Assume I have a 3 member switch stack of 3750's with the master already assigned by priority #12 and already configured and running. I want to add another member(same type and exact IOS match) that has already been provisioned (priority #1, interfaces and VLANs, etc. already configured). Reading the documentation titled "Creation and Management of Catalyst 3750 Switch Stacks Document ID: 71925" regarding the section titled the same as my Conversation Title, the 1st line completely throws me off! "When you add a provisioned switch to the switch stack, the stack applies either the provisioned configuration or the default configuration to it."
How do you get the stack to DEFINITELY accept a previously provisioned switch? By first ensuring that the existing stack has had it's current running configuration copied into it's start-up configuration? Is that it?
There are different results depending on several scenarios.
Instead of copying and pasting the information from Cisco's website, I recommend reading this document: