[Klug-general] Network Switches

[Daniel Subert]

What's the pattern for the switches? Are they connected in a star, bus  
or circle network? If star, replacing the main switch with a managed  
one may work.

Sent from my iPod

On 15 May 2009, at 11:56, Peter Childs <peterachilds at gmail.com> wrote:

> 2009/5/15 Colin <binarysignal at gmail.com>:
>> 2009/5/15 Peter Childs <pchilds at bcs.org>
>>>
>>> Just rack every one brain.
>>>
>>> I have a small network made up of a number of Unmanaged Switches we
>>> have gathered over a period of time.
>>>
>>> Its about 40 PC wired round about 8 unmanaged switches. (Says he
>>> trying to count them)
>>>
>>> We suffer from Random Packet loss from time to time, this is usally
>>> fixed by unplugging the machine suffering from this error and  
>>> plugging
>>> back in again. (The network cable)
>>>
>>> Where to start working out how to cure the problem on a more  
>>> perminate
>>> basis....
>>>
>>> I'm wondering if the problem is Network Card, Cable, Switch or
>>> Drivers. or what.....
>>>
>>> Thanks
>>
>>
>> I would guess you have a switching loop some place and could be  
>> suffering a
>> broadcast storm.
>>  This could be initiated from a faulty NIC.
>
> Given the way the lights flash (On the back of the relevent computer),
> I can understand that diagnosis, Some machine are more prone to it
> that others, I might be able to swap out the more prone machines.....
> (Some are thin clients)
>
>
>> We had a
>> similar problem couple of years ago and replaced all unmanaged  
>> switches with
>> managed ones and enabled STP.  This stabilised the network and  
>> stopped
>> switching loops/broadcast storms.
>
> Could probably remove one or two of the switches, with a bit of
> rewiring, (groan) replacing every switch ain't going to happen it
> takes long enough here just to buy a light bulb.
>
> Peter.
>
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