Patent ID: 7509394
Filing Date: 2009-03-24
Classification: G06Q,H04L

Abstract:
1. A method, comprising: providing a remote authentication dial-in user service (RADIUS) system that includes a RADIUS client and a plurality of RADIUS servers that communicate with the RADIUS client via RADIUS protocol; allowing one of the plurality of RADIUS servers to transmit a notification message to the RADIUS client on the basis of a packet format in the RADIUS protocol, the notification message including information relating to an available or unavailable state of the one of the plurality of RADIUS servers; and allowing the RADIUS client to update a state of the one of the plurality of RADIUS servers in a server information list according to the available or unavailable state of the one of the plurality of RADIUS servers contained in the notification message, the server information list comprising information of the available or unavailable state of each of the plurality of RADIUS servers, the notification message being separate and distinguished from a response to a request message by the RADIUS client requesting authentication, authorization and accounting services.