[Bug 268490] [igb] [lagg] [vlan]: Intel i210 performance severely degraded

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 14 Apr 2023 22:30:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268490

--- Comment #46 from Daniel Duerr <duerrd561@gmail.com> ---
(In reply to Santiago Martinez from comment #43)

Hi Santiago,

Both 172.27.6.129 and 172.27.6.135 are on the same MTU 9000 storage subnet. I
was careful to ensure this for my testing. All of my iperf tests, both failures
and successes, have been between these 2 IPs on a properly configured MTU 9000
vlan which only has hosts on it using MTU 9000.

Also, and FWIW, this storage subnet was configured to MTU 9000 long before this
issue ever started occurring. It is a mature, known-good, config.

Best,
Daniel

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