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How to calculate bandwidth requirments based upon flows per minute (fpm)?

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I want to know how can one calculate bandwidth requirements based upon flows and viceversa.

Meaning if I had to achieve total of 50,000 netflows what is the bandwidth requirement to produce this number? Is there a formula for this. I'm using this to size up flow analyzer appliance. If its license says supports 50,000 flows what does this means. How more bandwidth if i increase I would lose the license coverage?

Kindly help.

asked 25 Apr '13, 08:53

lazerz's gravatar image

lazerz
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accept rate: 0%


One Answer:

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You can use a netflow bandwidth calculator:

http://www.lancope.com/resource-center/netflow-bandwidth-calculator-stealthwatch-calculator/

Regarding your licensing question:

If its license says supports 50,000 flows what does this means

well, that depends on the vendor. I guess that license will only accept 50.000 flows per minute and drop every flow that exceeds that number, meaning you will not see the stats of every traffic in that case.

Regards
Kurt

answered 25 Apr '13, 09:03

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
24.8k1039237
accept rate: 15%