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doi:10.1016/j.future.2006.03.012 
Copyright © 2006 Elsevier Ltd All rights reserved.
Dynamic provisioning of LightPath services for radio astronomy applications
Jerry Sobieskia, 
, 
, Tom Lehmanb, Bijan Jabbaric, Chester Ruszczykd, Rick Summerhille and Alan Whitneyd
Available online 15 May 2006.
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Abstract
A demonstration at iGRID 2005 used dynamic, deterministic, and dedicated LightPath network services to link radio telescopes from around the world with computational facilities at the MIT Haystack Observatory to create a single coherent instrument for real-time astronomical and geodetic research. The “electronic Very Long Baseline Interferometry” (e-VLBI) application provides ultra-high resolution images of very faint and very distant objects in the universe. The application-specific network topology carried 2 Gbps of VLBI data from radio telescopes in Europe, North America, and Japan to Haystack for real-time correlation processing. This paper describes the application, the network technologies employed for the demonstration, the results, challenges and future work.
Keywords: Electronic very long baseline interferometry; e-VLBI; VLBI; Generalized multi-protocol label switching; GMPLS; RSVP; OSPF-TE; Light paths; Dedicated network resources; Deterministic network performance; iGRID; HOPI; DRAGON; UKLight; NetherLight; NorthernLight; JGN2
Article Outline
- 1. Introduction
- 2. The application: Radio astronomy and e-VLBI
- 2.1. The VLBI process
- 2.2. History of e-VLBI
- 3. The demonstration: Real-time, global e-VLBI
- 3.1. Dynamic LightPath services: The generalized multi-protocol label switching control plane
- 3.2. The network engineering: Marshalling network resources across the globe
- 4. Challenges and futures
- Acknowledgements
- References
- Vitae
