[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

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

1290.0. "DEMFA-to-DEMFA direct connection using BN24B-03 cable" by GIDDAY::STANISLAUS () Thu Mar 24 1994 18:37

	Reading other notes in this conference the answer to my following
question is I think an "YES", but I wish to check again.

	We are waiting for a Gigaswitch for a customer to be installed soon.
In the meantime I wish to know whether we can do the following:

	We wish to connect the DEMFA in a VAX7610 to a DEMFA in an Alpha
DEC 7630 using a BN24B-03 MIC to MIC cable, without any DECconcentrator or
DECbridge or Gigaswitch. This is only temporary till we get our Gigaswitch.

	The above is a SAS port to a SAS port connection and I believe is quite
legal. After all, when we do get the Gigaswitch and connect the DEMFA to the
Gigaswitch even at that time it will be a SAS to SAS connection. So if this
latter is legal why not the direct DEMFA-to-DEMFA connection.

Alphonse
T.RTitleUserPersonal
Name
DateLines
1290.1STAR::GAGNEDavid Gagne - VMS/LAN DevelopmentFri Mar 25 1994 08:418
    The code in the DEMFA driver in OpenVMS VAX is not at its best for
    operating the device in point to point mode.  The driver will wait
    a good amount of time (over a minute) before trying to join the ring
    (once it has been unable to do so).
    
    The OpenVMS AXP driver will try to form a ring more frequently.
    
    You have a good chance that this will work.