https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254036

--- Comment #7 from Mike Belanger <mibelan...@qnx.com> ---
I had captured some traces, but realized I made a mistake.
And in trying to recapture I discovered something that I found confusing.

My original testing was against a Linux PC with an on board NIC.
It failed consistently.
For capturing the traces, I used a QNX target and most pings were successful.
I don't believe there is a fundamental issue with the Linux PC as it will work
with other devices.

>From FreeBSD->QNX, the large pings worked a lot of the time and a trace of a
failure showed a missing fragment at the remote side.  (local = FreeBSD).

I have two other device that I have been using and one of them also seems to
show problems with larger UDP packets.
(axge):
Vendor                     : 0x0b95 (ASIX Elec. Corp.)
Product                    : 0x1790 (AX88179)

However, the following device seems to work fine (axe):
Vendor                     : 0x0b95 (ASIX Elec. Corp.)
Product                    : 0x7720 (AX88x72A)

(FYI...the original context of this issue is nfs failing)

I need to systematically capture more information and will present it more
clearly with traces.

Btw...unless I am mistaken, the send queue appears to be large enough, 
net.link.ifqmaxlen: 50

Regards.

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