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Subject: [Bug 174535] [tcp] TCP fast retransmit feature works strange
Date: Tue, 01 Dec 2015 08:45:17 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=174535

Hiren Panchasara <hiren@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |hiren@FreeBSD.org

--- Comment #2 from Hiren Panchasara <hiren@FreeBSD.org> ---
Unsure if you are still chasing this but I am a bit lost on what you are trying
to do. If you are trying to trigger fast-retransmit on 2 dupacks instead of 3,
easiest way is to change 'const int tcprexmtthresh = 3' in tcp_input.c

About tcpdump showing packet size > MSS, it usually happens with tso/lro.

(Also providing actual pcaps help in such situations.)

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