[K12OSN] LTSP slows down on subnet

[Paul Satherley]

Hi,
Just a thought is your Cat5 cabling up to spec...  10Mbps ethernet will 
work in a hub enviroment with faulty wiring
when you got to 100Mbps all the problems appear...  ie split pairs etc..


Les Mikesell wrote:

>On Sun, 2005-01-23 at 13:40, Jason Waskiewicz wrote:
>
>  
>
>>I tried out an old hub that has been in storage, but it was unacceptably
>>slow. I then drove to the city and bought a switch. I had no improvement
>>in speed.
>>    
>>
>
>Did you use the 2-NIC setup on your server with the switch and your
>clients on the 2nd nic?
>
>  
>
>>When I reconnect the clients and server to the school network, they all
>>speed up (although still unacceptably slow). This is true without changing
>>a single setting!
>>
>>Can someone help me? I'm new to this and I can't find this particular error.
>>    
>>
>
>One of the worst things that can happen speed-wise is a duplex mismatch
>between the NIC and switch port.  Hubs always run half-duplex; switches
>can do either but you want them to use full duplex.  Most things will
>negotiate this correctly these days but it is still possible to go
>wrong.  Ifconfig will show if the interfaces are seeing errors, ethtool
>or mii-too will show the duplex setting.   Make sure both the server
>NIC and the switch port where it is connected are running in full
>duplex.  If ifconfig still shows errors on the interface you probably
>have a wiring problem.
>
>  
>