netdev - Re: Need a special way tune TCP IPv6->IPv4 fallback timeout

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Message-ID: <20110324102401.682f0e1e@nehalam>
Date:	Thu, 24 Mar 2011 10:24:01 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Guillaume Leclanche <guillaume@...lanche.net>
Cc:	netdev@...r.kernel.org
Subject: Re: Need a special way tune TCP IPv6->IPv4 fallback timeout

On Thu, 24 Mar 2011 18:05:35 +0100
Guillaume Leclanche <guillaume@...lanche.net> wrote:

> 2011/3/24 Stephen Hemminger <shemminger@...tta.com>:
> > The best way is to try both at the same time. This trick is known
> > as "Happy Eyeballs"
> >
> >  http://tools.ietf.org/html/draft-wing-v6ops-happy-eyeballs-ipv6-01
> 
> Happy eyeballs implementation would be royal, I thought my proposal
> would be easier to implement as a first step. I'm very likely to be
> wrong though :) Well, if anybody is working currently on Happy
> Eyeballs implementations in the TCP stack, it's great !

It is best handled in client. Not in the stack itself because
only client has DNS records to work with.
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