On Thursday, 01/05/2006 at 06:20 CST, Rick Troth <[EMAIL PROTECTED]> wrote:
> Of course,  one thing PVM will do is carry IUCV traffic.
> Specifically,  AIX/370 would network thru PVM.   (I mean,  really,
> TCP/IP over PVM.  No joke!)   This should be the same model as
> Linux/390 uses,  but I have not checked.   (For that matter,
> one could carry VM TCP/IP traffic over PVM.   So it's not just
> a Linux or Unix thing to do IP via PVM.)

Actually, the Linux TCP/IP IUCV line driver does not work with PVM.  You 
must construct IUCV messages specifically designed to go through PVM and 
Linux doesn't do it.  Further, if you look at z/VM TCP/IP local and remote 
IUCV configuration, you will see the are configuration differences; Linux 
doesn't have a provision for them.  (But since PVM isn't licensed for IFLs 
except via special bid it hasn't been a practical problem for Linux.)

In a VM cluster (ISFC collection), IUCV traffic will flow transparently 
between systems across ISLINK CTCs.  The Holy Grail is ISFC-over-IP.

Alan Altmark
z/VM Development
IBM Endicott

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