Patent ID: 7477620

Claim:
A method comprising: communicating with neighboring Access Routers (ARs) and exchanging mapping information of Candidate Access Router tables to obtain information of each of the neighboring ARs and Access Points (APs) belonging to a subnet of a relevant AR; storing the mapping information of the Candidate Access Router tables in a database; and performing a communication network service in accordance with the mapping information of Candidate Access Router tables stored in the database; wherein the communication network service comprises a hand-over service between the APs using the database, wherein exchanging the information comprises: transmitting a hello packet for an information exchange to the neighboring ARs; receiving first information of at least one AR and AP stored in a first AR from the first AR receiving the hello packet; transmitting stored second information of the at least one AR and AP to the first AR; and receiving a response signal relative to transmitting the information of the AR and AP from the first AR.