Patent ID: 7653933

Claim:
A network authentication, authorization and accounting system, comprising: a subscriber device, via which a subscriber is connected with the network; an access server, connected with the subscriber device and designed to enable the subscriber device to access the network; an AAA server, connected with the access server and designed to collaborate with the access server to accomplish authentication, authorization, and accounting for the subscriber accessing the network; wherein, said system further comprises: a service server, connected with the access server, designed to provide specific services, to exchange authentication and authorization information with the AAA server, and to interact with the subscriber device to provide the service; a service accounting server, connected with the service server, designed to collaborate with the service server to accomplish accounting for service resource use of the subscriber, and to send the accounting data to the AAA server; wherein, the access server can provide QoS guarantee for service, while the AAA server incorporates the access accounting data with the service accounting data; and wherein, the service server is designed to verify identity information and authorization information of the subscriber by searching in the AAA server via the service accounting server, and authorize the subscriber to access the service.