MULTICAST COMMUNICATION SYSTEM, REPEATING NODE DEVICE TO BE USED FOR MULTICAST COMMUNICATION AND TRANSMISSION CONTROL METHOD FOR REPEATING NODE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a multicast communication system and a repeating node device in which the band of a multicast communication path is efficiently utilized and suitable control is enabled corresponding to respective blocks, transmission line characteristics on a network and a management policy or the like.;SOLUTION: A repeating node device 30 is provided on the communication path. This repeating node device 30 is equipped with a function to be operated as a multicast receiver to a transmitter for receiving multicast data transmitted from the transmitter, correcting a packet loss when that packet loss occurs and buffering a multicast packet distributed from the transmitter and a function to be operated as a multicast transmitter to the receiver for distributing the multicast packet to receivers under control and the multicast communication is appropriately controlled corresponding to the transmission characteristics of the network connected with the receivers under control independently of the transmitter.;COPYRIGHT: (C)2003,JPO