ArcNet and the Pursuit of Multiple Topologies

From: Pete Turnbull <>
Date: Tue Oct 9 18:58:23 2001

On Oct 9, 12:50, Tarsi wrote:

> I've decided that one of my goals is to run every networking topology
> possible in my house, regardless if I actually NEED to run them or not.

> 4) Any other interesting topologies I should try? I have plans to do:
> Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX, 10bFiber,
> (eventually) 802.11b wireless.

ATM would be good, and although there's a lot of it around, you should be
able to pick up a couple of routers fairly cheaply.

Acorn Econet? There's Linux support for that too.

How about the original DIX Ethernet? Try a web search for Aloha.

Sinclair (Timex) machines like the Spectrum and QL used a proprietary
network, but I think the only other company to ever use it was ICL.

Do you count ADSL, ISDN, X.21, or just LAN stuff?

10base2, 10base5, 10baseF (and FOIRL), 10baseT, 100baseTX, 100baseT4,
100baseFX, 1000baseTX, 1000baseSX, 100baseLX and 1000baseCX are all closely
related and you will find some excellent references at

10base2 and 10base5 are bus topologies using 50-ohm coax; 10baseF (and its
predecessor FOIRL), 100baseFX, and 1000baseSX/LX are fibre technologies
often used as point-to-point but can be used in star networks too; 10baseT,
100baseTX, and 100baseT4 use UTP and are normally used in star topologies.

Before you get too carried away, you might want to think about the
permutations of protocols, technologies, and topologies or you'll need a
much larger house :-) The same fibre that carries FOIRL can (if it's the
right size, 50/125) carry 10baseF, 100baseFX, 1000baseSX, ATM, FDDI, ...

I have a thin Ethernet (10base2) segment, a thick Ethernet (10base5)
segment, a lot of Cat5e carrying 10baseT and some 100baseTX, a chunk of
FDDI, some FOIRL, 10baseF, and potentially 100baseFX, at home; and there's
lots of redundant ATM kit at work but (a) I have no room, and (b) I'd have
to buy it (which is against my religion). I also have some Econet, ISDN,
UUCP serial links, etc.

Pete						Peter Turnbull
						Network Manager
						University of York
Received on Tue Oct 09 2001 - 18:58:23 BST

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