费策略，如节假日优惠，分时段优惠等，这些都是 AAA 管理需要管理的畴。
根据 HFC 网络特点阐述了其 AAA 的实现机制，并且阐述了通用对象请求代理体系结构
在网络资源管理系统中的地位，以与详细分析了 AAA 的整体框架和实现。
关键词: 网络管理；计费管理；AAA；CORBA；宽带接入；网管
ABSTRACT
This paper based on the project that supported by the funds of Beijing
Science and Technology Committee.The project is a broadband community network
management based on HFC.This paper first introduces some related market and
technology backgrounds,and makes a conclusion that there is seldom the
netword management sortware with its own reserved copyright now in China.
Although the community netword structure is compatatively simple,as a
common netword management,community netword management also fronted
distributed,beterogeneous network environment.This paper persents the system
farmeword of our community netword management and then bring forwards design
goals of our system;distributed objects,hierarchical design,platform
independent and extendsible.
AAA Management is one of the important functions of network management.It
is also the key that the ISP withdraws the investments.The community network
management provides not only the access service of the broad band , but also
the additional services such as VOD,remote education.Besides,it should
provide flexible accountion ways,such as accountion by month,by traffic,or by
time.It also provides flexble accountion policy,such as making a discount on
holiday,or in period of time.What are talked above are all in the scope of
AAA Management.
The implement of AAA Management is depended on AAA. AAA is the
abbreviation of authentication,authorization and accounting.Authentication
can be known as the identification of the user;the mean of Authorization is
the permission of the network services to the user by the result of
Authentication;Also,Accountion can paly as the recording role for the
quantity of the user spending on the network services.
In this paper,we expatiate on the mechanism of the implement of AAA by the
peculiarities of the sructure of HFC, and analyze the use of CORBA in the AAA
Management.Moreover,we are able to provide design model of AAA Management.
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