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:
May. 12, 2015
Filed:
May. 19, 2010
Fang Liu, Shanghai, CN;
Fang Liu, Shanghai, CN;
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
In an embodiment, the method of identifying an application protocol includes classifying a data packet to be detected into an individual traffic flow, searching for keywords in a valid payload of the traffic flow based upon a keyword database of identifiable application protocols, and determining a keyword weight vector of the traffic flow. The weight of a keyword is related to a location of the keyword in a valid payload of a traffic flow. Similarities between the keyword weight vector of the traffic flow and feature keyword weight vectors of the identifiable application protocols are determined; and an application protocol corresponding to a feature keyword weight vector with the highest similarity to the keyword weight vector of the traffic flow as the application protocol of the traffic flow is deteremined if a condition is satisfied.