Re: Connecting 2 AS400's

["Preston Sights" <wps@xxxxxxxxxxx>]

If I remember correctly I even tried this with our AS/400's 
years ago.   I believe the answer is no - you cannot 
directly connect them directly - you must go through a 
MAU (media access unit) - in ethernet terminalogy it is 
called a HUB (I believe).    It is an electrical problem.
You need a MAU.

I believe they have dumb or intelligent MAUs - ours 
are the dumb type purchased in 1986? when we first 
installed our Token Ring network from IBM and never 
has given us any problems (even moved physical 
locations once).

All MAUs out there ought to handle both 4 and 16Mbs 
so I don't see any reason to spend more than the 
low end -- vendors -- tell me why I am wrong here.
It won't make any difference in performance, just 
in error detection if one station is beaconing (just 
continiously transmitting) and can shut down the 
errant stations -- but if you only have 2 devices on 
your LAN ..................................... why bother.

Best 'o luck with LAN equipment.

Preston Sights
wps@synapse.com



> Date:          Tue, 10 Mar 1998 23:09:28 -0500
> To:            MIDRANGE-L@midrange.com
> From:          PaulMmn <PaulMmn@ix.netcom.com>
> Subject:       Re: Connecting 2 AS400's
> Reply-to:      MIDRANGE-L@midrange.com

> >We've acquired 2 AS400's, and each have a token ring card.
> >
> >So what's the problem you may ask...
> >Well, we don't use token ring (don't even have a LAN yet..).
> >
> >So I'd like to know what is the minimum cost method of linking these two
> >beasts together.  Someone said I'd need a HUB, but didn't specify what type
> >(and the catalogues have all sorts -  with prices to match <g> ).
> >
> >
> >Thanks,
> >
> >Stephen Hunt
> 
> 
> Unless I'm overlooking something, I think you could simply plug those 2 big
> square Token Ring connectors together, configure the lines, and away you
> go!  You can even get a Token Ring to Token Ring cable as an extension if
> they're more than 10' apart.
> 
> Of course, if you even -think- about adding a 3rd device, you'll need a hub
> of some sort.
> 
> --Paul E Musselman
> PaulMmn@ix.netcom.com
> 
> 
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