Flow Collection in Virtual Environments
The vSphere v5 distributed vSwitch and the Cisco Nexus 1000V support flow export in a virtual environment. Either solution provides visibility into the virtualized environment, including:
• intrahost virtual machine traffic (virtual machine-to-virtual machine traffic on the same host)
• interhost virtual machine traffic (virtual machine-to-virtual machine traffic on different hosts)
• virtual machine-physical infrastructure traffic
Note: In VMware ESXi 5.5 and earlier, only the distributed vSwitch supports the export of NetFlow data.