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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

1806.0. "Hubwatch and 16 slot hubs" by TROOA::LEONG () Wed Dec 21 1994 15:47

I have a customer who is using a DECagent 90 to manage a 16 slot DEChub 90 
(two DEChub 90 connected back to back). There is one DECbridge 90 in the 
16 slot hub. The DECagent 90 is on the backbone side of the bridge.

Hubwatch does not seem to be able to get any information on the second hub
- even though the second hub has 4 DECrepeater 90Ts, Hubwatch shows it 
unpopulated. I have manually added the 90Ts but get the incorrect status on 
the ports.

- What is the process to configure in a 16 slot hub?
- How do I get Hubwatch to find out about the second hub?

Any information is appreciated.
T.RTitleUserPersonal
Name
DateLines
1806.1GuessCONSLT::BUZZELLWed Dec 21 1994 15:528
    
    
         Well aquick guess would be that they tied the 2 hubs together 
    with ThinWire but didn't tie the serial management bus together
    with a serial cable. Without that the bridge doesn't see the repeaters
    in the 2nd hub.
    
    
1806.2Ho do you do it?TROOA::LEONGWed Dec 21 1994 16:0811
    
>         Well aquick guess would be that they tied the 2 hubs together 
>    with ThinWire but didn't tie the serial management bus together
>    with a serial cable. Without that the bridge doesn't see the repeaters
>    in the 2nd hub.
    
Ed, thanks for the very fast reponse.

How do you tie the serial management bus together?    

Leslie.
1806.3BC16E-xxALBANY::BARTLEYWed Dec 21 1994 16:281
    
1806.4Standard cableCONSLT::BUZZELLWed Dec 21 1994 16:325
    
    
         With a standard serial cable. BC16E-* 6pin mmj - 6 pin mmj.