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StarLight: A GLIF Open Lightpath Exchange (GOLE) Presented to Quilt Peering Workshop

StarLight: A GLIF Open Lightpath Exchange (GOLE) Presented to Quilt Peering Workshop October 12, 2006 Linda Winkler (winkler@mcs.anl.gov). StarLight – “By Researchers For Researchers”.

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StarLight: A GLIF Open Lightpath Exchange (GOLE) Presented to Quilt Peering Workshop

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  1. StarLight: A GLIF Open Lightpath Exchange (GOLE) Presented to Quilt Peering Workshop October 12, 2006 Linda Winkler (winkler@mcs.anl.gov)

  2. StarLight – “By Researchers For Researchers” • an experimental optical infrastructure and proving ground for network services optimized for high-performance applications • a largeresearch-friendlyco-location facility with space, power and fiber that is being made available to university and national/international network collaborators as a pointof presence in Chicago Abbott Hall, Northwestern University’s Chicago downtown campus

  3. International Advanced Networks ASNet CANARIE CERN/LHCNET CERNET/NSFCNET CzechLight GLORIAD HARNET JGN-II KRLight NetherLight SINET TaiwanLight/TWAREN TransLight UKLight National and Regional Networks Abilene BOREAS CAVEwave DREN ESnet Fermi LightPath HOPI I-Light I-WIRE LONI MCNC/EnLIGHTened MiLR MREN National LambdaRail NISN OMNInet Southern Light Rail TeraGrid TransLight UltraScience Net USGS Wisc Wave Connected Networks

  4. Lambda Characteristics • Speed (1G, 10G, OC192) • Data Link Framing • OC192/WANPHY • Virtual concatenation schemes are used to manage bandwidth utilization • Generic Framing Procedure (GFP) defined in ITU-T G.7041 and ANSI T1-105.02 standards (frame-mapped or transparent) • Virtual Concatenation (VCAT) in STS-1/VC-4 increments • Link Capacity Adjustment Scheme (LCAS) • 10GE/LANPHY • Use VLANs to multiplex traffic

  5. Equipment Choices • L0 • Photonic Switch • L1 • Optical Cross Connect Box • L2 • Ethernet switch

  6. Engineering/Operational Issues • A L1 exchange requires a common framing protocol • A L2 exchange requires VLAN coordination • Private VLANs between consenting parties • Operationally difficult to monitor at multiple layers • Testing and debugging at L2 more difficult than L3 • Duty cycle of these connections vary widely • More churn than L3 peering relationships • Security considerations should not be ignored

  7. StarLight GLIF Resources http://www.glif.is/resources/starlight-topology.jpg

  8. StarLight GLIF Resources—The Details

  9. Multi-domain Lightpath

  10. GLIF Terminology

  11. Sourcing Organization • The organization given the responsibility by the end user to establish the lightpath is called the sourcing organization. • The sourcing org is responsible for identifying the necessary lightpath sections and getting the lightpath placed into service.

  12. Establishing a Multi-domain Lightpath

  13. Lightpath Contracting

  14. Lightpath Contracting (cont.)

  15. iGrid2005

  16. Network Description Engineering Reality-iGrid2005

  17. Network Description Language (NDL) • help to reduce the complexity issues in computer networks • goal is to allow applications to have a better understanding of the network so they can more easily adapt it to their needs • the need of a shared common vocabulary that describes networks is particularly important in optical networking, and specifically in facilitating the multi-domain provisioning of lightpaths http://trafficlight.uva.netherlight.nl/NDL-demo/

  18. NDL in GLIF • Having NDL files of each GOLE enables: • PATH discovery through the global GLIF network • Up to date overview of the GLIF resources • Automatically generate diagram of the GLIF network • Help with monitoring and fault isolation

  19. References • http://www.startap.net/starlight • http://www.startap.net • http://www.glif.is • http://trafficlight.uva.netherlight.nl/NDL-demo • http://www.glif.is/meetings/2006/winter/tech/hatem-fault-resolution.pdf • http://www.glif.is/meetings/2006/winter/joint-session/hatem-faq.pdf

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