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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

739.0. "Flexible channel in a DEChub ONE ??" by ADO75A::BOUCHER (Reece Boucher) Thu Feb 17 1994 19:57

    Greetings,
    
    I have been doing some comparisons between the Synoptics 28xx series
    and the DECrepeater 900TM and we come out way in front in most areas
    except one.
    
    The Synoptics solution is stackable, so therefore if they have a higher
    port density requirement they do not have a multiple repeater count to
    the additional repeaters in the stack.
    
    Is there a possibility of bringing a connector for a flexible channel
    to the rear of a DEChub ONE for interconnection of DEChub ONE repeaters
    in a "stackable" environment, ala Synoptics (and most other vendors) ? 
    If not, what is a good marketing strategy to combat the FUD that they
    will place on the limitations of our hubs being standalone devices.
    
    Input welcome.
    
    Reece Boucher
    Adelaide, Australia
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739.1we have more features for the same moneyDELNI::GIUNTAThu Feb 17 1994 20:1020
    There are some discussions going on regarding this, but I don't yet
    have any formal plans for a rack and stack solution that incorporates
    the IRB.  
    
    To sell against them, you can use our additional functionality (per
    port security), and our flexibility and investment protection in that the
    900TM can later be used as an in-hub solution if they want to do that.
    Additionally, you can get the actual user numbers the customer is
    planning to hook up to see if the Synoptics is really cheaper as we're
    priced right on top of them at 32 ports.  And anyone looking to put the
    Synoptics repeater in more than 1 location will always have to buy the
    2813 for the management, so you will start your comparisons against
    that.  I have a feature comparison that I just finished on all the
    rack-and-stacks, but I haven't put it in a public file yet. I can make
    some of that information available if you think it will help you.
    
    I think if you sell hard against the 2813, you will win in most cases.  
    
    Regards,
    Cathy
739.2STRWRS::KOCH_PIt never hurts to ask...Thu Feb 17 1994 23:2117
    Which modules do you want to stack? Creating a stack seems simple. Why
    not just put a AUIxThinwire adapter and Thinwire the modules together?
    You could also put an AUIxTP adapter and use the DEMON-AA to TP them
    together. Both of these solutions would not violate the repeater count
    since the Thinwire is Ethernet and not repeating the the DEMON would
    create a 3 hop repeater, well within the new guideline of 4. From what
    I understand, this is how stackables do it anyway. They just connect to
    each other. We have more flexibility.
    
    Also, each of our modules is manageable out of the box via SNMP or the
    DEHUA OBM port. Are theirs or do they require a seperate management
    module? If they do, how does the customer manage them if the manager
    goes down? We don't have that problem with out built-in management.
    Plus our management software is only $495. The Sales Update articles
    also puts a high price tag on their management software.
    
    Let's make sure we're comparing apples to apples.
739.3what is stackable?VAXRIO::ROLFVaporware Design SpecialistWed Mar 16 1994 12:2510
    I am just trying to catch up reading this most interesting notefile and
    the present note brings up a question:
    
    The basenote indicates that "other" stackable repeaters do NOT count as
    additional repeaters in the chain, yet the answer in .2 seems to dis-
    agree with that.
    
    Which is correct?
    
    Rolf
739.4there's rackable and stackableDELNI::GIUNTAWed Mar 16 1994 20:3915
    Digital does not make a truly stackable repeater today. Our repeaters
    are really rackable in that they can be mounted together, but they all
    count as individual repeaters when counting hops to check for repeater
    rule violations.  The basenote was asking how our products compare to
    the Synoptics stackable repeater series (2813/2803).  Their repeaters
    are stackable in that you can stack up to 4 non-managed units with 1
    management unit to make the whole thing manageable and have it count as
    only 1 repeater hop.  They make use of some sort of Inter-repeater bus
    (IRB) that allows those modules that are stacked to be treated as 1
    logical repeater.
    
    Although I don't have any plans for this today, it is something that we
    are looking at.
    
    Cathy
739.5STRWRS::KOCH_PIt never hurts to ask...Thu Mar 17 1994 07:227
    Ok, but I still think with our DEChub One units we can accomplish the
    same thing. Put an AUIxThinwire adapter, thnwire them together and it's
    only 2 hops and you don't have to buy a seperate management unit for
    them. 
    
    I think we should be accentuating the positive aspects of our product
    set instead of apologizing for rack vs. stack capabilities. 
739.6of course we can live without them, but...VAXRIO::ROLFVaporware Design SpecialistMon Mar 21 1994 13:297
    "True" stacking can be an advantage if you have other repeaters in the
    LAN and you need to keep the hub's 'internal' repeater count as low as 
    possible.
    
    Besides I have seen bids requesting "stackable hubs" explicitally!
    
    Rolf