Configuring SteelHead for Flow Data Export

This section explains how to configure the SteelHead for flow data export.

To enable flow data export on the SteelHead

1.	On the SteelHead, choose Networking > Network Services: Flow Statistics.

2.	Select Enable Flow Export.

3.	Clear Enable Top Talkers.

Riverbed recommends that you disable top talkers unless you have it enabled for reporting on the SteelHead. Enabling top talkers forces the active flow time-out to 30 seconds. This time-put results in flow updates being sent to the collector twice per minute. While Riverbed recommends a time-out of 60 seconds in most cases, there are no issues with sending updates more frequently. The collector correctly collates the incoming information and sends a single, complete, update to the NetProfiler once per minute.

4.	Specify 60 seconds in the Active Flow Timeout field.

5.	Specify 15 seconds in the Inactive Flow Timeout field.

6.	Click Apply.

7.	Click Save to save your changes permanently.

Figure 5‑3. Flow Export Page

To configure the Flow Collector and Exporting interfaces

1.	On the Flow Export page, select the Add a New Flow Collector tab.

2.	Specify the IP address and listening UDP port number of the NetExpress or the Flow Gateway.

3.	Select the version of flow data to be exported:

For the NetProfiler v8.4 and later, use SteelFlow Net.

For the NetProfiler v8.3.2, select SteelFlow Net compatible and select the LAN Address check box.

4.	For the desired interfaces, select All to export both optimized and nonoptimized flow information.

5.	Click Add to add the NetExpress or Flow Gateway to the collector list.

6.	Click Save to save your changes permanently.

Figure 5‑4. Flow Collector and Exporting Interfaces

When you click Apply and Add, the Management Console updates the running configuration. Your changes are written to disk only when you save your configuration.