미래 인터넷에서의 식별자-위치 지시자 분리 아키텍처 연구 동향

Abstract

Research on Future Internet focuses on a revolutionary approach to overcome problems in the current Internet, e.g., scalability, security, mobility, and reconfigurability. Among different research issues, the addressing architecture in Future Internet is perceived as one of the most important fundamental issues. Especially, since identifier and locator coupling in the current IP addressing architecture can lead to a variety of drawbacks in terms of scalable routing, mobility, and multi-homing support, how to separate identifier and locator has been actively investigated in the literature. In this article, we first identify key requirements and design issues for the identifier-locator separation architecture. After that, we compare and analyze representative identifier-locator separation architectures, which are classified into network-based and terminal-based approaches. We also summarize recent standardization activities in Internet Engineering Task Force (IETF) and International Telecommunications Union-Telecommunications (ITU-T) and present future research directions.