Almost free 2-port and 4-port fanouts, IEEE 802.3 compliant, Ethernet Version 1.0 and 2.0 compatible AUIs
21 Mar
2000
21 Mar
'00
9:34 p.m.
On Mar 22, 0:51, Eric Smith wrote:
Chuck McManis asked:
one
I'm confused, aren't these "fan
out" units just hubs?
Aaron Christopher Finney replied:
These simply provide multiple ports on a single
tap. I indicated my
interest in them for the thick ethernet segment in my garage, as I only
have 3 transceivers tapped into it at the moment. Physically, they just
connect to the tapped transciever.
Which, as Chuck suggests, is a effectively a description of a hub, albeit that has AUI interfaces rather than 10-base-T.
Ethernet hubs are
technically
multiport repeaters, and are subject to all of the
topology and distance
limits of repeaters.
I'm not sure these are repeaters, though. So a signal that's sent from a
station on one of the AUI interfaces would go onto the wire, but I'm not
sure that it would get back (directly) to the other AUI interface(s).
Anyone know?
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
22 Mar
22 Mar
8:47 a.m.
Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
I'm not sure these are repeaters, though. So a
signal that's sent from a
station on one of the AUI interfaces would go onto the wire, but I'm not
sure that it would get back (directly) to the other AUI interface(s).
It had better, or you don't have a functional ethernet, because two of
the nodes can't talk to each other. Also, the nodes have to be in the
same collision domain, so there's not really anything to be saved by
using some wacky scheme where the nodes can't talk to each other.
The only "multiport transceiver" I've ever used was a DELNI, and it
most certainly was in fact a multiport repeater.
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eric＠brouhaha.com -
pete＠dunnington.u-net.com