[flow-tools] some datas are reported twice

Mark Fullmer maf@splintered.net
Thu, 16 May 2002 23:46:40 -0400


The way I handle this is to use flow-filter to remove data
that is received on a backbone interface.

mark

On Thu, May 16, 2002 at 04:14:05PM +0200, olivier.grosjean@bgl.lu wrote:
> Hello,
> 
> First, thanks for this usefull tool.
> 
> I am using Netflow tools 0.57 and  I get datas coming from our 4 core 
> backcone switchs.
> The problem is that some packets have to go through two core switches 
> and then are counted twice.
> Is there a fix for this ?
> 
> In the same order of idea, i'd like to collect datas from all our edge 
> devices but I fear the problem will be the same:
> Packets passing through two edge devices will report twice bytes.
> 
> Does some mechanism prevent this ?
> 
> Thanks in advance.
> 
> Olivier Grosjean
> 
> 
> 
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