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Duplex mismatch - can the type of cable cause this?

 
 
buck
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      06-15-2007, 09:52 PM
A speed test done on a server described as "Web100 based Network
Diagnostic Tool (NDT)" reports that there is a duplex mismatch.

The NIC is an Intel Pro 100/VE and the switch is a Dell Powerconnect
2024 so it does not appear that either device is problematic.

Therefore, I wonder if the cable could be the Bad Guy here? For
example, if there is a straight through cable between some of the
computers connected to the Dell but a crossover cable on this
particular computer, could that cause a duplex mismatch?
--buck

 
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kurt
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      06-16-2007, 04:59 AM
buck wrote:
> A speed test done on a server described as "Web100 based Network
> Diagnostic Tool (NDT)" reports that there is a duplex mismatch.
>
> The NIC is an Intel Pro 100/VE and the switch is a Dell Powerconnect
> 2024 so it does not appear that either device is problematic.
>
> Therefore, I wonder if the cable could be the Bad Guy here? For
> example, if there is a straight through cable between some of the
> computers connected to the Dell but a crossover cable on this
> particular computer, could that cause a duplex mismatch?
> --buck
>


It's not likely the cable. I almost always have to force ports between
Cisco switches and anything other than Cisco switches to 100-full at
both ends. I don't know who manufactures the specific switch for Dell,
but auto-negotiation issues are common. Force both sides to 100-full and
be done with it.

....kurt
 
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