[c-nsp] full duplex mismatch speed - dynamips

[Seth Mattinen]

On 8/19/2010 12:26, Gert Doering wrote:
> Hi,
> 
> On Thu, Aug 19, 2010 at 10:52:48AM -0600, John Neiberger wrote:
>> Adam, you are my new best friend. I've been saying this for the past
>> few years and people still think I'm crazy. I flat out refuse to
>> manually configure speed and duplex for someone unless it is
>> demonstrated (or I can verify) that a duplex mismatch is actually
>> happening or there is some other extenuating circumstance that
>> requires it.
> 
> JFTR, count me in that camp as well (and that has been discussed here
> on c-nsp just a few months ago as well).
> 
> The PA-FE-TX is really the only thing left in our network that needs
> force-duplex.
> 


I, believe it or not, still have a 3640 floating around with a NM-4E set
to 10/full on all interfaces. It hasn't died yet and does its intended
job perfectly.

I'd tried to turn up a fast ethernet with Verizon a while back and their
policy was to set the ports on the overture to 100/full, no auto.

But these are both fringe cases these days. Other than that it's autoneg
all the way. It's not the 90's anymore. There's absolutely no reason to
not use it.

~Seth