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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

3374.0. "900CP - Is it really a switch by itself??" by ZPOTS1::JUSTIN () Mon Mar 18 1996 23:23

    Hi,
    
    	I have a customer wants some offical documentation on the 
    900CP, relating to its technical specifications. He is particularly
    interested in proof that the PortSwitch is really per-port switching.
    Also what's the thruput etc.
    
    	Is this available anywhere.
    
    Regards
    
    Justin
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3374.1STRWRS::KOCH_PIt never hurts to ask...Tue Mar 19 1996 09:497
    
    No, it's not a switch. It's a subdividable repeater. You can create up
    to 6 LAN hopping groups within the repeater. Each one of these groups
    can be LAN hopped to any Ethernet LAN on the backplane (we won't
    discuss going out the front). 
    
    So, it essentially repeats bits and nothing more.
3374.2Why name it a Switch?ZPOTS1::JUSTINWed Mar 20 1996 03:188
    
    	Just as expected. Then why the name PortSwitch. It misleads
    customers than it is a switch.
    
    Regards
    
    Justin
    
3374.3pity the poor glossy-reading customerNETCAD::MILLBRANDTanswer mamWed Mar 20 1996 16:019
>It misleads customers than it is a switch

But what is a "switch" anyway?  There are repeaters, bridges
and routers.  Switch, like hub, is just more mangled marketing
mumbojumbo.  A hub was originally a multiport repeater, but we
call a chassis with an active backplane a hub.  Try analyzing
what a MultiSwitch Hub might be!

	Dotsie
3374.4It's when a bridge is a switchPTOJJD::DANZAKFri Mar 22 1996 14:2520
    Remember a :switch: is marketecture for a bridge.
    
    However, in the early IP world with broadcast storms and falwed IP
    implementations routers were preferred and the term :bridge: was the
    kiss of death.
    
    But router performance at one time was a teeny tiny fraction of what a
    bridge could do.
    
    So, companies started making :switches: (multi port bridges) which
    solved this nasty problem as IP got better.
    
    My Dictionary sez that a switch typically changes paths.  So - if I
    have a multi-port repeater that can push-point-click to change a
    path/LAn conenction, it's a switch.  And, besides, after you demo a
    PORTswitch to a customer...most of them WANT IT because no other vendor
    can do that nice stuff as well as we can.
    
    So, get 'em to SWITCH to Digital! (grin)
    
3374.5"(grin)" from Jon Danzak?SLINK::HOODYour bad news bearFri Mar 22 1996 16:593
Has anyone else noticed that Jon is in a good mood today?

Kinda scary...
3374.6NPSS::WADENetwork Systems SupportFri Mar 22 1996 17:143
    There must be a piece of news that he hasn't heard as yet...
    
    
3374.7Of course - it was Friday!PTOJJD::DANZAKTue Mar 26 1996 09:539
    Of *course* I was in a good mood.  It was Friday!
    
    But now it's Tuesday and this must be Belgium...or no..it's Dayton
    again today.  (I think that I'll avoid that Air Force base - last time
    they really did *NOT* like that Roamabout product there......)
    
    (grin)
    j