| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching hub device for smoothly transferring a transmitted multicast packet and an ITV (industrial television) camera system. SOLUTION: In the switching hub device and the ITV camera system, a switch engine part Hb provided in the switching hub SH 1 acquires a hardware multicast address from a packet, combines the hardware multicast address with a connection destination port of a multicast packet transmission destination to store them in a memory part Ha, acquires a connection destination port related to the multicast packet transmission destination on the basis of the hardware multicast address in the received multicast packet and transfers the multicast packet to the connection destination port. COPYRIGHT: (C)2008,JPO&INPIT
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