Patent ID: 9406381
Filing Date: 2016-08-02
CPC Classification: G06F,G11C,H04L

Claim Text:
1. A search unit comprising: a distributor TCAM (ternary content addressable memory) to store distributor rules and to match an input key to one of said distributor rules; and a DRAM (dynamic random access memory) search unit comprising a DRAM storage unit and an associated DRAM search logic unit, said DRAM storage unit having a large plurality of sections, each section pointed to by a different distributor rule and storing a small plurality of rules defined by its associated distributor rule, said DRAM search logic unit to receive said input key and to receive a section identifier (ID) from said distributor TCAM responsive to the input key matching said one of said distributor rules, and to search through said small plurality of rules in the section pointed to by said section ID and to select one of the small plurality of rules best matching said input key.