Apparatus and method for forwarding packets based on approved associations between ports and addresses of received packets
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United States of America Patent
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Mar 22, 2016
Grant Date -
N/A
app pub date -
Jun 18, 2013
filing date -
Mar 24, 2003
priority date (Note) -
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Abstract
A switch includes ports including a first port and a second port. A processor approves associations between the ports and addresses of packets. A memory stores entries having respective indicators indicating approval of an association between respective ports and addresses. The first port receives a first packet sent to the switch. The controller: determines whether one of the entries includes an address of the first packet; if none of the entries includes the address of the first packet, sends a first message to the processor requesting approval of the first packet; if one of the entries includes the address of the first packet, determines whether the indicator of the one of the entries indicates approval and based on this, sends the first message to the processor; receives a response from the processor based on the first message; and based on the response, forwards the first packet to the second port.
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