We currently run 2 3550's using HSRP as our core switches. They also control all intervlan routing. We have about 20 connections coming into these switches from our various wiring closets. I want to upgrade these two switches to a stack of 3750's utilizing StackWise technology. How would I go about this to disrupt my network the least? Should I give the 3750 stack a different IP address from the 3550's, enable RIP to sync the routing tables, and then shutdown the VLAN interfaces on the 3550 and create the VLAN interfaces on the 3750 stack using the same VLAN interface IP address? This would allow me to maintain my routing with only a short disruption to each VLAN while I shut it down and "move" it to the 3750 stack. Once all VLANS have been moved, I should then be able to disconnect the incoming fiber from the 3550, connect the fiber to the 3750 stack, and finally shut down the core 3550 switches. Does this sound like a viable solution or is there a more simple route?
Thanks in advance for any help,