Dell OpenManage Network Manager Client Manual page 302

Enable NetFlow on most impacted routers that support NetFlow. Also, register a number of
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exporters to enable an efficient and scalable data collection environment.
NOTE:
You can disable NetFlow and unregister exporters.
After NetFlow has been running for a while, verify that bandwidth utilization is within
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expectation. This will help insure optimum performance of critical business applications.
Select the Top 5 Applications portlet (or add it to the page).
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From the list of the Top 5 Applications, you'll typically see most bandwidth is being
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consumed by the key applications in our organization.
Alternative 1
To ensure bandwidth is not being hijacked by unauthorized or unwanted video or music
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streaming applications, select the Top 5 Conversations.
Often the top conversation is video streaming software.
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To answer "Where and who is running this rogue application?," drill down into the
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conversation to see End points involved in the conversation. This identifies the user running
the streaming application. You could now go and stop (or block) this rogue application.
Alternative 2
An alarm indicates port X is surpassing its threshold. If the port has become a bottleneck in the
overall network bandwidth, we want to identify what applications are at cause, and who is
responsible for running them.
Look in the Top 5 Traffic Flow Endpoints portlet.
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From the list of the Top 5 Endpoints, you will typically see that port X is high on the list.
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Expand the portlet and drill down into the port X endpoint to see what are the top
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conversations going through port X.
Drill down into conversations to identify any unauthorized applications.
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Drill down further to identify users of any unauthorized applications
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Now, go stop them!
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Traffic Flow Analyzer - Example | Traffic Flow Analyzer