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

[Jeroen Massar <[e-mail]>]

On 2014-11-14 22:18, Steven Blake wrote:
> 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.

There is little hash difference between:

HASH(src + dst)

and:

HASH(src + dst + random-number-chosen-by-dest-that-is-always-0)

Thus please, where is this Flow Label useful for?

Greets,
 Jeroen