When multiple monitoring profiles are assigned to a device collection, the filter matching criteria follows the "or" rule. So, Data Aggregator monitors all interfaces that satisfy the criteria for any of the monitoring profiles in the group.
Some of the monitoring profiles may have filters and some may not. Plus, these profiles can specify differing poll rates. In this case, Data Aggregator monitors the interfaces that match any monitoring profile, but the polling rates can differ. If more than one monitoring profile applies to an interface, Data Aggregator polls the interface once, and polls it at the fastest polling rate:
In this example, interfaces that match Monitoring Profile 1 are polled every minute. All other interfaces are polled every 5 minutes. Interfaces that match Monitoring Profile 3 also match Monitoring Profile 2, which does not include a filter. The fastest poll rate applies, so no interfaces are polled at 10-minute intervals.
In this case, if one monitoring profile has no filter, the result is that many interfaces may be polled more frequently than necessary. Therefore, after you set a filter, remove associations from other monitoring profiles to make sure that only components matching the specified filter are monitored.
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