Currently, I'm using Summit X460-G2-24x-10GE4 switch as Core switch and hope to add another Summit X460-G2-24x-10GE4 switch to the Core and Stack both switches. Currently core switch has only a few VLANs and few routing as configuration. I need to know that the core switch configuration is removing or not when, configuring the stack on the current core. And Is it possible to configure the stack keeping the current core configuration? and How I do that?