Patent ID: 6801530
Filing Date: 2004-10-05
Classification: H04L

Abstract:
An Internet Protocol network having service differentiation based on whether or not a flow in the network is a real-time flow, the Internet Protocol network including a flow classifier capable of checking one or more of a plurality of features of said flow, each of said plurality of features being indicative of said flow being either not a real-time flow or possibly a real-time flow, said flow classifier including:a plurality of feature classifiers, each of said plurality of feature classifiers being capable of checking a different one of said plurality of features and of classifying said flow as either not a real-time flow or as possibly a real-time flow, wherein said plurality of feature classifiers includes a feature classifier capable of checking the feature of a payload size of a transport layer datagram of a packet of said packet stream; and a decider capable of deciding that said flow is a real-time flow if all of said plurality of feature classifiers classify said flow as possibly a real-time flow.