Copyright AARNet 20051 4 th eVLBI Workshop: International Infrastructure George McLaughlin Director, International Developments AARNet.

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Presentation transcript:

Copyright AARNet th eVLBI Workshop: International Infrastructure George McLaughlin Director, International Developments AARNet

Copyright AARNet Massive increase in International connectivity Why?

Copyright AARNet Lightpaths for Massive data transfers From CANARIE A small number of users with large data transfer needs can use more bandwidth than all other users

Copyright AARNet Three paths from Australia Southern Cross Australia Japan Cable SEAMEWE3 or New Cable APCN2

Copyright AARNet Trans Eurasian Information Network (TEIN2) Partners An initiative of the European Commission with the objective of improving connectivity in certain developing countries of the Asia Pacific region Beneficiaries: China (CERNET) Indonesia (ITB) Malaysia (MDC) Philippines (ASTI) Thailand (ThaiREN) Vietnam (MOST) Non-beneficiaries: Korea (KISDI) Singapore (SingAREN) Australia (AARNet) France (RENATER) Netherlands (SURFnet) UK (UKERNA)

Copyright AARNet TransLight Pacific Wave Partners: AARNet, CENIC, Pacific Wave, University of Hawaii Distributed International Peering Exchange along US West Coast Hybrid Optical Packet Infrastructure Seed Global Astronomy Initiative based around the international telescopes at Mauna Kea, Hawaii GLIF infrastructure between US, Hawaii and Australia An initiative of the US National Science Foundation’s International Research Network Connections Program

Copyright AARNet AARNet, Pacific Wave, NLR,.……..

Copyright AARNet User Controlled Light Paths Techno speak for end user created dedicated Gigabit Ethernets Could be across the campus or across the world Various organisations working on creating the point and shoot interface

Copyright AARNet Why? Cees de Laat classifies network users into 3 broad groups. –Lightweight users, browsing, mailing, home use. Who need full Internet routing, one to many; –Business applications, multicast, streaming, VPN’s, mostly LAN. Who need VPN services and full Internet routing, several to several + uplink; and –Scientific applications, distributed data processing, all sorts of grids. Who need very fat pipes, limited multiple Virtual Organizations, few to few, peer to peer. Type 3 users: High Energy Physics Astronomers, eVLBI, High Definition multimedia over IP Massive data transfers from experiments running 24x7

Copyright AARNet AARNet Perspective Utilise the AARNet3 Optical network Need “excess” edge interfaces accessible to end users Share “excess” trunk capacity Seeding idea with researchers and educators

Copyright AARNet What would the user see? Ideal case is a web form –Source interface –Destination interface –Timing information –“Make it so” button Current version more hands on – exchanges –Possibly physical patching of circuits

Copyright AARNet What is the GLIF? Global Lambda Infrastructure Facility - International virtual organization that supports persistent data-intensive scientific research and middleware development Provides ability to create dedicated international point to point Gigabit Ethernet circuits for “short term” experiments AARNet is Australia’s participant

Copyright AARNet Huygens Space Probe Cassini spacecraft left Earth in October 1997 to travel to Saturn On Christmas Day 2004, the Huygens probe separated from Cassini Started it’s descent through the dense atmosphere of Titan on 14 Jan 2005 Using this technique 17 telescopes in Australia, China, Japan and the US were able to accurately position the probe to within a kilometre (Titan is ~1.5 billion kilometres from Earth) Very Long Baseline Interferometry (VLBI) is a technique where widely separated radio- telescopes observe the same region of the sky simultaneously to generate images of cosmic radio sources

Copyright AARNet AARNet - CSIRO ATNF contribution Created “dedicated” circuit The data from two of the Australian telescopes (Parkes [The Dish] & Mopra) was transferred via light plane to CSIRO Marsfield (Sydney) CeNTIE based fibre from CSIRO Marsfield to AARNet3 GigaPOP SXTransPORT 10G to Seattle “Lightpath” to Joint Institute for VLBI in Europe (JIVE) across CA*net4 and SURFnet optical infrastructure

Copyright AARNet AARNet - CSIRO ATNF contribution The data was transferred at an average rate of 400Mbps 1Gbps path was available, TCP stack tuning important The data from these two telescopes were reformatted and correlated within hours of the end of the landing Boosted the profile of eVLBI 9 organisations in 4 countries involved in “making it happen” VLBI Fringes

Copyright AARNet International path for Huygens transfer

Copyright AARNet Using the Infrastructure “Big” science High Energy Physics and the Large Hadron Collider Astronomy – EXPReS and the Square Kilometre Array

Copyright AARNet Large Hadron Collider Working with Geoff Taylor’s High Energy Physics Group – UniMelb Australia will be a Tier2 Site The worlds largest data generating source – Terabytes/sec 28km circumference underground tunnel – particle collisions expected to find new sub-atomic matter

Copyright AARNet EXPReS and Square Kilometre Array SKA bigger data generator than LHC But in a remote location Australia one of countries bidding for SKA – significant infrastructure challenges AARNet and CSIRO ATNF partners in Eu Commision funded EXPReS project to link 16 radio telescopes around the world at gigabit speeds

Copyright AARNet In Conclusion Astronomers and network engineers working together can exploit the new opportunities that high capacity networking opens up for radioastronomy The SKA provides a great opportunity as the next “big science” project EXPReS is a valuable precursor to the SKA