Context Reflector for Proxy Mobile IPv6

Proxy Mobile IPv6 has been standardized as a network-based mobility management protocol in IETF. To optimize mobile node´s handover performance, a context of the mobile node such as its identifier, accounting, authentication and authorization states is expected to be transferred between mobility entities. This paper proposes a simple context transfer mechanism named Context Reflector for Proxy Mobile IPv6 (Context Reflector). Context Reflector carries any kinds of information of mobile nodes. With Context Reflector, the service such as AAA, ROHC and QoS can be quickly re-established after handover of the mobile node. Therefore, the handover latency and the packet loss during handover can be reduced. Comparisons of Context Reflector and other approaches make it clear that Context Reflector is superior in terms of packet loss and handover latency during handover.