Patent attributes
Provided is a multicast distribution device for transmitting a packet in which a reception node can easily perform signal synchronization between a plurality of hierarchized data. The multicast distribution device (100) includes an input unit (110), a hierarchy encoding unit (112), a communication control unit (114), a flow rate control unit (116), a reception node sorting unit (118), a hierarchy setting unit (120), a hierarchy information storage unit (122), and a reception node information storage unit (124). The reception node sorting unit (118) decides the order of addresses described in an address list of a packet of each hierarchy in the descending order from the most significant hierarchy to the least significant hierarchy. When deciding the address order for an arbitrary hierarchy, the address order decided in the more significant hierarchy by one step is acquired as it is and after this, the address order of the remaining reception node is decided.
