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Hi Matias,

Matias Banchoff wrote:
> Hello,
>   I have a doubt about the way nfsen calculates statistics when flags -n 
> and -c are given.
> 
>   If I write:
> -----------------------------------------------------------------------------------------------------
>  
> 
> nfdump -R /mydata  -q -a  -A srcip,dstip "net mynet/mymask" -n 1000 -c 
> 100000 -o "fmt:%sa %da %byt"
> -----------------------------------------------------------------------------------------------------
>   the -n 1000 flag is used to show the top 1000 flows that will be shown 
> in the resulting list and the -c 100000 flag refers to the amount of 
> flows used to work (make the calculations).
>   My doubt is the following: Where are the 100000 flows given in the -c 
> flag taken from?
> A) 100000 flows per each flow archive (In /mydata I have flow files with 
> the form yearmonthdayhour). In this case, if I have n archives, I would 
> have the calculations made based on 100000*n flows, which is good for me.
> B) Merging (somehow) the n file flows in the /mydata directory and 
> taking the first 100000 flows from that merge.
> 

- -c <cnt> takes flows from whatever input source, in the order given and stops 
reading after <cnt> flows are processed.
Flows are read sequentially when giving multiple files. Assume multiple files 
as one big virtual file.

- -n <num> calculate the statistics from all the flows, after reading is 
completed, either by end of file or -c <cnt>

        - Peter

> Thank you!
> 
> 
> ------------------------------------------------------------------------------
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Group, R/GA, & Big Spaceship. http://www.creativitycat.com 
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