[Klug-general] Network Switches

[nic dan]

Hi Colin
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?
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

Aitch :)

From: binarysignal at gmail.com
Date: Fri, 15 May 2009 11:51:36 +0100
To: kent at mailman.lug.org.uk
Subject: Re: [Klug-general] Network Switches

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. 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.

Colin(just my uneducated guess) 
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