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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

2058.0. "PCI Based FDDI Issue" by GRANPA::TKURTZ () Tue Jun 04 1996 15:57

	We have an ALPHA2100a running OpenVMS 6.2 and Pathworks Vs. 4.2. 
the Pathworks piece is crashing at peak usage times of the day. The NIC is a
dual head PCI based FDDI (DEFPA-BA??). One thing I suspect is that the second
connector on the FDDI does not have a physical connection or valid loopback.
Could this be my problem?

Regards,
Tom Kurtz -MCS
T.RTitleUserPersonal
Name		DateLines
2058.1NETCAD::STEFANIWed Jun 05 1996 08:3923
>>	We have an ALPHA2100a running OpenVMS 6.2 and Pathworks Vs. 4.2. 
>>the Pathworks piece is crashing at peak usage times of the day. The NIC is a
>>dual head PCI based FDDI (DEFPA-BA??). One thing I suspect is that the second
    
    By "dual head", I assume you really mean "dual attachment".  The FDDI
    PCI dual attachment station (DAS) multimode fiber optic adapter is the
    DEFPA-DA.
    
>>connector on the FDDI does not have a physical connection or valid loopback.
>>Could this be my problem?
    
    No.  With only one port attached, the adapter will be in a wrapped
    state.  However, this is a low level FDDI function which doesn't impact
    OpenVMS or PATHWORKS.  In fact, the OpenVMS driver doesn't know whether
    the card is single or dual-attached or whether only one of the
    dual-attached ports is connected.
    
    Verify with OpenVMS engineering that you're running that latest DEFPA
    driver.  I know there was a patch made after 6.2 shipped.  You may want
    to crosspost in the PATHWORKS conferences, as well.
    
    - Larry
2058.2DEFPA Is FineGRANPA::TKURTZThu Jun 06 1996 11:3812
Larry,

  Thanks for your response. The problem appears to have been solved. MAC
Pathworks For DOS Vs. 1.3 was installed after VMS Pathworks For DOS Vs. 4.2 w/
ECO8. The MAC S/W tread over the NETBIOS.SYS file originally installed with VMS
Pathworks. MAC Vs. 1.3 uses NETBIOS.SYS Pathworks Vs. 5.0. 

  You have at least put my mind at ease for future installs using
dual-attachment DEFPA's.


Tom Kurtz -MCS