[K12OSN] hub vs. switch at eth0

[Andrew Fisk]

I would think that the auto sensing is a pretty good guess, although  
I would look at duplex rather than speed -- if you can not configure  
the switch then set the card to 10 / half, and then bump it up from  
there -- you might find that as long as nothing has to "auto" sense  
that you can run at any speed you like.  I discovered this problem  
the hard way on Cisco 2950's with IBM's built in NICs-- which makes  
me think that the cost of the hardware is not  a guarantee of problem  
free networking.

Andy
Spitfire Computer Services
441 Beaver Street
Suite 202
Sewickley, PA 15143
Phone (412) 749-0162
Fax: (412) 749-0203
andy at spitcomp.com
www.spitcomp.com

On Aug 29, 2005, at 8:23 PM, David Trask wrote:

> "Support list for opensource software in schools."  
> <k12osn at redhat.com> on
> Monday, August 29, 2005 at 4:47 PM +0000 wrote:
>
>> Why don't you just pull out the Realtek card and that will force the
>> server to use the onboard NIC as eth0?  Sounds like it is an old  
>> NIC card
>> that doesn't play well with the Amer switch.  I have seen before  
>> where
>> certain NIC's were not compatible with an Amer switch.  So much for
>> standards.  The Amer stuff is pretty low end networking gear and
>> sometimes doesn't work very well.  Is the RealTec NIC a 10/100 or  
>> just a
>> 10 Mbs NIC?   Sounds like the Amer isn't doing a good job of  
>> autosensing.
>>
>
> Don'ty blame the Amer Switch....I have a whole building full of  
> them 50+
> ranging from little 5 ports to 24 port and gig switches....I also have
> MANY C110W Amer NIC's.  I have a schoolwide LTSP network (600  
> users) and
> not one issue.  Sounds like the network card may be partly to  
> blame.  Take
> out the NIC and replace with another...try the switch again and then
> see.....you can also try another Amer switch....it's possible you  
> have a
> lemon, but not to worry as it has a lifetime warranty.
>
> David N. Trask
> Technology Teacher/Coordinator
> Vassalboro Community School
> dtrask at vcsvikings.org
> (207)923-3100
>
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