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[v6ops] Flow label setting [WG Doc? draft-gont-v6ops-ipv6-ehs-packet-drops]

Brian E Carpenter <brian.e.carpenter@gmail.com> Mon, 14 March 2016 20:30 UTC

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To: Tom Herbert <tom@herbertland.com>, Nick Hilliard <nick@foobar.org>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Tue, 15 Mar 2016 09:29:52 +1300
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Subject: [v6ops] Flow label setting [WG Doc? draft-gont-v6ops-ipv6-ehs-packet-drops]
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On 15/03/2016 07:12, Tom Herbert wrote:
...
> iOS already sends non-zero IPv6 flow labels, we have changed Linux
> default to use IPv6 flow label so once Android rebases the kernel the
> majority of IPv6 end hosts should be sending non-zero flow labels. It
> is far easier and shorter time to change the software stacks to send
> them than upgrading all the HW in the paths to use them productively.

True, and upgrading the client stacks will break the chicken/egg
blockage in this case.

You don't mention Windows, which is still quite present in the market,
and for full impact servers need to be setting the flow label too.

Also, what algorithms are the various stacks using? It isn't just a matter
of setting any old non-zero value.

   Brian

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