Apparatus for multicast packet transmission

摘要

Multicast packet transferring apparatus and system are provided in which a multicast transferring path is established between different domains (10, 20). When a multicast packet is transferred from one transferring apparatus (101) existing in one domain (10) to another transferring apparatus (201) existing in another domain (20), the former transferring apparatus (101) converts the multicast packet fed from a transmitter (111) to a unicast packet and transfers the converted unipat packet to the latter transferring apparatus (201). The latter transferring apparatus (201) reconstructs the original multicast packet from the received unicast packet and rewrites to replace a transmitter address contained in the reconstructed multicast packet with an address of the transferring apparatus (201) and then transfers the rewritten multicast packet having the rewritten address to specified receivers (211, 212).