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Date:      Mon, 5 Aug 1996 09:01:44 -0500 (CDT)
From:      Joe Greco <jgreco@brasil.moneng.mei.com>
To:        dfr@render.com (Doug Rabson)
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: 100BASE-TX hubs
Message-ID:  <199608051401.JAA00426@brasil.moneng.mei.com>
In-Reply-To: <Pine.BSI.3.95.960805134630.10082C-100000@minnow.render.com> from "Doug Rabson" at Aug 5, 96 01:55:17 pm

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> [This is somewhat off-topic but it seemed likely that a few people reading
> this list might know the answer]
> 
> I was thinking of building a small 100BASE-TX network at home to try and
> stress-test our NFS code and also investigate its performance.  It seems
> to me that I need a hub of some kind but I can't find any reasonably
> priced 100BASE-TX products at all.  The best I can come up with is the SMC
> 5108TX which at $1595 for 8 ports (and I only want two or three) is wildly
> expensive compared to an 8 port 10BASE-TX hub.

I don't know what UK prices are like, but...

I assume you are looking at the SMC TigerHub 100, which I see here listed in
DataComm's catalog for $1299 (meaning it can be had 10% cheaper elsewhere).

In the same catalog I see LanCast 6490 8-port 100base-TX for $929, a price
I hadn't been aware of...  almost any 100baseTX solution I've seen has 
been > $1000.  Hmm.. also an Asante' 6-port for $969 "with free 10/100 
adapter".  That isn't a bad deal.

However, if you're looking for something that is affordable - it just ain't
there.

> Are there any suppliers of low cost 100Mbps ethernet hubs out there
> (preferably with a UK distributor)?  Alternatively, can I avoid a hub
> altogether?  I vaguely remember something about a wire-swapped cable which
> could connect two systems together.  How would I go about buying/making
> such a cable?

I thought Rod Grimes gave us an answer to this a while back, but I don't 
see it readily apparent in my archives..  I would be interested in this
answer too.

> On the other hand, maybe I will just scrounge some old 10Mbps equipment
> :-(

That's not such a bad idea either.  It's extremely inexpensive, particularly
if you dump the 10base-T hubs (i.e. crossover cables) or go with 10base-2.

... JG



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