SYSTEM AND METHOD FOR FILTERING A DATA PACKET USIN

专利名称：SYSTEM AND METHOD FOR FILTERING A

DATA PACKET USING A COMMON FILTER

发明人：Victor Liang,Shiang-feng Lee,David Ho Suk

Chung

申请号：US12428375申请日：20090422

公开号：US20100272120A1公开日：20101028

专利附图：

摘要：System and method for filtering a data packet using a combined filter aredisclosed. In one aspect, the method includes receiving a data packet and N filters each

comprising a mask and value. The method includes receiving a data packet and N(wherein N is an integer and N>1) filters, each filter comprising a bit mask and

corresponding bit values. The method further includes generating a common filter maskand the corresponding bit values by taking the overlapping mask bits among portions ofthe N filters corresponding to the common filter, the common filter being of a lengthsmaller than each filter. The method further includes applying the common filter mask tothe data packet to determine whether there is a match between the filtered data packetand each of the N filters.

申请人：Victor Liang,Shiang-feng Lee,David Ho Suk Chung

地址：Irvine CA US,Irvine CA US,Rancho Palos Verdes CA US

国籍：US,US,US

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