1. Preface
The Next Generation Network (NGN) is an integrated and open network architecture which can provide a variety of services including voice, data and multimedia, and SoftSwitch is the core of the next generation network call and control, which provides real-time demand and service call control and connection control function for next Generation network (NGN). Since 2000, there have been some operators in the test or use SoftSwitch network scheme, the current soft switching technology as the core of broadband data and applications have been basically mature, not only can replace the existing narrowband telephone exchange network, but also in the provision of business more rich and complete.
From the development trend, the use of SoftSwitch technology for networking has become the inevitable choice of operators, and the new technology will inevitably bring some new problems, summed up as follows:
--How to analyze network business situation
--How to understand whether the equipment conforms to the network specification
--How to analyze the interconnection ability of network
--does business opening ability meet development requirements
--Does business QoS meet requirements
--How to make network fault diagnosis quickly
--whether the network plan conforms to the business development situation
Without solving the above problems, operators can not understand the details of their own business operations, will inevitably affect the business development; Unable to understand the QoS status of the business, can not come up with a convincing QoS report, will inevitably lead to a large number of customers lost; the use of equipment that does not conform to the standard, will lead to business can not be smoothly The operation cost increases greatly, does not understand the business opening ability satisfies the development request, will cause the resource waste, cannot adapt to the fast changing market demand; the failure of the business can be quickly judged, will lead to large-scale network failures, affecting the operator in the eyes of the image, leading to a decline in market competitiveness , the objective network business planning can not be carried out, which leads to unreasonable network resource structure. In short, not solve these problems, NGN network operators can not face more and more fierce market competition, can not adapt to the changing market demand, and even in the brutal competition to be eliminated.