Optimizing NetFlow Processing Performance

NetFlow processing in large networks requires judicious approach to both sensor-side flow export and collector-side flow processing configuration. This section covers several configuration hints that may increase performance of the collector, i.e. Iotellect Network Manager instance used for flow processing.

Enabling this option forces host name resolution to be performed only during visualization of flow data. This reduces both network infrastructure load and collection server resource usage.

See Configuring DNS and NetBIOS Name Resolution for details.

Iotellect Network Manager provides diverse options for flexible configuration of flow collection. For example, you can configure which sensors and their individual network interfaces to collect data from.

See Configuring Device Accounts of NetFlow Sensors for details.

It's possible to manage percentages of dropped packets at each step of flow aggregation. This allows to reduce the overall amount of flow data stored in the database by discarding flows that don't match serious traffic volumes.

See Flow Data Aggregation for details.

In production systems where the volume of flow collection is significant, ensure that the system is configured to use an appropriate relational database.

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