CRON: Cyber-infrastructure for Reconfigurable Optical Networks

1. CRON: Cyber-infrastructure for Reconfigurable Optical Networks PI: Seung-Jong Park, co-PI: Rajgopal Kannan GRA: Cheng Cui, Lin Xue, Mohammed Azad, P. Kondicoppa, and Chase Pierson Computer Science and Center for Computation & Technology • Introduction of CRON Federation of CRON with GENI Experimental Results(Y-shape topology) • Aggregated throughput between flows reaching 9Gbps • What is CRON? • Experimental Networking Testbed for 10Gbps High Speed Networks • Motivation of CRON • Challenges of experimentation over 10Gpbs production networks • Scarce and expensive resources • Limited access for network researchers • Interference to other production level traffic • uncontrollable networking environments • Horizontal Federation CRON with ProtoGENI@BBN • Emulab-based Component Manager & Slice Authority • Receiving user credentials • Register a slice at the Clearinghouse@Utah • Resource reservation between component managers • Creating slivers • Exchanging RSpec • Internet2 connection between CRON and ProtoGENI@BBN • Creating a vlan with ION service of Internet2 • (LONI : www.loni.bato.dcn.internet2.edu) • CRON Infrastructure • Goal : Bridging the gap between physical Networks and large scale • scientific research • Objectives : (1) Developing virtually shared 10Gbps networking and • high-end computing resources and • (2) Enabling large scale scientific experiments to share • CRON without mutual interference • Vertical Federation CRON with OnTimeMeasure@OSU • Integrating the OnTimeMeasure sliver on CRON experiment slice • Real time data diagnosis from CRON experiment slice • Components • Hardwares • Cisco N5000 switch • with 48 X 10Gbps ports • High-end servers with 10GE NICs • 10Gbps hardware emulators • Softwares • Emulab-based interface & controller • 10Gbps software emulators • (optimized Dummynet & Netem) • Example Scenario • Y-shape Topology • 1 virtual router • (3X10Gbps NICs) • 3 X 10Gbps virtual links • (30ms delay) • 2 competing flows • Softwares • OS: Ubunto 64bit & FreeBSD 64bit • Measurement S/W : Nuttcp & iPerf • TCP variants: TCP Reno, HSTCP, Cubic , HTCP, etc. • Research Impact of CRON • Next generation networking and computing research • Distributed computing for large scale computational sciences(Physics, fluid dynamics, bioinformatics, etc.), Remote visualization