Kenjiro Cho, Research Director

The Internet is global, folks!

Research Director

Kenjiro Cho

Contact Info

IIJ Research Lab
Iidabashi Grand Bloom, 2-10-2 Fujimi, Chiyoda-ku Tokyo 102-0071, Japan
phone:+81-3-5205-6464 fax:+81-3-5205-6506 email:kjc at iijlab dot net

Research Topics

My research focus is on understanding network dynamics from a global view, which contributes to turning the Internet into a simpler, more flexible and more dependable communication infrastructure.

The Internet that is an inter-network of distributed autonomous networks shows surprisingly complex behaviors due to interference of various technologies. For example, a local optimization sometimes has a negative impact to the global system, and such a global impact is often overlooked. We also need to take it into consideration that, even if there is no problem at the moment, it might affect future technical evolution. It is important for the global Internet that we look at technologies with a global perspective, and understand their technical impacts as well as social impacts.

My research projects include measurement of traffic dynamics, and quality of service.

Traffic measurement from ISP backbones
DNS measurement
IPv4/IPv6 comparative path analysis
Publicly available packet traces from the WIDE backbone
Network data visualization
ALTQ (a framework for packet scheduling)
NECOMA Project (cybersecurity for improved resilience against cyber threats)

Teaching

Keio SFC 2016 Spring: Internet measuement and data analysis (in English)

Keio SFC 2015 Spring: Internet measuement and data analysis (in Japanese)

older classes

Software

Open source software

including ALTQ, aguri, and ttt.

Visualization

Publications

A list of publications

Professional Activities

A board member of the WIDE Project (2001-)
A guest professor at Keio University, Environment and Information Studies (2010-2016)
An adjunct professor at JAIST, School of Information Science (2002-2016)
A senior visiting researcher at Keio Research Institute at SFC (2006-)

CoNEXT Steering Committee Member (2008-2011)
An advisory board member of the OneLab project (2009-2010)
A board member of Asia Future Internet Forum (2009-)
A steering committee member of Asian Internet Engineering Conference (AINTEC) (2007-)
A steering committee member of International Conference on Future Internet Technology (CFI) (2010-)
Genel Co-Chair of IMC 2015, CoNEXT 2011.
Vice General Chair of SIGCOMM2007.
A committee member of SIGCOMM2011, SIGCOMM2008.
PC Co-Chair of IFIP Networking 2013, Future Internet Workshop at CoNEXT 2006, AINTEC2008, AINTEC2006, AINTEC2005
TPC members: APNet 2018, ITC 30 2018, TMA2018, APNet 2017, ITC 29 2017, TMA2017, IC2016, WNM2016, TMA2016, WNM2015, TMA2015, AINTEC2014, CoNEXT2014, ICCE2014, WNM2014, IFIP Networking2014, TMA2014, WNM2013, TMA2013, PAM2013, IMC2012, AINTEC2010, SIGCOMM2009, PAM2009, ReArch'08, AsiaBSDCon2008, QoSim2008, QoSim2009, AINTEC2007, SIGCOMM2005.

ACM Recognition of Service Award (for contributions to ACM IMC2015). December 2015.
ACM Recognition of Service Award (for contributions to ACM SIGCOMM2007). November 2007.

Misc

OpenPGP publickey fingerprint: 4DDF 260C CB14 6D28 CD83 2BE4 555B E672 640B DA0C
(old publickey fingerprint: FFC4 5675 A05F 8AE9 3CDC A95C 91CF CAD0 D9FB 511F)

Links

last update $Date: 2018/04/02 03:25:53 $