In some examples, a first access point (AP) generates first potential target AP information identifying one or more APs to which an electronic device is able to roam from the first AP. The first AP sends the first potential target AP information to an aggregator AP that is associated with the first AP. The first AP receives, from the aggregator AP, a roaming monitoring instruction sent by the aggregator AP to one or more APs identified by second potential target AP information generated at a second AP, the roaming monitoring instruction specifying collection of roaming data for a given electronic device that has associated with the second AP.