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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

1542.0. "VAX4000-700 AND DEFQA PERFORMANCE PROBELM" by GIDDAY::STANISLAUS () Tue Dec 27 1994 22:33


	A customer has a VAX4000-700 pathworks version 4 running over the
embedded Etherent controller and there are over 80 PCs in the network and the
customer says response is acceptable for Pathwork users.

	Then he installs a DEFQA and connects it upto a DC900 in a DEChub 900
and bridges FDDI to Ethernet and says that the Pathwaorks server response is
bad. I don't believe the reason is because DEFQA sist on the Q bus and the Q bus
is slow. The LRPSIZE is 4541. Is there a simlar configuration - DEFQA and 
VAX4000 running Pathworks anywhere - to provide me with some information that I 
need to compare.

Alphonse
T.RTitleUserPersonal
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1542.1Fixed by disabling Ring Purging and CSCPAT0511GIDDAY::STANISLAUSSat Feb 25 1995 13:2110
    
    	The response was bad not only for Pathworks but also for LAT on
    FDDI.
    
    	Problem fixed by installing LAT CSCPAT0511 ver 3,6 and by disabling RING
    PURGING on the DEFQA and by making the the DECbridge 900MX do the RING
    PURGING function. Not sure which one of these two actions fixed the
    response time problem using the DEFQA.
    
    Alphonse