FTW: International OpenFlow/SDN Testbeds

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Pacific Rim Application and Grid Middleware Assembly - Experimental Network Testbed (PRAGMA-ENT)

Time 04/01/15 01:30PM-01:50PM

Room Bayview Ballroom 214

Session Abstract

The Pacific Rim Application and Grid Middleware Assembly (PRAGMA - http://www.pragma-grid.net) is an international community of researchers that actively collaborate to address problems and challenges of common interest in eScience. The PRAGMA Experimental Network Testbed (PRAGMA-ENT - http://www.pragma-grid.net/expeditions.php) was established in October 2013, with the goal of constructing an international software-defined network (SDN) testbed to offer the necessary networking support to the PRAGMA cyberinfrasctructure. PRAGMA-ENT is isolated, and PRAGMA researchers have complete freedom to access network resources to develop, experiment, and evaluate new ideas without concerns of interfering with production networks.
In the first phase, PRAGMA-ENT focused in establishing an international L2 backbone. With support from the Florida Lambda Rail (FLR), Internet2, PacificWave, JGN-X, and TWAREN, PRAGMA-ENT backbone connects OpenFlow-enabled switches at University of Florida (UF), University of California San Diego (UCSD), Nara Institute of Science and Technology (NAIST, Japan), Osaka University (Japan), National Institute of Advanced Industrial Science and Technology (AIST, Japan), and National Center for High-Performance Computing (Taiwan).
Currently in second phase, PRAGMA-ENT is now evaluating technologies for the control plane - how to enable multiple experiments (OpenFlow controllers) to co-exist. Preliminary experiments with FlowVisor revealed some limitations, and a new approach (called AutoVFlow) is being developed by H. Yamanaka (NICT, Japan). AutoVFlow is a virtual network slicing technology similar to FlowSpace firewall and OpenVirtex. A unique feature of AutoVFlow is that it provides a distributed implementation of slicing by controllers of different domains, instead of a central slicing controller. This architecture fits better to widely distributed network testbed composed of different administrative domains (as PRAGMA-ENT).
In this talk we will share our experience in the establishment of PRAGMA-ENT backbone (with international L2 links), its current status, and control plane plans. Discussion on preliminary application ideas, including deployment of global scale virtual clusters; evaluation of overlay network technologies; optimal routing control; multipath routing control; and remote tiled-display visualization will be also presented.


Speaker Mauricio Tsugawa University of Florida

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