Disclosed are methods, devices and systems for detecting data traffic path change of UE when it is being served by an Internet application instance running on a mobile edge host, and moves to the coverage area of another mobile edge host in mobile edge computing system. One exemplary method includes receiving an application resource request for a cloud-computing services from a user equipment (UE), and allocating resources at a mobile edge computing platform to the application resource request in lieu of a server of the cloud-computing services that is reachable via an internet connection. Examples of the disclosed technology may rely on packet header information in downlink or uplink traffic received by mobile edge host, and may be a detection method independent of the signaling notification in the underlying bearer network.