Re: can't bridge an I/F with jumbo to taps, deleted bridge 'flags' are sticky if you remake them

From: Patrick M. Hausen <>
Date: Thu, 13 Jan 2022 08:15:34 UTC
Hi all,

> Am 13.01.2022 um 06:41 schrieb George Michaelson <>:
> I just found a couple of odd quirks in bridge
> 1) you can't bridge an MTU 9000 interface to taps. If you dial it back
> to 1500 it works fine. I might have missed this being a limit in the
> man
> 2) when you delete a bridge, and re-create it, some of the addm
> "history" can come live. faulty debug suggests some state in the
> kernel/network space isn't wiped clean. Maybe this is a good thing,
> the most likely outcome is you wanted much the same but.... POLA
> FreeBSD 12-2-RELEASE-p6 (if this is fixed in newer FreeBSD)

Are you in a position to test FreeBSD 13? The bridge code has been
more or less completely rewritten.

Kind regards,
-- GmbH
Patrick M. Hausen

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