The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2014
Filed:
Feb. 29, 2012
Compound masking and entropy for data packet classification using tree-based binary pattern matching
Applicant:
Lars Ernström, Palo Alto, CA (US);
Inventor:
Lars Ernström, Palo Alto, CA (US);
Assignee:
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/56 (2011.01);
U.S. Cl.
CPC ...
Abstract
A method in a network element of a packet data network classifies a data packet for application of a packet data network policy. A root node compound bit mask is applied to bits of a received data packet. The data packet has data in a plurality of fields. The compound bit mask has a plurality of bit masks each having bits in a different data packet field. The masked bits of the compound bit mask are applied to root node bit tables, one for each bit mask of the compound bit mask. A branch node from the root node is selected based on a bit table look up.