Patent ID: 6363429
Filing Date: 2002-03-26
Classification: H04L

Abstract:
In a computer network with a plurality of network devices, a method for determining a data traffic signature, comprising the steps of:determining an average packet spacing parameter including a running average of differences in arrival times of data packets in a data stream sent between a source network device and destination network device on a computer network; determining an average packet size parameter including a running average of a size of data packets in the data stream; determining an average packet jitter parameter including a running average of a difference in arrival time of data packets in the data stream referenced to an expected arrival time for a data packet; determining a variation in packet size parameter including a running average of differences in size from packet-to-packet in the data stream; and creating a data traffic signature for the data stream using one or more of the average packet spacing, average packet size, average packet jitter or variation in packet size parameters.