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Re: draft-wang-6man-flow-label-reflection

Steven Blake <slblake@petri-meat.com> Fri, 14 November 2014 21:18 UTC

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Subject: Re: draft-wang-6man-flow-label-reflection
From: Steven Blake <slblake@petri-meat.com>
To: Jeroen Massar <jeroen@massar.ch>
Date: Fri, 14 Nov 2014 16:18:16 -0500
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On Fri, 2014-11-14 at 22:01 +0100, Jeroen Massar wrote:

> The primary use of the Flow Label seems to be Load Balancing, but load
> balancing does not work as doing that based on src/flow-label or just
> flow-label breaks ICMPv6 PTBs.
> 
> As such, the primary use case of Flow Labels is broken. Thus making that
> field useless.

Using address(es) + flow label as a load-balancing hash key is just as
(un)broken as using address(es) + port(s) with respect to ICMPv6 PTBs.
But it does have the virtue of being transport protocol-independent and
at a fixed header offset.


Regards,

// Steve

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