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Along with the core of the next generation softswitch network large-scale commercial , VOIP (Voice over Internet Protocol) services are widely carried out , the user can easily access through the Internet to the soft -switched network , using voice , SMS, conference calls and other telecommunications business. In order to protect the security of telecommunication networks , edge access controller (Border Access Controller, abbreviated BAC) is introduced deployed in the Internet network ( MAN ) and softswitch network edge , in order to isolate the private telecommunications network and the public Internet , shielding internal telecommunications network topology. But now the mainstream equipment manufacturers an edge access controller supports up to 50,000 registered users, 5,000 concurrent users the capacity , which is the capacity of carrier-class equipment requirements far . This topic is committed without reducing the safety and reliability of the device in the case , the edge of the access controller address existing smaller capacity problems and the technical difficulty, economy, the development cycle , maintenance facilities , and several aspects of the comprehensive evaluation, and strive to find the best solution . The issue is now in the Guangdong Telecom network edge access controller device deployment and application , based on the analysis of the edge of the access controller device the background , as well as domestic and foreign research technical principles , put forward in the development of new hardware platforms without under the premise , the use of existing edges of the access controller, through changes in software development and networking , building a \Through the network security and reliability of the detailed analysis and demonstration , and laboratory testing and validation , the results showed that \the requirements of the existing network can try. Apply the results of the research projects of Guangdong Telecom bulk edge access device construction projects , construction equipment selection as a basis for guiding the construction project so that the project can proceed smoothly , network optimization and adjustment work to ensure the safe implementation . Meanwhile, the issue is not the development of new hardware platforms , software development and networking only by changes in research methods to solve problems , can be widely used in practical engineering practice, has a certain significance to promote the application .
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