Flow Monitor Settings

How to get here

Use this dialog to configure general settings for Flow Monitor.

Enter or select the appropriate information in the following fields.

General

Note: Individual sources may send flow information on a port that cannot be changed. In this case, you must configure the Listener to receive flow information on the port used by the non-configurable source and ensure that all other sources send their flow information the same port.

Note: If you change the listener port from the default, you may have to add an exception to the firewall if you are using the Windows Firewall.

Note: If you select the Get favorite icons option, Flow Monitor will make connections to a host in the domain to retrieve the favicon. This will impact the connections statistics for both the host and the domain.

Report Data

Important: For recommended settings based on your network's size and characteristics, see the WhatsUp Flow Monitor Performance Tuning Guide.

Note: Modifying collection interval settings affects the granularity you see in Flow Monitor reports. If the interval is set to 5 minutes, you cannot distinguish traffic collected during the first minute from traffic collected during the fourth minute.

Tip: Because public IP addresses are less likely to be changed, you may want to use longer intervals than used for the Resolve private address interval option.

Note: The collector will purge any unclassified data that has no activity after the Expire unclassified traffic after value is satisfied.

Data Cleanup

You can use the data cleanup section of the Flow Monitor Settings dialog to set data cleanup parameters for both flow data and interface data. Periodic roll-up and archival of flow data minimizes system resources needed for data storage.

Flow Data Cleanup Settings

Flow data includes many parameters (input and output interfaces, source and destination IP addresses, port numbers, byte rates, flow end times, etc.) which while useful in providing information, may quickly fill available storage. While rolling up the data makes for efficient storage, you may lose time related information about individual flows. The following parameters are used to control the cleanup of flow data.

Interface Data Cleanup Settings

Raw interface data is provided by the flow collector, or the collector can be configured to collect raw interface data directly from the network device when the collector is receiving sampled flow data. This raw interface data is used to represent total interface traffic for the period and to calculate 95th percentile values for the Interface Overview and Interface Usage reports. Because of the data compaction, interface data has a smaller impact on data storage, so it can be maintained for longer periods of time.

The following parameters are used to control the clean up of interface data.

Click OK to save changes.

Important: Any changes made to data roll up intervals are not enforced until the Flow Monitor collector service is restarted. For more information, see Stopping or restarting the collector.