南方电网CNGI驻地网设计与实现

The Design and Implementation of CSG CNGI Customer Premise Network

IPv6作为下一代Internet的核心协议,IP地址具有128位,可以解决IPv4地址耗尽问题。为了解决从IPv4向IPv6顺利过渡问题,南方电网公司实施了CNGI驻地网建设项目。为此,介绍了南方电网CNGI驻地网的设计原则和设计方案,包括网络结构设计、路由协议的选择、IP地址分配等。南方电网CNGI驻地网已实施完毕,通过双栈、隧道和地址翻译等过渡技术实现了现有IPv4用户和纯IPv6用户的接入。

As the kernel protocol of the next generation Internet IPv6 provides 128-bit IP addresses, and is able to resolve the problem of IPv4 addresses being used up soon. In order to transit from IPv4 to IPv6 smoothly, a project of CNGI Customer Premise Network （CPN） building is carried out by China Southern Power Grid Co. Ltd. （CSG）. This paper introduces the design principle and the scheme of the Network, including its structure design, the routing protocol choice, the IP address assignment, etc. CSG CNGI CPN has been implemented successfully, and it can be accessed by both the general IPv4 users and the pure IPv6 users due to the adoption of transition technology such as dual stack,tunnel and address translation.