If you're using sampling you should see differences between netflow traffic
and real traffic. If not, check that:
1. you're not losing UDP packets - if you lose packets you should see
something like this:
Dec 4 09:35:00 localhost nfcapd[13268]: Ident: 'MyRouter' Flows: 11763,
Packets: 930064, Bytes: 731126982, Sequence Errors: 0, Bad Packets: 0
Sequence errors or bad packets will indicate something's wrong on the
network side.
2. your router has enough capacity (TCAM memory) to export all the flows
If you get errors in your router's log that TCAM memory is nearly
exhausted, then the router will stop producing flows for a while and you
get those drops at higher traffic.
On Thu, Dec 3, 2015 at 9:48 PM, Leandro <[email protected]> wrote:
> Hi , guys.
> It is very strange but , my nfsen is showing a maximun traffic value of
> 1.2 gbps when the traffic showed on cacti is 2gbps(also meassured on the
> router).
> Traffic shape is ok , minimun values mathes on both tools.
> Any ideas about it ? Is there something to tune on fprobe, nfcapd or
> nfsen ?
>
> Regards,
> Leandro.
>
>
>
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