A communication model on implementing anycast service with multicast tree in IPv6

A new kind of Anycast communication model is proposed on the basis of multicast tree technology in this paper. Since this model achieves dynamic Anycast group and allows Anycast members to freely leave and join Anycast group it solves the existing scalability problem. In addition, this model accomplishes the distributed maintenance and transaction of Anycast service request and the information on Anycast tree so it fulfills the load balance. This paper deeply analyzes and discusses the feasibility and validity of this communication model, and the experimental data in IPv6 simulation demonstrate that the TRT of one Anycast service(for example, file downloading) acquired through this communication model is shorter than the one through the current communication model.