NetFlow is a network analysis tool that you can use to watch network monitoring and virtual machine traffic.
About this task
NetFlow is available on a vSphere Distributed Switch version 5.0.0 and later. Version 5.1 and later of the switch supports IPFIX (NetFlow version 10).
- In the vSphere Web Client, navigate to the distributed switch.
- Right-click the distributed switch in the navigator and select .
- Type the IP address and Port of the NetFlow collector.
- Type the Switch IP address.
With an IP address to the vSphere distributed switch, the NetFlow collector can interact with the vSphere distributed switch as a single switch, rather than interacting with a separate, unrelated switch for each associated host.
- (Optional) Set the Active flow export timeout and Idle flow export timeout in seconds.
- (Optional) Set the Sampling Rate.
The sampling rate represents the number of packets that NetFlow drops after every collected packet. A sampling rate of x instructs NetFlow to drop packets in a collected packets:dropped packets ratio 1:x. If the rate is 0, NetFlow samples every packet, that is, collect one packet and drop none. If the rate is 1, NetFlow samples a packet and drops the next one, and so on.
- (Optional) Enable or disable Process internal flows only with the drop-down menu.
When enabled, only data on network activity between virtual machines on the same host is collected.
- Click OK.