Am 12.10.2011 12:29, schrieb Chris Roberts:
> On Wednesday 12 Oct 2011, John Ingleby wrote:
>> Just follow the installation instructions. Give yourself time to
>> experiment with just one server and workstation. You need a fast
>> (Gigabit) network switch to connect several workstations.
>
> Just to clarify this point - you benefit hugely from having gigabit between
> the server and the switch.  The clients won't benefit from Gigabit unless
> they themselves have gigabit NICs.
>
> I only make this distinction, as I believe that fairly inexpensive switches
> are available that have a couple of gigabit ports and the rest just fast
> ethernet.  In theory these should work very well.
>

Do you mean the "plug-and-play" ones or the managed ones?

Up to now, we run merely fast ethernet on every line, and we did not 
experience any real bottlenecks (at least not any caused by network) so 
far. I have to admit, however, we are running 4.2 here, not LTSP 5.

Directly behind the server, there is a 100 MBit switch. From there, 
several lines go to different rooms and floors, branching again to 
different switches and sub-switches etc. We never had the feeling that 
the network would be too slow, all clients boot and run reliably until 
there are about 40+ online. There are some slow-downs obviously caused 
by other reasons, but network has always been ok.

With one exception which suddenly came up during the last few weeks: We 
had short power break-downs from the mains during early morning hours 
caused by the electricity provider. The first switch is on the UPS with 
the server, the rest (naturally) are not.

On one of the lines (only on this one), there was a significant 
slow-down in the hours afterwards. This error was reproduceable, though 
it had never occurred the years before. I am still looking for the 
reason. After an hour or so of using the network, the error disappears. 
It feels like there is one switch sending corrupted packages for a while 
or something similar. Once or twice, it helped to unplug and repower the 
sub-switch on this line, but yesterday it wouldn't help. It just 
"healed" itself after a while.

So much about my experience. And if you have any idea what this mystery 
on one of our lines could be I will be thankful for any suggestion.

Rolf

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