With the growing number of vendors supporting Flow based technologies, we’re seeing a rise in use cases and possibilities for flow analysis and performance monitoring. Even though there has been exponential growth in flow reporting over the last few years, we in the industry are always left with questions, what are we missing? Where can we gather more information? Are we really getting 100% visibility into our network traffic? The answer here is simple, there’s always room to grow!
One area in which flow exports have been missing, is in our virtual environments. We know we can capture our traffic on our physical hardware. When an end user reaches across the internet to load content from a webpage, we can meter this traffic at each hop. We see the traffic as it hits the switch, router and then the firewall. This is all incredibly valuable information, but what about our Virtual Machines? Currently, getting visibility into the communications that never leave our virtual environments is limited. Fortunately, companies are starting to close that gap! VMWare, for example, now has support for exporting IPFIX elements from a Virtual Distributed Switch. This is a huge advancement! Let’s take a look at what their exports have to offer.
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