AppQoE is a combination of different features on NetScaler—more precisely, HTTPDoS, priority queuing, and SureConnect.
This feature allows us to prioritize traffic based upon different parameters—for instance, where the endpoint is coming from or what kind of endpoint is connecting with the use of expressions. So, for instance, let's say we have an e-commerce website that serves both mobile and desktop users. From experience, we see that desktop devices are more likely to buy something from the site than mobile devices. In that case, if the e-commerce site reaches its maximum threshold or bandwidth, we need to prioritize the traffic and then we want desktop users to get access before mobile users.
To configure AppQoE, we need to define a policy that contains an expression and an action. For instance, this might be an expression containing Android devices:
HTTP.REQ.HEADER("User-Agent").CONTAINS("Android")
That will then have an action attached to it; the action might be what to do with...