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The simplest form of roaming is reassociation. The client always makes the decision to roam based on proprietary criteria that are most often based on RSSI. Part 1 of this series on roaming, describes how reassociation occurs. Other types of roaming will be discussed later in this series. Once a client has decided that it wants to roam it send a reassociation request to the new AP. That AP sends an ACK. The new AP attempts to inform the original AP of the reassociation request and request the STAs buffered data through the DSM (intacontroller or AP to AP - both methods are proprietary). If this communication is successful the original AP will forward any buffered data through the DSM. The