George, 
Check also your HCD definitions into zOS.
The same ancient habit keeps all terminals as 3278-2, that doesn't reply 
correctly to queryable logmodes.
The better choice is to define as 3270-X.
Have a Happy New Year.
______________________________________________
Clovis 



From:
Alan Altmark <alan_altm...@us.ibm.com>
To:
IBMVM@LISTSERV.UARK.EDU
Date:
29/12/2010 04:40
Subject:
Re: Stopping DIAL From Stripping Extended Data Stream
Sent by:
The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU>



On Tuesday, 12/28/2010 at 04:08 EST, George Henke/NYLIC 
<george_he...@newyorklife.com> wrote:
> Our Supersession boys swear it is not Superseesion. 
> 
> Could it be the Coupling Facility Service Machine doing it? 

George, the Coupling Facility is not involved in managing 3270 data 
streams.

As others have said, the problem is in the logmode associated with the 
non-SNA 3270 LU.  For some reason, VTAM sysprogs keep using ancient 
logmodes for reasons they can't actually articulate except "that's the way 

we've always done it."   For almost a quarter century, the correct logmode 

for any 3270 has been D4A3290 (local SNA) or D4B3290 (non-SNA).

The 3290 logmodes are simple, removing all screen size and capability 
information from the PSERVIC field, and causing VTAM to query the terminal 

to determine its configuration and capabilities.

Alan Altmark

z/VM and Linux on System z Consultant
IBM System Lab Services and Training 
ibm.com/systems/services/labservices 
office: 607.429.3323
alan_altm...@us.ibm.com
IBM Endicott


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