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Re: Localtalk gateway/bridge



"Michael J. Mahon" <mjmahon@aol.com> wrote in message
20010908155831.17751.00001069@mb-ch.aol.com">news:20010908155831.17751.00001069@mb-ch.aol.com...

> When Ethernet (remember thick Ethernet?) first came out, its
> daisy-chain cabling was a complete mismatch with the topology
> of buildings and building wiring channels.
>
> Electricity, phone wires, plumbing, and HVAC are all set up
> as routing trees.  For example, trunks or mains go to wiring
> closets in work areas, which fan out to distribution boxes, which
> go to individual offices.  The "loopy" daisy-chain style of
> interconnect is a very poor fit--remember the Ethernet cables
> hanging down from ceiling tiles?  The only reasonable way to
> wire an office building for Ethernet used to be to map it as a
> star, with "loops" of cable going out to each drop and back to
> the central cabinet before it looped out to the next drop, etc.
> In this way, a drop fault could be easily isolated without any
> disturbance to other users.  (In a daisy-chain, faults tend
> to affect everyone on the loop.)
>
> xBaseT solves this problem intrinsically, by being wired as
> a tree of stars, with each branch point a hub, switch, or router.
>
> Daisy-chains are nice for an ad hoc "lab" environment (maybe
> why LocalTalk worked so well in schools), but do not map well
> to permanent office-style installations.
>
> -michael
>

Yeah, that is basically what I was trying to say except you said
it so nicely in terms of the building site. I was thinking more in
terms of an electrician trying to install a continuous cable and
then when you wanted to add a station you brought down the
whole network.  With 10baseT you don't have that problem.

--
--
William R. Strutts - wrstrutts1@nospam.home.com - Whatever!

C'est moi!  http://www.facelink.com/wrstrutts

Just hacking away...

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