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Hi Colin<br>Most replies seem to focus on switches/network cards/type&make, however my experience of this is that often cabling gets chafed in doors/wheeled on/trodden on/pulled etc & I presume you have tried unplugging switch cleanering & replugging &/or replacing cables?<br>You should have at least one more modern managed switch in circuit as you are probably getting packet/path crashing/storms, as has been suggested<br><br>Aitch :)<br><br><hr id="stopSpelling">From: binarysignal@gmail.com<br>Date: Fri, 15 May 2009 11:51:36 +0100<br>To: kent@mailman.lug.org.uk<br>Subject: Re: [Klug-general] Network Switches<br><br><div>2009/5/15 Peter Childs <span dir="ltr"><<a href="mailto:pchilds@bcs.org">pchilds@bcs.org</a>></span><br><blockquote class="EC_gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Just rack every one brain.<br>
<br>
I have a small network made up of a number of Unmanaged Switches we<br>
have gathered over a period of time.<br>
<br>
Its about 40 PC wired round about 8 unmanaged switches. (Says he<br>
trying to count them)<br>
<br>
We suffer from Random Packet loss from time to time, this is usally<br>
fixed by unplugging the machine suffering from this error and plugging<br>
back in again. (The network cable)<br>
<br>
Where to start working out how to cure the problem on a more perminate basis....<br>
<br>
I'm wondering if the problem is Network Card, Cable, Switch or<br>
Drivers. or what.....<br>
<br>
Thanks</blockquote><div> </div><div></div><div>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. 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.</div>
<div></div><div>Colin</div><div>(just my uneducated guess) </div></div><br /><hr />"
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