🚀 go-pugleaf

[This followup was posted to comp.os.ms-windows.networking.misc and a 
copy was sent to the cited author.]

On the Sat, 11 Jul 1998 21:13:58 +0100 , Tom Bird wrote... 

> In article <35a7a1c9.5287796@news.demon.co.uk>, John Perry
> <JohnPerry@redoak.co.ukNOSPAM> writes
> >I've just upgraded our network of 7 machines from BNC to mixed BNC/RJ45.
> >
> >We have two hubs (a 9 port and a 5 port - 55 pounds incl VAT) which are
> >connected by BNC, also on the BNC string is another PC which is the
> >print server, and it all works well.  I'd put a 3Com 3C589D card in the
> >last PC, only it wont work with it :-(.
> >
> >I find RJ45 more reliable, and the machines seem to be detected better.
> 
> A question:
> 
> The two hubs are connected with BNC stuff.  Lets say machines A, B and C
> are on the first hub with D,  E and F on the second.  If A is copying
> from B, would that affect the speed that stuff could be copied from D to
> E?
> 
> TB                                  Team TSF (UK)
> 

Yes, it don't matter if your using 802.3 or 802.5, if its coax of optic, 
there will be some sharing. In the case of 802.3, it doesn't matter what 
your topology is, backbone, star, ring, the system is broadcast and all 
machines will receive the data for the other two machines and only accept 
the data addressed to them. In the case of 802.5, ok its a ring any way 
you look at it, but the same applies here, all machines receive the 
token, only the one its addressed to will set the copy bit and release 
the token (depending on whether its quick release or not of course).

Get your self some books on protocols. May I suggest "Computer Networks" 
by Andrew Tanenbaum ISBN 0-13-349945-6. Its a good book to start with. 
Covers protocols, cables etc, and the all important OSI reference model.

Stuart.

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My views are my own and nobody else's, so there.
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