[systemd-devel] network-online.target time

[Lennart Poettering]

On Mi, 06.05.20 15:50, Peter Morrow (Peter.Morrow at microsoft.com) wrote:

> On Wed, 2020-05-06 at 17:39 +0200, Lennart Poettering wrote:
> > On Mi, 22.04.20 14:44, Peter Morrow (
> > Peter.Morrow at microsoft.com
> > ) wrote:
> >
> > > Hi Folks,
> > >
> > > I'm trying to optimise our boot process and have started to look at
> > > the time it takes for the network to come up (a single interface to
> > > be
> > > routable) when using systemd-networkd:
> > >
> > > Can anyone offer any suggestions for where I should look to try to
> > > speed things up here?
> >
> > Turn on debug logging for networkd. it should tell you what it is
> > doing, and the timestamps should allow you to determine what
> > precisely
> > is being waited for.
>
> Thanks. Yes - I ended up doing this and it turned out much of the
> additional time is down to ipv6 interface configuration.  Specifically
> ipv6 link local duplicate address detection.

You can turn that off if you like: IPv6DuplicateAddressDetection=

Lennart

--
Lennart Poettering, Berlin