3750 stacking problems with new switch

[Claus Andersen]

Hi

At a customer i've tried to add a new 3750 switch til a running stack.

I used the following proccess:

1. connect stack cables to the new switch

2. bootup new switch.

Normaly the new switch will become a member of the stack, but here, the switch says its the stack master. I can see that the stack port from the old swtiches connecting the new is up.

The only way i could make it work was to provisioning the new switch as switch nr x, save, power off and then connecte it and boot it up.

The IOS i the same on all switches.

/claus

[Somasundaram Jayaraman]

Hi

Could you please check the priority in both the switches?

from the show sw detail output you can see the priority configured in both the switches.

++ Higher the priority of the switch more chances of becoming the master.

To change the priority,

switch priority <1-15>

++ The new priority will take into effect only if the switch is reloaded.

By default the priority would be 1.

-http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00807811ad.shtml

Hope this answers your question.

Cheers

Somu

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[Latchum Naidu]

Hi Claus,

Follow the below link about the procedure how to add a new switch to an existing stack.
http://www.thenetworkadministrator.net/index.php/2011/01/adding-a-cisco-3750-switch-to-an-existing-stack/

Please rate the helpfull posts.
Regards,
Naidu.