Seminars & Colloquia

James Won-Ki Hong

University of Science and Technology

"Internet Traffic Monitoring and Analysis using NG-MON "

Thursday March 17, 2005 04:00 PM
Location: 136, EGRC NCSU Centennial Campus
(Visitor parking instructions)


Abstract: Today, multi-gigabit networks are becoming common in Internet service providers (ISP) and enterprise networks. The bandwidth of ISP's backbone networks is evolving from OC-48 (2.5 Gbps) to OC-192 (10 Gbps) to support rapidly increasing Internet traffic. Also, enterprise networks are evolving from 100-Mbps or 1-Gbps to 10-Gbps networks. Further, the types of traffic on these networks are changing from simple text and image based traffic to more sophisticated and higher volume traffic (such as streaming rich media, voice and peer-to-peer). Monitoring and analyzing such high-speed, high-volume and complex network traffic is needed, but it lies beyond the boundaries of most traditional monitoring systems. This talk will present NG-Mon (Next Generation Network Traffic Monitoring and Analysis System) developed at POSTECH.

NG-Mon is a real-time, passive traffic monitoring and analysis system that can be used by various applications such as traffic characterization, network planning, application traffic analysis, network security attack detection, billing and so on. We present its scalable and cost-effective architecture, implementation, deployment and its usage in real networks.

Short Bio: James Won-Ki Hong is an associate professor in the Dept. of Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea ( He received a Ph.D. degree from the University of Waterloo, Canada in 1991 and an M.S. degree from the University of Western Ontario in 1985. His research interests include network and systems management, distributed computing, and network monitoring and analysis.
He has published more than 100 international journal and conference papers.
He has served as Technical Chair for IEEE CNOM ( from 1998 to 2000. He was technical co-chair of IEEE NOMS 2000 and APNOMS'99.
He was Finance Chair and Chair of local planning committee for NOMS 2004 ( He is an editorial advisory board member of International Journal on Network Management (IJNM). He is editor-in-chief of KNOM Review Journal ( He is also currently serving as Vice Chair of APNOMS 2005 (, Vice Chair of IEEE CNOM, and Director of On-Line Content for IEEE Communications Society.
He is a member of IEEE, KICS, KNOM, and KISS.

Host: Injong Rhee, Department of Computer Science

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