Multicast service apparatus and method based Proxy Mobile IPv6

摘要

PURPOSE: A multicast service device based on a PMIPv6 and a method thereof are provided to minimize multicast traffic transfer delay due to a re-subscription procedure of a mobile node to a multicast group. CONSTITUTION: An LMA(Local Mobility Anchor)(100) additionally stores multicast group related information received from a mobile access gateway(MAG1)(210) in a BCE(Binding Cache Entry) of a mobile node(33). The mobile node receives a PBU(Proxy Binding Update) message from a newly accessed mobile access gateway(MAG2)(230). The mobile node transfers a PBA(Proxy Binding Answer) message to the mobile access gateway(MAG2) wherein the PBA message includes the multicast group related information.