From: Florian Weimer <fw@deneb.enyo.de>
To: linux-kernel@vger.kernel.org
Subject: Re: NetFlow export
Date: Thu, 13 Mar 2003 14:46:04 +0100 [thread overview]
Message-ID: <87llzj8jmr.fsf@deneb.enyo.de> (raw)
In-Reply-To: <20030313122932.GB29730@unthought.net> (Jakob Oestergaard's message of "Thu, 13 Mar 2003 13:29:33 +0100")
Jakob Oestergaard <jakob@unthought.net> writes:
> You asked for netflow data export. Netramet can give you something
> similar to netflow (I never used netflow, but from what I hear, netramet
> is similar only more flexible).
I need the NetFlow data format, not something else.
> With 10 lines of Perl you could do full ASN-1 ;)
NetFlow is not based on ASN.1. It's a completely different format (an
industry standard which is implemented by quite a few vendors).
> Point being; if what you want is flow information from a Linux router,
> excellent user space software (both "meter" and retrieval/filtering
> tools) already exist for that.
I fear the performance impact of copying all packet headers to user
space.
> If you want something else, then I have completely misread your mails.
> Please elaborate, in that case :)
I'd like to see something which has virtually no impact on forwarding,
so that it's a no-brainer to enable it. I doubt copying all the
packet headers to user space falls into this category.
next prev parent reply other threads:[~2003-03-13 13:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-13 11:07 NetFlow export Florian Weimer
2003-03-13 11:48 ` Jakob Oestergaard
2003-03-13 11:57 ` Florian Weimer
2003-03-13 12:29 ` Jakob Oestergaard
2003-03-13 13:46 ` Florian Weimer [this message]
2003-03-13 16:45 ` Jakob Oestergaard
2003-03-14 9:32 ` David Luyer
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