Hyojoon (Joon) Kim

    Ph.D. Student
    School of Computer Science
    College of Computing
    Georgia Institute of Technology
  



Bio | Research Interest | Publications
(last updated: Nov. 2011)

Bio

I am a second year Ph.D. student at Georgia Tech under the supervision of Professor Nick Feamster. I am broadly interested in network systems and technologies, but currently more focused on network performance & reliability enhancement, network configuration, network management and security.  I received my B.S in Computer Science from University of Wisconsin - Madison and M.S from Georgia Tech. In the past, I have worked as a research engineer in Future Systems which is a major manufacturer of network & security solutions in South Korea.

Research Interest

I seek various ways to enhance current network management systems. As identifying and understanding problem areas in current methods is an important first step, I collect and analyze configuration files from network devices (routers, firewalls, switches, etc) deployed in the network to find interesting characteristics about current network configuration and management methods.

I am interested in SDN (Software Defined Networking). I believe SDN has a vast potential, especially in making network management much easier. I have been doing research in (and using) OpenFlow since I started my graduate studies. Currently, I am working on Resonance which is a novel dynamic network management framework for campus and enterprise networks, which is implemented with OpenFlow v1.0. More information can be found here.

uCap is a data cap usage management tool for home network users, which uses OpenFlow and OpenWRT. uCap is implemented on top of the BISMark framework, and built with Resonance. uCap passively collects and sends data usage information of each device to the back-end database. Home users can monitor their data usage through a web browser, and also set data usage caps (capacity) for each device. When a device's data usage reaches its cap, the connection will be blocked by the uCap framework.


Publications

Conferences & Workshops

  • Procera: A Language for High-Level Reactive Network Control.
    Andreas Voellmy, Hyojoon Kim, Nick Feamster
    ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking (HotSDN)
    Helsinki, Finland. August 2012. To Appear.
  • Understanding the Evolution of Network Configuration: A Tale of Two Campuses. [ Full paper (pdf) ]
    Hyojoon Kim, Theophilus Benson, Aditya Akella, Nick Feamster.
    ACM SIGCOMM Internet Measurement Conference, 2011 (IMC 2011).

Posters & Demos

  • Communicating with Caps: Managing Usage Caps in Home Networks - Poster/Demo. [ Paper (pdf) ]
    Hyojoon Kim, Srikanth Sundaresan, Marshini Chetty, Nick Feamster, W. Keith Edwards.
    ACM SIGCOMM, 2011.
  • Network Configuration Analysis - Poster. [poster pdf]
    Theophilus Benson, Hyojoon Kim, Aditya Akella, Nick Feamster.
    Usenix Symposium on Networked Systems Design and Implementation, 2011 (NSDI 2011).
  • OpenFlow Campus Trials: Resonance - Poster. [poster pdf] [Demo video]
    Hyojoon Kim, Ankur Nayak, Samantha Lo, Tim Upthegrove, Nick Feamster, Russ Clark.
    The 7th GENI Engineering Conference (GEC7). Durham, NC, March 2010.