I have 7 6500 series running in hybrid mode.
I am currently evaluating a commercial netflow analyser but with the current eco climate I wondered whether anyone had experience of a free or open source alternative ?
I have tried a couple but they dont seem to collect all the data I think I should get.
The catos on my 6500s are older and disparate versions and I dont seem able to coerce them into exporting version 5 flows some of them seem to only want to do version 7.
I have looked at scrutiniser aswell which will only retain data for 24 hours, in addition there is the quandry of using a free version of a commercial software which isnt really on for me as I work for a uk government agency.