What is traffic analysis used for? Network planning: need to know traffic between pairs of networks(traffic matrix) Accounting: usage based billing Detecting Dos attacks: flood attacks Application characterization: breaking up the traffic based on port numbers SIGCOMM 2002SIGCOMM 2002 What is traffic analysis used for? • Network planning: need to know traffic between pairs of networks (traffic matrix) • Accounting: usage based billing • Detecting DoS attacks: flood attacks • Application characterization: breaking up the traffic based on port numbers • …