Thanks guys for the replies.
Just for clarification on the list, it definitely *does* have an effect.
When we had 1:1 our file sizes were 300MB every couple of mins. 1:500
dropped that to 30M files. Also we're doing the sampling commands on the
interfaces (ie ; family inet, sampling input/output). This isn't in-line
unless I've misunderstood something.
Before we put in the MS-MPC, it was RE sampling version 5. This worked
fine.
Switched to MS-MPC (the new replacement for MS-DPC) and version 9
templates. The nfdump stats are way way under - they're not usable.
It's actually replicated from an upstream device (NTA) to the nfdump box.
The mx sends it to NTA, which replays it to nfdump. The NTA box shows the
sample/stats of netflow fine.
I'm going to try sampling instances, but I was under the impression that
wasn't required.
On Thu, Jul 9, 2015 at 2:07 PM, Scott Granados <sc...@granados-llc.net>
wrote:
> I hadn’t experienced the same thing but I was definitely using inline
> sampling. I’ll look up the article when I get stationary that pointed me
> in that direction. You well could be right though so now I’m wondering
> about it.
>
> > On Jul 9, 2015, at 3:05 PM, sth...@nethelp.no wrote:
> >
> >> Also note that the sampling rate you are playing with has no effect
> really. Sampling with inline Flow is done at a 1:1 rate. The sample rate
> I believe just sets the scaling factor. On all the installations I�$,1ryve
> done I�$,1ryve set the rate to 1 as well with out negative impact to
> processing.
> >
> > As far as I can see, the sampling rate has a definite effect on the
> > amount of netflow traffic towards the collector. YMMV.
> >
> > Steinar Haug, AS 2116
>
>
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