Probably broadcast storm.  Fastest way to fix the problem - single
connect your switches, and don't loop the last back to the first.
Then, learn how switches work.  I only have a rudimentary
understanding myself.



On 2/24/08, John Nietzsche <[EMAIL PROTECTED]> wrote:
> Dear gentleman/madam,
>
> i was given 4 2724 dell powerconnect switches and only 6 patch cords.
> Besides that, i was given a challenge to connect them each other
> having a full interconnection schema (thanks my classes on graph
> theory, i could do it using only 6 patch cords). So, given any two
> switches there is a direct path between them. Instead of cascading,
> this approach avoid a single point of failure and allows, for
> instance, a uplink of 3 Gb/s between any given two switches and
> reduces patch cords usage (my graph edges in this scenario).
>
> The problem raises when i turn them on: After some time (from seconds
> to 1 or even 2 minutes) the switches go crazy. I cannot even ping the
> ip assigned to the switch i am connected directly  not to mention a
> desktop located on another switch.
>
> Is there any configuration that could be done to allow such
> interconnection shema ?
>
> thanks in advance.
>
> PS: please, forgive me my OT message, but i am really desperated.
> Could some one point me a better list to place my message?
>
>

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