Hello Iljitsch!
You wrote:
>> I thought it is much faster than 100Mbps ethernet because of the
>> fiber-technologie...
>> Is FDDI a kind of TokenRing-technologie?
>
> Yes, it is. Actually fiber is "slower" than copper: the speed of light in
> optical fiber is 200.000 km/s, while the speed of electricity in copper
> is 300.000 km/s. But 100 megabits per second is always 100 megabits per
of course. But what are the advantages of fiber compared with copper?
the indistructibility? I assume it is more difficult to handle?
> second, so FDDI and fast ethernet share the same bitrate. The overhead is
> quite different, though. They both perform pretty well when just one
> station is sending. When all stations are sending a little ethernet has
> the advantage: no waiting for the token. When all stations are sending a
> lot FDDI wins, because the bandwidth is more or less evenly distributed
> and it's easy to fill up the entire bandwidth. With ethernet you get a
> lot of collisions that all waste a little time and bandwidth. Still,
> switched fast ethernet wins from FDDI every time.
I guess I would have to look for a hub with a built-in switch. But for a
little network with 3 or 4 computers and one server, sending or receiving
MBytes of files, I wonder how much time is wasted because of collisions
or if it is neglectible. Aren�t there any collisions with a switch?
> connections could be bottlenecks, because a single host connected at 100
> megabit could fill that bandwidth. The alternative would be gigabit
> ethernet for the backbone switch, but that's expensive, not only because
> of the switch but also because you'll probably want to use fiber and
> that's pretty expensive. You have to order the fiber cabling made to
> length, because it's not possible to attach the connectors without
> special equipment.
hm, again fiber. Exact measurements of the rooms are neccesary. Is it
flexible like cooper? (around corners and such;))
> So you could have 20 workgroup switches with 48 100 megabit ports
> connected over 1000 megabit. In theory you'd need 4800 megabits, but in
> the real world this would be a very fast network.
got it.
When a client wants to go online to Internet, is then a router necessary
or would the server recognize the request by the client and goes online?
Or must this be handled by scripts?
Regards
--
Andreas Meyer
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http://home.wtal.de/MeineHomepage/
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