tap on lagg ?

Ruben mail at osfux.nl
Mon Feb 6 22:23:33 UTC 2017

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.

What seems to be your predicament?



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