Looping in the author of that change ...
On 01/10/2012 02:24, Dennis Koegel wrote:
> Cheers,
>
> problem: Having a *lot* of IPv6 interfaces (Vlan interfaces in this case)
> causes a huge and annoying delay time at system boot in 9.0R.
>
> ipv6_up() in network.subr does this:
>
> + # wait for DAD
> + sleep `${SYSCTL_N} net.inet6.ip6.dad_count`
> + sleep 1
>
> This happens for each and every interface, at a minimum (and default) of
> two seconds per interface.
>
> It seems the behaviour was introduced with r197139. Before this merge,
> /etc/rc.d/network_ipv6 did the same sleeps, but only once for the whole
> network startup.
>
> I don't see why this should happen per interface, so I suggest the extra
> sleeps are limited to "once per network startup" once again (or maybe
> removed?).
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