Configuring the Active Flow Export Timer

The active flow export timer, also referred to as the export interval, sets the maximum amount of time an active flow will be allowed to continue before expiration for this system. Should the active timer expire and the flow terminate, the underlying flow continues as a separate flow. It is the responsibility of the management application to recognize the multiple flows as a single logical flow for analysis and reporting purposes. The active flow export timer defaults to 30 minutes.

Note

Some NetFlow management applications expect to see export packets prior to some set interval that is often as low as 1 minute. Check the documentation for your management application and make sure that the export interval is configured for a value that does not exceed that value.

Use the set netflow export-interval command to change the active flow export timer value for each system.

Use the clear netflow export-interval command to reset the active flow export timer to its default value.