[c-nsp] Netflow/Sflow for "irrelevant" traffic?
Gert Doering
gert at greenie.muc.de
Thu Jul 30 08:38:23 EDT 2020
Hi,
On Thu, Jul 30, 2020 at 12:23:28PM +0000, Drew Weaver wrote:
> So just for a refresher if you are sampling lets say at 1:500 and lets say 1 byte goes through an interface that is not intended to produce an export?
It's statistics: 1:500 says "only look at one packet in 500" - so it
will just not *see* this "1 byte" (with a very high propability).
> The exporting only happens if the amount of data is over a certain threshold? Does that threshold vary?
Not "data over threshold" but "did you see the packet or not"
gert
--
"If was one thing all people took for granted, was conviction that if you
feed honest figures into a computer, honest figures come out. Never doubted
it myself till I met a computer with a sense of humor."
Robert A. Heinlein, The Moon is a Harsh Mistress
Gert Doering - Munich, Germany gert at greenie.muc.de
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