IPv6中的Anycast的扩展性分析与研究

IPv6以两种方式提供Anycast服务：一种是将Anycast组成员限制在共享一个地址前缀的特殊拓扑区内；另一个是将Anycast地址表示的共享某个特性的结点组分散在互联网的各个地方，这种方式使得路由表会随全球Anycast组数呈比例增长，从而构成了Anycast的可扩展性问题。在这种情况下，本文提出了建立在BGP和ICMPv6基础之上的一个可扩展的Anycast服务方案，并且深入分析了该方案的可行性以及它的性能表现。

Analysis and Study of Anycast Scalability in IPv6

The existing designs for providing anycast services are either to confine each anycast group to a preconfigured topological region or to globally distribute routes to individual anycast groups which cause the routing tables to grow proportionally to the number of all global anyeast groups in the entire Internet, both of which restrict and hinder the application and development of anyeast services. This paper proposes a scalable architecture for global IP-anyeast service on the basis of BGP and ICMPv6 in the simulating of IPV6, and analyzes and discusses the feasibility and validity of this architecture. According to the simulation, this paper further studys its error tolerance and its performance.