Thursday, April 12, 2001
Noon - 1 pm
Hammerschlag Hall D210
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
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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