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Latest message you have seen: RE: Displays around the house - volunteers please?


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Re: switch or hub



The other benefits of a switch is improved bandwith because of the
ability to run full duplex as well as the ability to mix 10/100 Mbps
links (ie have some computers running at 10Mbps & others at 100Mbps -
assuming you a switch that supports both 10 & 100 Mbps).

Claude
--- In ukha_d@y..., "Kevin Hawkins" <lists@u...> wrote:
> Hi local,
>
>     Essentially a hub is just a repeater for a network, anything it
receives
> on one wire it sends out on all the others, the effect is that
every wire
> carries everything on the network. Similar to a room where everyone
talks at
> once and can hear each other, individual conversations are still
possible
> but they get more difficult as more people get talking.
>     A switch is more intelligent in that it only send things out on
each
> wire if they have an intended destination on that wire. If for
example you
> have two computers talking to each other then that information only
appears
> on those two ports. It is sort of analogous to the telephone
exchange
> system. The effect is a much better utilisation of network
bandwidth and an
> 8 port 10Mbps hub could theoretically handle 4 simultaneous
conversations
> each at full 10Mbps speed.
>     If you are already having network problems a hub may or may not
improve
> things - as they are more intelligent they can get upset quicker by
some
> network issues e.g. multiple ip address conflicts, however they can
also
> isolate problem legs themselves. I would recommend tracking down
the problem
> as it is likely to still be there if you use a switch.
>
>     A switch is a much better solution and they used to cost way
more than a
> hub - but no more - I would recommend tracking down the problem
though as it
> is likely to still be there if you use a switch.
>
>     Kevin
>
> PS One side effect of a switch is that you cannot 'snoop' on a
network
> branch easily. I had intended to watch UDP packets travelling
between the
> SliMP3's and the mp3 server to pick out the infra red remote codes
in
> transit but of course they only exist on those two legs and not the
whole
> network ! ... DUH!



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