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PICList Thread
'[OT] Hub or Concentrator??'
1998\10\27@184135 by Herbert Graf

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       I know this is WAY off topic (Well I am connecting a bunch of computers
together that are hooked up to PICs) but does anybody know the difference
between an Ethernet HUB and a Concentrator (sp?) Thanks in advance for any
help. TTYL

1998\10\27@190036 by William Chops Westfield

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    does anybody know the difference between an
    Ethernet HUB and a Concentrator

I think they're the same.  A hub MIGHT lack a distinct "upstream" port.
A concntrator MIGHT have a higher speed upstream port (100mbps.)  They're
marketing terms at that point.  You pay for three things:

       Technology other than 10baseT.  Thinnet and AUI support require
       more power and/or isolated power supplies  = $$$

       Management capability.  Contains a processor smart enough to talk
       to to get status, up/down individual ports, etc.

       Switching.  Packet streams from A to B don't affect packet streams
       from C to D because they have different internal paths.

I would expect all the <$100 ethernet "hublet" boxes to essentially consist
of the chip that provides the hub function, a power supply, and a bunch of
connectors...

BillW
cisco

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