitoring profiles associated with all collections to which the device belongs. If you see a metric that you do not want to collect, view the metric families associated with each monitoring profile for each collection.
For more information about the
Metrics
tab, see the Manage Metric Families.