LISP-based information multicasting system using location-aware P2P network technologies

By utilizing a new network protocol, Locator/Identifier Separation Protocol (LISP), a global IP multicasting system can be achieved without modifying protocol stacks of routers on the Internet. A mapping system which manages relationship between each multicast group and the group members is a core component of the system, but the centralized system requires costly resources for handling a large-scale network. In this study, a new decentralized mapping system for LISP- based information multicasting system is proposed. The proposed system utilizes a structured P2P network consisting of LISP routers to manage the membership information of multicast groups, and collaborates with two proximity-aware methods in order to shorten the start-up time needed for newly-arrived multicast members to start communicating with other members. The first method enables LISP routers to connect to lower- latency neighbors, and the second one replicates the membership information on a router which is close to all group members. This paper considers the performance of the proposed system by using a large-scale computer simulation and clarifies that the proposed mapping system with both methods can halve the start- up time compared with the simple P2P-based system.