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Conference 7.286::fddi

Title:FDDI - The Next Generation
Moderator:NETCAD::STEFANI
Created:Thu Apr 27 1989
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2259
Total number of notes:8590

2111.0. "DEFPA/high resolution problem" by CHEFS::bunnys.reo.dec.com::sheriffj (just one more.......) Wed Aug 14 1996 13:07

Hello all...

Is anyone aware of problems with DEFPA driver sets when used in high resolution terminal 
emulation?

Please find details and symptoms. Any feedback would be greatly appreciated...

Hardware -	Celebris GL5100
		DEFPA-UA
		17" Monitor
Software -	Pathworks D/W V6.0
		Win V3.11
		DOS V6.22
		defpa.dos v2.7
		Matrox Millenium Screen driver
		Reflection 2 for Windows

System boots OK. All applications work such as MS/Office etc. When a LAT based terminal 
emulation app is started the connection succeeds but as soon as we ask the VAX to display 
anything the session hangs and ultimately terminates. Windows hangs and requires cold restart. 
Problem minimised at screen resolution of 640/680, however still intermitent. DEFPA drivers 
updated which has eliminated the problem at low resolution.

Is there a problem with this driver set at high resolution..?

Kind regards all....

Justin Sheriff
T.RTitleUserPersonal
Name		DateLines
2111.1NETCAD::STEFANIWed Aug 14 1996 14:2020
    >>System boots OK. All applications work such as MS/Office etc. When a
    >>LAT based terminal  emulation app is started the connection succeeds
    >>but as soon as we ask the VAX to display  anything the session hangs
    >>and ultimately terminates. Windows hangs and requires cold restart. 
    >>Problem minimised at screen resolution of 640/680, however still
    >>intermitent. DEFPA drivers  updated which has eliminated the problem at
    >>low resolution.
    
    >>Is there a problem with this driver set at high resolution..?
    
    There is no "high resolution" setting on the driver.  The driver is a
    simple NDIS 2.01 real-mode device driver that emulates Ethernet in both
    packet format and size.  From the driver perspective, there's no
    concept of what applications are running in the system or how the
    terminal emulation SW is configured.
    
    Have you been able to reproduce the problem using other DEFPA 
    drivers or other adapters (eg. DE450 or DE500)?
    
    - Larry
2111.2NETCAD::STEFANIWed Aug 14 1996 14:248
>>Hardware -	Celebris GL5100
    
    I neglected to add in my last note that there does exist a hardware
    problem with the original DEFPA and Triton-based systems like the
    Celebris GL.  There's a sales blitz that went out on this, but you
    can check with John Buzynski (NETCAD::BUZYNSKI) for a copy.
    
    - Larry