최근 IETF Network-based Local Mobility Management(NetLMM) WG에서 표준화 작업을 진행하고 있는 망 기반 이동성 제공 기법은 기존의 단말 기반 이동성 제공 방식의 단점을 극복하기 위해 제안된 방식으로, 현재 Proxy Mobile IPv6(PMIPv6)를 WG 공식 프로토콜로 채택하여 표준화를 진행하고 있다. PMIPv6에서는 단말이 이동함에 따라 이동 정보를 관리하기 위해 필요한 시그널링을 망 내부의 장비가 대신 수행한다. 본 고에서는 NetLMM WG에서 진행하고 있는 망 기반의 IP 이동성 제공 기술의 기술 개요 및 표준화 동향에 대해 알아보고, PMIPv6 프로토콜의 동작 절차와 WG의 향후 추진 계획 등을 살펴본다.
KSP Keywords
Mobility management, Network-based, Proxy Mobile IPv6(PMIPv6)
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