tap on lagg ?

Ruben mail at osfux.nl
Tue Feb 7 08:45:34 UTC 2017

Hi Dustin,

On 07/02/17 03:52, Dustin Marquess wrote:
> On Mon, Feb 6, 2017 at 4:14 PM, Ruben <mail at osfux.nl> wrote:
>> Hi Vincent,
>>> BTW, I found this a couple of weeks ago and it has just been updated: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=157182 <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=157182>
>>>> Le 6 févr. 2017 à 11:11, Vincent Olivier <vincent at up4.com> a écrit :
>>>> Hi,
>>>> Has anyone succeeded in having a bhyve VM tap interface on an aggregate interface (lagg)? From what I have read until now, it seems to be a known problem, and my experience shows that it is still an issue with FreeBSD 11, so I would like to know if it is because tap/bridging a lagg is not a reasonable thing to do anyway…
>>>> Regards,
>>>> Vincent
>> I have multiple machines on which 2 or more nics make up a LACP lagg
>> with vlans on it. Those vlan interfaces are in bridges together with the
>> tap interfaces that are in use by bhyve vms.
>> Works as long as I "up" the nics in a specific fasion ( " -tso4 -lro
>> -vlanhwtag " ) . This works on 10.3 and 11.0 as far as I'm aware and I
>> have never experienced problems with it (Intel / AMD / em driver / bce
>> driver, re driver , all kinds of combinations).
>> I have no experience in comparable setups without the vlan "layer" though.
> I've gotten it to work both with and without vlan just by using
> -vlanhwtag.  Leaving lro & tso4 enabled works fine. 
Interesting Dustin, I will try re-enabling those features in the months
to come.
> -Dustin
Kind regards,


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