[Bug 221122] Attaching interface to a bridge stops all traffic on uplink NIC for few seconds

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221122

--- Comment #8 from Alexander Motin <mav at FreeBSD.org> ---
(In reply to Heinz N. Gies from comment #7)
Bridge+epair are the right tools, unless you wish to dedicate one NIC
completely to specific VNET Jail.

I've already told you how to workaround the problem:  when configuring uplink
interface, you can explicitly disable its capabilities that bridge try to
disable otherwise (TSO, LRO, TOE, TXCSUM, TXCSUM6).  In that case bridge should
be happy from the beginning and not modify capabilities any more.

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