I have to deploy Cisco Flex 7500 WLC with Cisco 1600 series APs at a customer site. There requirement is to map their existing VLANs to only single SSID. They have around 8 VLANs which are created according to the Active Directory Groups for users (Department wise). They require authentication from AD and they are using ISE 1.1 as RADIUS server. Also, customer's branch office APs will also be registered on this Centralised WLC.