OMNInet

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StarLight A GLIF Open Lightpath Exchange
(GOLE) Presented to Quilt Peering
Workshop October 12, 2006 Linda
Winkler (winkler_at_mcs.anl.gov)
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StarLight By Researchers For Researchers

• an experimental optical infrastructure and
  proving ground for network services optimized for
  high-performance applications
• a large research-friendly co-location facility
  with space, power and fiber that is being made
  available to university and national/international
  network collaborators as a point of presence in
  Chicago

Abbott Hall, Northwestern Universitys Chicago
downtown campus
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Connected Networks

• 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

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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

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Equipment Choices

• L0
• Photonic Switch
• L1
• Optical Cross Connect Box
• L2
• Ethernet switch

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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

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StarLight GLIF Resources
http//www.glif.is/resources/starlight-topology.jp
g
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StarLight GLIF ResourcesThe Details
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Multi-domain Lightpath
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GLIF Terminology
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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.

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Establishing a Multi-domain Lightpath
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Lightpath Contracting
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Lightpath Contracting (cont.)
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iGrid2005
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Network Description Engineering Reality-iGrid2005
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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/
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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

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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-sess
  ion/hatem-faq.pdf