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| In recent years, the global routing table size grows rapidly. The scalability of routing and addressing of Internet is concerned by network operators and research community. Among these proposed solutions, core-edge separation mechanism, represented by LISP are more acceptable than others. Mapping between globally routable IP addresses and destination IP addresses of edge network is the key component of these solutions. Although many mapping system have been proposed, their construction and maintenance is complicated, and have little incentive for deployment. In this paper, we present a practical approach to provide mapping service. This approach is a hybrid structure. Mapping servers are distributed and autonomous in regional network, and are connected together via extending DNS infrastructure and constructing an overlay network. It is easier to be deployed increasingly. |
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| Keywords:Internet routing; routing scalability; ID/locator separation; ID/locator mapping |
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