Communication control unit and communication control method applied for multi-cast supporting LAN
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United States of America Patent
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Apr 23, 2013
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app pub date -
May 20, 2010
filing date -
Jun 17, 1998
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Abstract
A multicast processing section constructs, when it is determined that a received packet is a packet on a multicast packet and multicast group management protocol, a table showing a correlation between a host device and a multicast group in a port number-multicast physical address correlation storing section as well as in a multicast router-connected port storing section according to the received packet, and controls to transfer a packet for each multicast group between a multicast router and host devices according to the table.
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