Design And Implementation Of Integrated Routing And Network Access Server Software

With the rapid development of information technology and the increasing popularity of computer networks, Internet access to the millions already in full swing. Internet has become a people's daily life, the essential part. Solve the problem of Internet access has become an important issue.Papers for Integrated Access Server Software System Design and Implementation. The overall framework of software systems including design, the different structural design, it also contains : agreement subsystems,operation agreement with the main platform for the entire software system, the system's routing table updates, maintenance and other functions; Bearing subsystems,main types of input data packet encapsulation and judge;NNI interface based on output data packet encapsulation type functions; Network Management Subsystem to provide a user interface. Through this interface, users can use a variety of integrated and flexible way to access server operations, maintenance, management,realize configuration, security, performance, accounting, such as the breakdown of the five basic functions; System Control Subsystem,and self-initialization of the electronic hardware and software initialization functions. Papers will focus on agreements for the design of modular subsystems and network subsystems. The agreement also several key subsystems and network subsystems for the working module.The system is based on multi-task embedded real-time operating system (VxWorks), Integrated Access Server software to the software systemTornado development environment is primarily used for the C Programming Language.The system was completed, the router through the different structures of the Routing Information Protocol network topology for testing;Network management module for the machine in two stages : Goals and objectives for the board test is consistent with the overall system requirements. This paper presents the data structure and interface functions. These topics, the result has been applied to the actual network, operating with good results.