In my last post, I maybe implied that the capture
file showed the TCP window scaling was disabled,
on the OpenSolaris client.

To be clear, TCP windows scaling is enabled on
the OpenSolaris client, it is just that it is 
advertising a scale factor of zero.

As a scale factor of zero means multiple the
window size by 1, it does not actually change 
the size!  But it does allow the other side,
in this case the Linux server, to use window
scaling.

If anyone else wants to look at the captures,
here are the links:

http://www.nwsmith.net/solaris/osol.iperf.cap
http://www.nwsmith.net/solaris/linux.iperf.cap

Thanks
Nigel Smith
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