Disclosed are a method for implementing a virtual AAA server, including acquiring the service processing logic of the virtual authorization, authentication and accounting (AAA) server corresponding to the service request initiated by a user according to the service request, wherein the virtual AAA server is one of a plurality of virtual AAA servers preset by a physical AAA server; and processing a service according to the service processing logic. Also proposed is a corresponding device. The method for implementing a virtual AAA server and an AAA server provided by the present invention enables the AAA server to have extensibility so as to meet the service development and client demands.
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