Hi Aris, Assuming you have two 9500, you should be able to remove one and add a 9600. Keep in mind the IP for transit /30 VLAN to fusion router may change unless the latest version of DNAC allows you to specify it somehow so be prepared to update config on the fusion device, both interface IP and BGP. Once you get one 9600 running, repeat the same step on the other 9500. The other option is to add the 9600 as stackwise virtual and follow same process. If you find a better approach, please share experience and feedback.