You can add a physical flow collector and configure the switches to send sFlow and NetFlow records to the collector.

The collector VM that is used for NetFlow or sFlow is a dedicated collector, and it cannot be used for any other data source.
Note: For Cisco ASR/ISR (SD-WAN Assessment), If you have any existing data source in your environment, you need to add a separate collector. If you only have Cisco ASR/ISR (SD-WAN Assessment) data source then you do not need a separate collector. You can use the existing collector VM as a Physical Flow Collector for NetFlow and sFlow.
If any other data source is also added on the collector, it is not available as a Physical Flow Collector for sFlow and NetFlow.


  1. In the Settings page, click Accounts and Data Sources.
  2. Click Add Source.
  3. Under Flows, click Physical Flow Collector (Netflow, sFlow).
    sFlows are accepted only on the physical collector.
  4. Enter Nickname and Notes as required.
  5. Click Submit.


Note: vRealize Network Insight Cloud collects the packet samples for sFlow and so cannot show the complete metrics for the flows.

What to do next

Configure the switches to push the flows to the Physical Flow Collector.
  • Define the destination (Collector IP address that you added in vRealize Network Insight Cloud).
  • Set the port for the flow collector.
  • Assign poll interval.
Note: The procedure to configure depends on the switch that you want to configure. For more information, see the specific switch documentation.