[c-nsp] full duplex mismatch speed - dynamips

[Andrew Miehs]

On 20/08/2010, at 5:57 PM, <Christopher.Marget at usc-bt.com> wrote:

> 
> Two mentions of problems with manually configured gigabit operation.
> 
> Is there really a problem in that scenario?  Shouldn't be.
> 
> Regardless of what the UI appears to be doing, you can't do gigabit without autonegotiating.  It shouldn't be possible to create a duplex mismatch on a gig link.

The issue is that the interfaces can usually do 10/100/1000.
If one side is set to auto, and the other to 1000/Full - the side set to auto will usually drop down to 10/Half, as this is usually the lowest common denominator.

Cheers

Andrew