Michael Patterson : Advanced NetFlow Traffic Analysis
Michael Patterson
Founder and Product manager for Plixer's Scrutinizer NetFlow and sFlow Analyzer as well as Flow Analytics.

May 2013

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Router Overhead When Enabling NetFlow

May 1, 2013

Are you concerned about the router overhead when enabling NetFlow?  You should be if the router already has a busy CPU.  Make sure you trend the CPU utilization on a busy router before you try enabling NetFlow or IPFIX.  In most cases enabling these network traffic monitoring exports won’t impact performance however, they could however on an already over worked appliance. 

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