1 What's happening in Networking Research Today? Prasad Calyam, OARnet OARTech Presentation, Dec 8 th, 2004

2 Overview Introduction What are the networking research topics being discussed these days? Networking Research at OARnet! In which conferences are topics on networking research being discussed? Conclusion

3 What are the networking research topics being discussed these days? Traditional Network QoS research (E.g. Diffserv, Intserv) has become very quiet! High-performance TCP To support bulk file transfers and resource sharing amongst the Grid Communities (e.g. HENP, VLBI communities) Fast TCP, XCP, Non-friendly TCP with minimum rate control (DSTP) Buffer size issues, MTU issues Internet Geometry/Architecture Topology, Tomography, Routing Design Network Performance Measurement and Characterization Bandwidth estimation tools, Routing stability, MPLS, Congestion management, Network Troubleshooting techniques, Next-generation Measurement Infrastructures

4 What are the networking research topics being discussed these days? (2) Wireless Networking WLANs, Cellular Networks, Sensor Networks, Adhoc Networks Network Security DDoS traceback and defense mechanisms, Access Authentication and Authorization (AAA) middleware Many others… Optical Networks, Overlay Networks, Peer-to-Peer Networks, Multimedia Gaming Networks, Multicast Networks, Satellite Networks

5 OARnet Networking Research “H.323 Beacon” (Open source – runs on Windows and Linux) A tool to measure, monitor and thus troubleshoot the performance of an H.323 Videoconference sessions Official troubleshooting tool for Internet2 Commons and Megaconferences- The world’s largest Internet Conferences Presented at ACM Network Troubleshooting Workshop, Sepember 2004 Modeling Voice and Video Traffic over IP We setup a worldwide testbed involving 26 sites and collected over 300 traffic traces Our results demonstrate the impact of various audio and video end-point codecs, packet size distributions, network jitter, lost and re-ordered packets on the end-user perception of audiovisual quality Presented at Passive and Active Measurement Workshop, April 2004

6 OARnet Networking Research (2) “ActiveMon” (Open source – runs on Windows and Linux) A scalable Network Measurement Framework for setting up active measurements along multiple network paths Developed as part of the BOR TFN Measurement Project Understanding Internet Backbone Network Characteristics Studying empirical bottlenecks – cause and resulting performance issues Using ActiveMon to study Internet Traffic patterns on Campus-level, Regional-level and National-level network backbone paths To be presented at IEEE Testbeds and Research Infrastructures for the DEvelopment of NeTworks and COMmunities (TRIDENTCOM), February 2004

7 In which conferences are topics on networking research being discussed? 3 sets of communities that address Networking Research 1.Network Engineering Research Community Care more about practice Focus on short-term issues E.g. I want to setup IPv6 with XYZ specifications. What sequence of tasks work most effectively? Work mostly on real-world systems 2.Network Development Research Community Care about both theory and practice Focus on reasonably long-term issues E.g. How do I extend TCP with the novel CDE technique so that it will improve the performance of RST type of network flows in the Internet? Work on simulators and real-world systems 3.Theoretical Research Community Care more about theory Focus on very long-term issues E.g. If I use PQR technique to detect DDoS attacks which involves changing A-Z of today, will the network fairness improve? Work mostly on network simulators

8 In which conferences are topics on networking research being discussed?(2) Refereed Focus on high-impact Issues SIGCOMM, HOTNETS, SIGMETRICS, … Focus on wide-range of Issues INFOCOM, GLOBECOM, ICC, ICN, Networking, ICDCS Focus on area-specific Issues Mobicom, PAM, IMC, NOSSDAV, SECON, NetTs, TRIDENTCOM, Global IPv6 Forum… Non-Refereed NANOG, Internet2/ESCC Joint Techs  Webinars E.g.

9 In which conferences are topics on networking research being discussed?(3) (Taken mostly from Conference Statistics at Kevin Almeroth’s website)

10 More Information… To find “Call for Papers” for networking research To learn about “Conference Statistics” Conference Names, # of papers accepted/submitted (“Acceptance Ratio”), # of tracks, # of attendees, …

11 Questions?