Patent Document ID: 8249109
Application ID: 12754914
Patent Status: 1

Claim One:
1. An information packet preclassification method comprising: a network interface port receiving a packet of information; a packet parsing engine (PPE) differentiating the packet into packet segments; using a PPE decision tree random access memory (RAM) comprising a logic decision tree with multiple levels, comparing one or more packet segments in the packet to a node at a tree level, where each node comprises one or more node reference segments and corresponding node comparison operators, logic decision tree comparing segments as follows: at a first tree level, comparing a first segment in the packet to reference segments in an intermediate node; in response to the comparisons, branching to a node in a second tree level; comparing a second segment in the packet to a plurality of reference segments in the second tree level node; in response to walking down the logic decision tree, the PPE accessing a classification attribute in an updateable classification database; and, the PPE assigning the classification attribute for the packet.