NGN和软交换

Next Generation Network and Softswitch

文章介绍了下一代网络(NGN)的标准化进程和基于软交换的网络演进,探讨了软交换与IP多媒体子系统(IMS)的关系。文章认为运营商在面对网络演进时需要采用平滑过渡的手段,所以对新的网络设备提出了新的要求:对于核心网络,运营商希望能够支持多种流量、多种业务,具有丰富的协议、大容量和高性能;对于边缘网络,运营商要求具有丰富的接口能力;对于业务,运营商希望提供灵活有效的业务平台和用户可接受的新型终端设备;对于网络管理和维护,运营商则需要智能化的管理体系。

The standardization process of Next Generation Network (NGN) and the Softswitch-based network evolution are comprehensively introduced. The relationship between Softswitch and IP Multimedia Subsystem (IMS) is discussed. It is emphasized that network evolution should be carried out in a smooth way. This requires new network equipment to be capable of meeting carriers' various demands. Core network equipment should support different traffic flow, multiservice, multiprotocol, and have the advantages of large capacity and high performance. Edge network equipment should have diversified interfaces. Flexible service platforms and new kinds of user-acceptable terminals are favored by carriers for service development and more intelligent network management systems are highly in demand for network management and maintenance.