DATE: Thursday, April 12, 2001
TIME: Noon - 1 pm
PLACE: Hammerschlag Hall D210

Sue Moon

Sprint Labs

Internet Traffic Analysis: Monitoring the Sprint IP Backbone

Network traffic measurements provide essential data for networking research and operation. Measurement data is used to study traffic demands, develop models for network traffic, provision networks, and evaluate network performance. While there has been extensive work on network measurement systems, much of it has focused on specialized systems which collect a single type of data, and many of the measurements have been performed on edge networks or in research environments.

We have designed a passive measurement system which collects header information from every packet on OC-3, OC-12, and OC-48 network links, and uses GPS synchronized clocks to timestamp each packet. The GPS timestamps allow us to measure accurate delay, and correlate traces from multiple links in the network.

In this talk I present the system architecture and preliminary results from our monitoring project at Sprint. The preliminary results include single-hop delay, traffic matrix, and TCP flow analysis. I conclude the talk with future research topics of the project.

Sue B. Moon received the B.S. and M.S. from Seoul National University, Seoul, Korea, in 1988 and 1990, respectively, all in computer engineering. From 1990 to 1991, she worked for IMIGE Systems, Inc. in Seoul, Korea. In 1999 she received her Ph.D. from the Dept. of Computer Science at the University of Massachusetts at Amherst in 1999, and joined Sprint ATL in Burlingame, California. She is a member of the IP-Interworking group and works in the Sprint IP monitoring project. Her current research topics include delay analysis, monitoring and analysis system design, and network anomalies.

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