Integer and combinatorial optimization
Integer and combinatorial optimization
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)
SIGMETRICS '05 Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Towards a global IP anycast service
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
OASIS: anycast for any service
NSDI'06 Proceedings of the 3rd conference on Networked Systems Design & Implementation - Volume 3
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Using IP anycast, connectionless services such as DNS can be decentralized to cope with high service request rates. Unfortunately, most Internet services cannot take direct advantage of anycast addressing because they rely on stateful communications. Subsequent packets of the same session may be routed to a different anycast group member, resulting in a broken service. Therefore, we introduce a transparent layer-3 architecture that provides anycast support for stateful services. Taking into account user demands, available resources, extra network overhead and anycast infrastructure costs, we address optimal proxy router placement and infrastructure dimensioning, an issue that has not been tackled before for similar architectures. Simulation results indicate that even modest overlay infrastructures, consisting of a small number of proxy routers, often result in an effective stateful anycast solution where the detour via the proxy routers is negligible.