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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

2471.0. "Ability to re-direct Enet port 3 to backplane" by STRWRS::KOCH_P (It never hurts to ask...) Wed Jul 05 1995 17:22

    
    I'd like to put in a request that port 3 on the DECswitch 900EF and
    PEswitch 900TX have the ability to be re-directed to the backplane via
    the serial console management. I've got some situations where this is
    the only way to run HUBwatch, but in order to run HUBwatch to the hub,
    I need an Ethernet connection from the front panel to the hub lan but I
    can't do this until I get HUBwatch connected...
    
    Or am I doing something wrong when I only have switches in my DEChub?
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2471.1NETCAD::DOODYMichael DoodyWed Jul 05 1995 21:115
    If you designate the switch as the IPS, then you don't need any
    backplane connections. The MAM IP services go through the management
    channel which is directly connected to the module, there is no "hub lan".
    
    -Mike 
2471.2You neeed a flip cable...MSDOA::REEDJohn Reed @CBO = Network ServicesThu Jul 06 1995 13:2910
    I always carry a BN25F 10BaseT Flip cable (or two) with me to a new
    DEChub installation.   Using it, you can directly connect your laptop
    to the DECswitch, and set up the hub as you like it.
    
    But my poor laptop has only 8 meg of memory, and a XIRCOM PCMCIA card,
    and a monochrome monitor.  So I cannot see the LAN INTERCONNECT etches,
    and sometimes complex module configs time out my PC.   But it works for
    setting stuff up.
    
    JR
2471.3NETCAD::ANILThu Jul 06 1995 14:1412
    Note that you would not need to do this on a PEswitch, which is
    cross-wired internally on its ports, like a repeater.  Always check
    to see whether there is an "X" marked next to a 10BaseT port, to
    determine its polarity.  You will find that the PEswitch has "X" marked
    on all of its 10BaseT ports.
    
    Also, there is a convenient gizmo which you can plug into a 10BaseT
    connector to reverse whatever its polarity is - this is even better
    than carrying around both types of wires.  We don't sell it but Jim
    Kroening should be be able to point you to the vendor who does.
    
    Anil