Date: Fri, 10 Jul 2015 11:06:27 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: Karl Pielorz <kpielorz_lst@tdx.co.uk> Cc: freebsd-net@freebsd.org Subject: Re: lagg of em0/em1 + VLAN = lower MTU? Message-ID: <20150710180627.GA8523@funkthat.com> In-Reply-To: <7CFE75F7566F5789DAD9FBB2@[10.12.30.106]> References: <7CFE75F7566F5789DAD9FBB2@[10.12.30.106]>
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Karl Pielorz wrote this message on Fri, Jul 10, 2015 at 14:04 +0100:
> This works fine. If I add a VLAN now to that, I end up with:
>
> "
> lagg0.10: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1496
> ...
> inet x.x.x.x
> ...
> vlan: 60 parent interface: lagg0
> "
>
>
> The MTU on lagg0.10 has shrunk by 4 (size of VLAN tag). Is there a way of
> avoiding that?
Try bumping the MTU on the root em's by 4 (1504) before creating the
lagg...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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