A framework for scalable global IP-anycast (GIA)
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Application-layer anycasting: a server selection architecture and use in a replicated Web service
IEEE/ACM Transactions on Networking (TON)
IPv6 anycast for simple and effective service-oriented communications
IEEE Communications Magazine
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The existing designs for providing Anycast services are either to confine Anycast groups to a preconfigured topological region or to globally distribute Anycast groups across the whole Internet. The latter causes the routing tables to grow proportionally to the number of global Anycast groups in the entire Internet and both of the above designs restrict and hinder the application and development of Anycast services. In this paper a new kind of Anycast communication model is proposed on the basis of Anycast tree technology. Since this model adopts a dynamic Anycast group, allowing Anycast members to freely leave and join the Anycast group, it radically solves the existing scalability problem. In addition, this model accomplishes the distributed maintenance and transaction of Anycast service requests and information on the Anycast tree; thus it performs load balance. This paper analyzes and discusses the feasibility and validity of the communication model; the experimental data in IPv6 simulation demonstrate that the total response time of one Anycast service (e.g., file downloading) acquired through this communication model is shorter by 15% than that through the current communication model.