Importance

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Abstract

Techniques and technologies are provided for querying wireless switches in a first mobility domain about a wireless client device. The first mobility domain comprises a first mobility area and other mobility areas. According to one implementation of these techniques, a first wireless switch in the first mobility domain can determine if the wireless client device is in the first mobility area of the first wireless switch. If the first wireless switch determines that the wireless client device is not already present in the first mobility area, then the first wireless switch can transmit a query message to a first designated wireless switch for the first mobility area. The first designated wireless switch can transmit or forward the query message to its external peer designated wireless switches in the other mobility areas of the first mobility domain. Each of the external peer designated wireless switches can then determine if the particular peer designated wireless switch has an internal peering session with the home wireless switch of the wireless client device. The particular external peer designated wireless switch (which has an internal peering session with the home wireless switch of the wireless client device) can then transmit a response message to the first designated wireless switch. The first designated wireless switch can then forward the response message to the first wireless switch that originated the query message.

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First Claim