What is aggregation?

Aggregation

Aggregation is the practice of combining measurements for analysis. In the NSP, telemetry data is aggregated based on time period of collection: hourly, daily, weekly, or monthly. When a report is run in Analytics, the granularity parameter in the report determines which aggregated data set is analyzed. For example, if you select hourly granularity, the report shows the hourly aggregated data. Some reports can use raw data, that is, data that is not aggregated, but this is not available for all reports.

What is an aggregation rule?

An aggregation rule defines how the data for a specified telemetry type is aggregated and how long each aggregated data set is retained.

Aggregation rules for model-driven telemetry are configured on the NSP server. They can be viewed and edited in NSP.

For aggregation information to be available, the auxiliary database must be configured and running.

Use the NFM-P to configure aggregation rules for data collected by the NFM-P; see the NSP Analytics Report Catalog.

What is the aggregation time zone?

The aggregation time zone is the time zone that is used to determine the start and end time of data to be aggregated:

• hourly aggregation: from xx:00 to xy:00

• daily aggregation: from midnight to midnight

• weekly aggregation: from midnight Monday to midnight Monday

• monthly: from midnight on the 1st of the month until midnight on the first of the following month