Hierarchical mapping information distribution system for ID/Loc separation for scalable addressing and routing

To solve major limitations to the current Internet such as scalability, mobility and QoS-aware inter-domain routing, IRTF RRG has recently proposed identifier(ID)/locator(Loc) decoupling mechanism. Several proposals for distributing ID/Loc mapping information among transit routers have been discussed so far, but the mapping information distribution system itself has not been studied in detail. This paper proposes a hierarchical ID/Loc mapping information distribution system, and explains how the proposed system can provide scalability in ID/Loc distribution system against the current IP network model. A hierarchical ID/Loc mapping system using X.500 directory service can provide reduction to processing queries with efficient longest prefix matching. Also, it gives effective feasibility to deploy among transit routers.