Re: Hash function comparisons for flow label generation

Brian E Carpenter <brian.e.carpenter@gmail.com> Tue, 13 March 2012 00:44 UTC

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Date: Tue, 13 Mar 2012 13:44:51 +1300
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: 6man <ipv6@ietf.org>
Subject: Re: Hash function comparisons for flow label generation
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The official handle for this is http://hdl.handle.net/2292/13240

   Brian

On 2012-03-07 15:09, Brian E Carpenter wrote:
> Hi 6man,
> 
> I've just filed a technical report on some work we've done on actual
> performance of certain non-cryptographic hash functions, when used to
> generate flow labels for real-world IPv6 traffic traces from four
> different sites.
> 
> It will get an official library handle soon, but here is an ad hoc
> URL to be going on with:
> 
> http://www.cs.auckland.ac.nz/~brian/flowhashRep.pdf
> 
> If you don't want to read it, here's the conclusion: the
> FNV1a-32 algorithm, with the result XOR-folded to 20 bits,
> works very well for this purpose.
>