An Identifiers Separating and Mapping Architecture

Traditional Internet faces many challenges, ranging from security threats, routing scaling problems to inadequate support for mobility, multihoming and traffic engineering. This paper proposes a clean-state network-based architecture, named identifier separating and mapping architecture (ISMA), to solve these problems. The key design concepts of ISMA include separating customer networks from the core network strictly, decoupling node identities from their network locations, and bridging customer networks and the core network by a mapping service. In ISMA, nodes in customer networks communicate with each other using their stable accessing identifiers (AIDs), while the switching-routing identifiers (SRIDs) that contain their location information are hidden inside of the core network. The separating scheme can provide efficient improvements in routing scalability, security and location privacy, while the mapping scheme is of great benefits to mobility, multihoming and traffic engineering.