On Monday, 12/10/2001 at 11:49 GMT, Eric Lawler
<[EMAIL PROTECTED]> wrote:

> I must say the Linux VM ctc connection to OS/390 does not seem very
robust.
> We have no problem sending data from OS/390 to Linux at any matching MTU
> value eg 1492.
>
> Any further suggestions eg Linux buffers ?

The MTU sizes on both sides of the CTC connection must match.  Make both
sides 32768 or something.  (VTAM CTC connections have the same issues!  If
the buffer sizes don't match you get truncated PIUs...)  This is the nature
of the CTC hardware (virtual or real).

Regards,
Alan

Senior Software Engineer
z/VM, TCP/IP, VIF, and Linux for zSeries Development,     Endicott, NY
Phone  607.752.6027    fax 607.752.1497     t/l 852

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