关键词: 802．1x Radius协议 认证 计费 宽带网络

Abstract:

This paper puts forward a design scheme for the extended 802. 1x Standard and the Radius Protocol that realizes extended applications in terms of the  demands of App, and presents the design and development of a broad-band accounting system based on the extended 802. lx Standard and the Radius Protocol  . The system offers authentication and accounting which aims at single users, supports the capability of switching off the user＇s real-time connectionss when the user＇s balance is insufficient, which can not be done in case of non-expansion, and provides many kinds of accounting tactics and preferenti ial policies according to a monthly contract, time, flow and protocol. It meets the accounting demands at the telecommunication level to a great extent.

Key words: 802.1 x, Radius, authentication, accounting, broad-band network