VMware vSphere: Virtualization Performance Analysis with NetFlow

Posted in VMware NetFlow on April 3rd, 2012 by Jimmy W
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Network Performance Analysis in a virtualized environment like VMware can be a tricky beast as often times everything is encapsulated using GRE tunnels between virtual switches.  What can we do? As luck would have it, most virtual switches support Netflow. Yes, vSphere NetFlow support is available. Read more »

Jimmy Wendler

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How to Enable NetFlow on a VMware ESX

Posted in NetFlow Analyzer, Network Traffic Analysis, Network Traffic Monitor, VMware NetFlow on October 3rd, 2011 by danny
how-to-enable-netflow-on-a-vmware-esx

In this blog I want to talk about enabling NetFlow on a VMware ESX. Netflow support has now been added to vSphere 5; by configuring your virtual switch to send NetFlow statistics to a netflow Analyzer you gain visibility into your virtual infrastructure. To be more specific, you will be able to monitor:

  • VM to VM traffic on the same host
  • VM to VM traffic on different hosts
  • VM to devices outside the virtual environment.
vSphere 5 supports NetFlow v5, and it can be easy to configure. Just follow these steps below and you can start reporting on your VMware ESX with a Network Traffic Analyzer.
vSphere 5 Netflow Configuration
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