[K12OSN] Network Error Troubles Again ...

[Mark Gumprecht]

Over 300 ft will cause all sorts of quirky errors.
My sonic wall would lockup multiple times throughout the day. 
(ie)Shortened the length of cable and I have not had any problems since.
Mark

Jim Christiansen wrote:

> I know I'm shooting in the dark but my school needs some new ideas 
> again :-)
>
> My son is doing a Science Fair Project on clustered computers and has 
> everything functioning just fine and looks like he may make it to the 
> nationals with his angle using open mosix.
>
> He wanted to run a series of seti jobs on one of my labs that is 
> k12ltsp based but using a bunch of knoppix-cluster cds to come up with 
> some really impressive numbers (and for the fun of it).
>
> What he discovered was that of 14 network drops, only three 
> consistently returned errors:0 dropped:0.  All of the others after 
> running for only a minute or so were ifconfiging errors:25 dropped:150 
> or worse.  This is on the exact same machines that work steadily 
> through every school day as k12ltsp clients w-i-t-h one or two random 
> freeze-ups each day.
>
> Our technician has been in the school recently and has added a couple 
> new long runs to switches 300 feet away from the main gear in our 
> network.  I don't think that a network tester was used to check the 
> new runs...
>
> Is it possible that these errors be caused by new but faulty distant 
> network runs? Or, is this a problem that is more likely local to a bad 
> switch the library boxes are hooked to?
>
> Please feel free to bring out the crystal balls for this one!
>
> Jim
>
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-- 
Mark Gumprecht
Data Systems Specialist
MSAD#3
74 School Street
Unity, Maine 04988
207-948-6142
gumprechtm at msln.net