I'm looking at deploying a single WLC 5580 into a data centre and I'm trying to decide if to use flexconnect or to tunnel traffic back to the controller. There will be 2 offices each with 40 access points. The wireless will need to support roaming voice traffic.
Will I have any issues with flexconnect and 30 access points? I'm aware that you can only have 25 aps per flexconnect group but I dont know if this has any limitations such as dirty roaming? Also is tunneling traffic back to the WLC ok for voice and video traffic as the traffic will have to travel back from the data centre to the local offices?
Will there be any issues using WPA2/AES and PEAP authentication with Flexconnect? I want to ensure that wireless clients do not disconnect and reauthenticate as they roam between access points in the same and different and flexconnect groups.
Like Leo mentioned, you need to make sure you have good coverage depending if your looking for data, voice, or location based services. You need to understand if you really need to use FlexConnect groups or not also as it is not a requirement. Devices will roam fine, but there is no benefit if you have a centralized radius and devices don't support cckm or okc.