Optical networks and evlbi
This presentation is the property of its rightful owner.
Sponsored Links
1 / 13

Optical Networks and eVLBI PowerPoint PPT Presentation


  • 84 Views
  • Uploaded on
  • Presentation posted in: General

Optical Networks and eVLBI. Bill St. Arnaud [email protected] CANARIE Inc.- Overview. Federal leadership: Concept born in 1990 out of Industry Canada discussions Founding : Incorporated in 1993 by industry and academia

Download Presentation

Optical Networks and eVLBI

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Optical networks and evlbi

Optical Networks and eVLBI

Bill St. Arnaud [email protected]


Canarie inc overview

CANARIE Inc.- Overview

  • Federal leadership:Concept born in 1990 out of Industry Canada discussions

  • Founding: Incorporated in 1993 by industry and academia

  • Funding: From Industry Canada: For networks and research applications from Canadian Heritage, HRDC, Health Canada

  • Mission: To facilitate development and use of Canada’s advanced communications infrastructure

  • Primary stakeholders: Government Departments, universities, provincial research networks, broader research community, colleges, carriers, IT sector, SMEs, broader education sector, broader health sector, provinces


Ca net 4 drivers application specific networks

CA*net 4 DriversApplication Specific Networks

  • Soon high end grid applications will have sufficient traffic volume to require their own underlay networks ”Complementing” routed networks

    • Not a replacement for routed networks – only increasing the direct peering mesh of the routed network for specific applications

    • But peering may be more dynamic (and not globally advertised) than traditional IP BGP peering

  • Discipline or applications specific networks

    • VBLI grids like European EVN

    • High energy physics grid – Ultralight

    • NEES grid, Bio-informatics Grid, etc


Evlbi driving network architectures

eVLBI driving network architectures

  • MERLIN in UK links several radio dish sites with optical fiber network

  • European EVN and LOFAR will built around optical lightpaths on GEANT network

  • In Canada eVLBI is mostly used for Geodetic applications

    • GPS corrections

    • Measuring movement of Canadian shield

  • DRAO (astronomical dish) will be soon connected to CA*net 4 network so that they can participate in global eVLBI


S2 vlbi space observatory

S2 VLBI Space Observatory


Example evn traffic flows over geant

NORDUnet

JANET

SURFnet

PSNC

DFN

GARR

Example – EVN traffic flows over GEANT

SE

UK

JIVE

PL

CZ

BE

NL

DE2

DE1

FR

CH

AT

2.5G

10G

IT

Provided courtesy of Dai Davies


Issues

Issues

  • How do you charge for bandwidth and usage when single application traffic dwarfs all other IP traffic?

  • Possible solutions:

    • GMPLS (with QoS)

      • Requires expensive routers and complex coordinated central management to setup and tear down tunnels

      • Interdomain still unproven

    • Optical overlay/underlay –ASON

      • same problems as GMPLS

    • Application specific UCLP networks

      • Increase BGP mesh for specific applications or disciplines


Uclp applied to evn

NORDUnet

JANET

SURFnet

PSNC

DFN

GARR

UCLP applied to EVN

Express route

SE

JIVE

UK

PL

CZ

BE

NL

DE2

DE1

FR

CH

AT

  • EVN sites will see 2 BGP routes to SURFnet:

  • the normal IP route over GEANT

  • Express route using dedicated lightpaths (in green)

IT


What is uclp

What is UCLP?

  • User Controlled LightPaths – a configuration and provisioning tool built around web services

  • Third party (e.g. eVLBI) can concatenate cross connects together from various networks to produce a wide are network that is under their control

    • Articulated Private Network (APN)

  • Uses Service Oriented Architecture (SOA) and so network can be integrated with other web service applications such as instruments and software correlators

  • Allows eVLBI users to change configuration and topology of the optical network to meet research needs


Glif links

GLIF links


Recommended browsing

Recommended Browsing

  • UCLP Roadmap Document

    • http://www.canarie.ca/canet4/uclp/UCLP_Roadmap.doc

  • LOOKING

    • http://lookingtosea.ucsd.edu/

  • NEESgrid Tele-Operation Network Protocol

    • http://it.nees.org/documentation/pdf/TR-2004-23.pdf

  • Common Instrument Middleware Architecture

    • www.instrument-middleware.org

  • EU GridCC

    • http://www.canarie.ca/conferences/advnet2004/ppt/maron.ppt

  • CABA open building interexchange web services for high voltage AC and building management systems

    • http://www.caba.org/councils/obix.html


  • Login