VLAN trunking speed and duplex

Unanswered Question
Dec 16th, 2009

Maybe this is a stupid question, but must the speed and duplex be hard set on each side of the trunk, or can auto negotation work?

I have this problem too.
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Jon Marshall Wed, 12/16/2009 - 16:23

erik.doss wrote:

Maybe this is a stupid question, but must the speed and duplex be hard set on each side of the trunk, or can auto negotation work?

Erik

No you don't have to set it explicilty. In fact with gigabit the recommendation is to leave to auto negotiate.

Jon

vvasisth Wed, 12/16/2009 - 20:27

you dont have to hard code it, auto negotiate should just work fine for you unless you run into a situation where you have to hard code the link for speed and uplex.

Hope that helps.

Regards,

Varun

chrishauser2 Thu, 12/17/2009 - 06:56

Hi Erik,

I agree with the answers above, this is only untrue when using fibre ports where by they can have fixed setting.  I had to change the duplex settings on my fibre ports as one side could only be set at full duplex (non cisco switch) the other (cisco switch) was auto.

Hope this helps

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