In reply to kevin forsythe.

If customer has existing ME solution with 3800 running as Master, they can add 9100 AP as regular CAPWAP AP to serve the clients as long as they upgrade ME/Master to 8.9 or 8.10 release. Yes there is a migration tool for to convert AirOS config to IOS-XE base config.

DNA subscription (DNA-Essentials, DNA-Advantage, DNA-Premier) is required with 9100 series access points and same holds true for embedded controller solution. This does not mean that DNA Center appliance is mandatory to deploy embedded controller solution. Embedded controller solution can de deployed and managed with Mobile App, WebUI as well as programable interface. With DNA-Center advance capabilities can be enabled like PnP (plug and play), automation workflow for multi site management, assurance capabilities to monitor and troubleshoot multi site wireless deployment which includes features like iCAP, etc.

Embedded controller is available on all 9100 series access points which include 9115, 9117 and 9120.