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:
Mar. 29, 2011
Filed:
May. 29, 2007
Stanley Taihai Chow, Ottawa, CA;
Peter Rabinovitch, Kanata, CA;
Bassem Abdel-aziz, Kanata, CA;
Alcatel Lucent, Paris, FR;
Abstract
Packets of a certain type from a certain source are directed to a system that estimates the set of destinations and the number of new destinations for which that source has sent packets during a time window T. Instead of maintaining tables with the complete destination addresses for each source, the destination addresses are hashed and stored in a small bit array. The sets of destinations for a number of successive time windows are OR'ed for building cumulative tables C, where Cincludes all destinations that have been seen between Tand T. The new destinations are determined by counting the destinations set in Tbut not in C. Any change from the typical patterns can be suspected as being a slow scan.