how do you sucessfully change 4 port etherchannel

Unanswered Question
Apr 15th, 2008

How do you reconfig an etherchannel from trunk mode on to desirable? have 2 6509's with an active etherchannel config'd using sup720 ports 5/1,5/2 and 6/1, 6/2. slot six is redundant card on both mls'.

I have this problem too.
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mohammedmahmoud Tue, 04/15/2008 - 11:30

Hi,

You can simply change the mode under the port-channel interface:

interface Port-channel x

switchport mode dynamic desirable

BR,

Mohammed Mahmoud.

Br4xt0n41 Tue, 04/15/2008 - 11:39

this is an active channel, if i config one side won't it drop before i can config the other side?

mohammedmahmoud Tue, 04/15/2008 - 11:50

Hi,

Technically speaking, there should be no problem, since as a DTP rule a trunk can be established if one side is desirable and the other side is either Trunk, Desirable or Auto, accordingly i don't believe that there is going to be any service disruption.

BR,

Mohammed Mahmoud.

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