Patent ID: 8224989
Filing Date: 2012-07-17
Classification: H04L

Abstract:
1. A machine-implemented method comprising: a) obtaining network packets; b) grouping the collected network packets into a plurality of flows; c) for each of the plurality of flows, i) determining that the packets of the flow include one of (A) compressed image content, (B) compressed audio content, or (C) compressed video content using at least one of time domain statistics, frequency domain statistics, or higher order statistics, and ii) determining at least one of (A) content-independent flow characteristics, (B) port-independent flow characteristics, or (C) application header-independent flow characteristics; d) if it is determined that at least one of the plurality of flows includes compressed image content, selecting a policy for handling the at least one flow including compressed image content using both (1) the determination that the flow includes compressed image content and (2) the determined at least one of (A) content-independent flow characteristics, (B) port-independent flow characteristics, or (C) application header-independent flow characteristics; e) if it is determined that at least one of the plurality of flows includes compressed audio content, selecting a policy for handling the at least one flow including compressed audio content using both (1) the determination that the flow includes compressed audio content and (2) the determined at least one of (A) content-independent flow characteristics, (B) port-independent flow characteristics, or (C) application header-independent flow characteristics; and f) if it is determined that at least one of the plurality of flows includes compressed video content, selecting a policy for handling the at least one flow including compressed video content using both (1) the determination that the flow includes compressed video content and (2) the determined at least one of (A) content-independent flow characteristics, (B) port-independent flow characteristics, or (C) application header-independent flow characteristics,