sFlow vs netFlow/IPFIX

Avi Freedman freedman at freedman.net
Mon Feb 29 07:27:24 UTC 2016

Re: limits -

For Cisco/Juniper it's in the low hundreds of thousands of flows/sec
per chipset/linecard for 1:1 NetFlow/IPFIX, I think.

Then of course, as has been mentioned, you'll need to be able to send
it and receive it to something - and store+query.

Avi Freedman
CEO, Kentik

> On 28 February 2016 at 23:40, Nick Hilliard <nick at foobar.org> wrote:


> Around here they are currently voting on a law that will require unsampled
> 1:1 netflow on all data in an ISP network with more than 100 users. Then
> store that data for 1 year, so the police and other parties can request a
> copy (with a warrant but you are never allowed to tell anyone that they
> came for the data and the judges will never say no).
> My routers can apparently actually do 1:1 netflow and the documentation
> does not state any limits on that. So maybe I am lucky?
> To the original question: in this country sFlow only is apparently about to
> become illegal.
> Regards,
> Baldur

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