Patent ID: 7457875
Filing Date: 2008-11-25
Classification: H04L

Abstract:
1. An access server connected to a user access network and to an Internet service provider (ISP) network, the access server comprising of: first means for individually collecting communication statistics information on each of LCP sessions that was formed in accordance with an LCP (Link Control Protocol) procedure performed after a data link has been established in response to a data link establish request from a user terminal connected to said user access network and notifying, when said data link is released, an accounting server, which is connected to said ISP network for managing the communication statistics information, of the statistics information on the LCP session corresponding to the released data link; second means for individually collecting communication statistics information on each of NCP (Network Control Protocol) sessions that was established on one of said LCP sessions and notifying, when one of said NCP sessions is released, said accounting server of the statistics information on the released NCP session; and wherein said first means transmits, when each of said LCP sessions was established, a statistics process start request for LCP session to said accounting server and transmits, when said data link is released, a statistics process stop request including said statistics information on the LCP session to said accounting server; said second means transmits a statistics process request for the NCP session to said accounting server when each of said NCP sessions was established, and transmits, when the NCP session is released, a statistics process stop request includes said statistics information on the released NCP session to said accounting server; and wherein each said first and second means notifies said accounting server of the statistics information collected thereby in a packet format in accordance with a RADIUS (Remote Authentication Dial In User Service) protocol.