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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

1585.0. "DEChub 900/FDDI config questions" by CAPO::JACOMB_SC (I know enough to be dangerous!!) Mon Oct 17 1994 15:11

    Is it possible to configure the A and B ports of DECswitch 900 EF and
    DECconcentrator 900 MX so that the A port is accessible on the
    Backplane of the DEChub 900 MS and the B port is available on the front
    of the module or does it have to be both on the backplaneor both from
    the front of the module?
    
    The customer wants to be able to utilize both so he can have some
    redundancy from a faillure of the DEChub other than power.
    
    Regards,
    
    	-Scott
T.RTitleUserPersonal
Name		DateLines
1585.1Splitting A and B ports between front & back are ok...NETCAD::BATTERSBYMon Oct 17 1994 15:455
    Yes you can do this. For more details on legal FDDI configurations,
    please be sure and chack out Karl Pieper's FDDI config rules in
    base note #651.
    
    Bob
1585.2Yes, butNETCAD::B_CRONINTue Oct 18 1994 17:4413
    It is possible to have B on the front panel, and A out the back 
    backplane. Hubwatch's ligo types will show an icon, with a B in the 
    front, and an A in the back. Select that icon, and it will configure
    correctly.
    
    But, I'm not sure that this answers your question. If what you are
    asking is whether a single module can be accessed from both the front
    and the back, the answer is no, it cannot. This icon, and the opposite
    one of A out the front, B out the back are designed for connecting the
    dual ring thru the backplane. 
    
    Can you draw a picture of what the customer wants to do? I can't offer
    more than this given what's here right now.
1585.3...And to further clarify FDDI configs check note 1597NETCAD::BATTERSBYThu Oct 20 1994 14:434
    There's been a new set of FDDI config rules written in note 1597.
    these supercede rules in note 651.
    
    Bob
1585.4NETCAD::SLAWRENCEMon Oct 24 1994 14:192
    For another example, see 1584.4