Abstract: A new communication model on implementing Anycast service is proposed in this paper and it solves not only Anycast scalability but also other existing problems, such as router table explosion, TCP communication errors, and so on, which are generally caused by performing Anycast services on IP layer. At last, the feasibility and validity of this new model are analyzed and discussed. Meanwhile, according to experimental data, the performance of this model is analyzed.

Key words: IPv6, Anycast, ICMPv6, Router

摘要： 提出了一种在应用层实现Anycast服务的通信模型，此通信模型不仅解决了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它问题，如路由表膨胀、TCP通信失败等，分析和讨论了该通信模型的可行性及其有效性，并且根据实验数据对本通信模型的服务性能进行了分析和总结。

关键词: IPv6, Anycast, ICMPv6, 路由器