Dell Powerconnect 6224 add stacked (defining ports)

Hi,

I have dedicated ports to do the stacked.

Do I need to define the ports (1/XG1 and 1/XG2) before adding my slave switch?

console>enable
console#config
console(config)#stack
console(config-stack)#stack-port 1/xg1 stack
console(config-stack)#stack-port 1/xg2 stack
console(config-stack)#end
console#copy running-config startup-config
console#reload

Thanks.