论文部分内容阅读
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组数成比例增长,从而构成了Anycast的扩展性问题。提出了一种在应用层实现Anycast服务的解决方案,此方案不仅解决了Anycast服务的扩展性问题,同时也解决了IP层实现Anycast服务所存在的一些其他问题,如路由表膨胀、TCP通信失败等,同时分析和讨论了该方案的可行性及有效性。
IPv6 provides Anycast services in two ways: one is to restrict members of the Anycast group to special topological areas that share an address prefix, and the other is to disperse the node group sharing an attribute represented by the Anycast address in various places on the Internet , This approach makes the routing table will be proportional to the number of Anycast groups worldwide growth, which constitutes a Anycast scalability issues. A solution for implementing Anycast service at the application layer is proposed. This solution not only solves the scalability problem of the Anycast service, but also solves some other problems existing in the Anycast service implemented by the IP layer. For example, the routing table is inflated and the TCP communication fails At the same time, the feasibility and effectiveness of the program are analyzed and discussed.