Solved: Port Negotiation Disable

markliceralde · ‎06-27-2013

How come when you type the command on a switch:

"set port negotiate 3/34 disable"

it replies that the "feature is not supported by the port".

take note that the port is already on 100-full-duplex, I was trying to disable the auto negotiate.

Appreciate your atmost support! thanks!

Regards,

Mark

Appreciate it! Regards, Mark

Rollin Kibbe · ‎07-01-2013

Hi Mark:

This question would probably be better addressed on a LAN switching discussion than network management. What I recall, though, is that both ends of the cable should either negotiate or not; that you shouldn't arbitrarily turn off speed and duplex negotiation at the one end without doing it at both ends. This may be contributing. Some models of switch might not allow disabling negotiation, so more details would help provide a better answer.

There are a number of docs out there that discourage this, like

http://etherealmind.com/ethernet-autonegotiation-works-why-how-standard-should-be-set/

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