|   | 
  | 
1   | 
 Open the NSP Flow Collector web UI. The Collection Policy page is displayed. 
  | 
2   | 
 Click on the Aggregation Policy tab. 
  | 
3   | 
 Perform one of the following: 
- 
If the NSP Flow Collector is to collect system Cflowd statistics, select the required aggregation types from the tabs in the lower panel.  
- 
If the NSP Flow Collector is to collect AA statistics, select one or more statistics classes in the Subscriber Collection panel to enable aggregation for the classes.   
  | 
4   | 
 Use the Interval drop-down menus in the Aggregation Intervals panel to specify the aggregation interval for each statistic type, as required. 
Note: The statistics collection interval affects NSP Flow Collector performance. A larger interval results in proportionally larger files, which take longer to store and transfer. 
Note: For BB NAT statistics, you must set the collection interval no higher than the following, based on the expected flow rate: 
  | 
5   | 
 The Interval Closing Timeout parameter specifies a latency value that is applied at the end of a collection interval to ensure that any queued statistics are written to the current file. Typically, the default value of one second is adequate; configure the parameter only at the request of technical support. 
  | 
6   | 
 Specify the aggregations for each statistic type, as required. 
- 
Click on the tab in the lower panel that corresponds to the statistic type.  
- 
Select or deselect aggregations, as required.   
  | 
7   | 
 Click Save Configuration. The configuration is saved. 
End of steps  |