[Bug 258732] [tcp] TCP_MAXSEG does not work

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=258732

Arthur Kiyanovski <akiyano@amazon.com> changed:

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--- Comment #12 from Arthur Kiyanovski <akiyano@amazon.com> ---
(In reply to Michael Tuexen from comment #5)

Just adding a usage example:

A popular way to sanity test network performance is the iperf tool.
With this tool, the way to control the size of packets sent is with the -M
parameter, which according to the documentation:

-M, --mss n
              set TCP maximum segment size using TCP_MAXSEG

For example, to get a quick look at pps, what one may like to do is to set the
-M parameter to some small number and run the BW test. This gives a good feel
for pps.

There may be other ways to achieve this, but this is the popular quick and
dirty one I know.

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