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GENI Network Stitching Sites

Last update: 2013-12-16

The following 11 sites have been tested and are available for GENI Network Stitching experiments:

Site Name Site Nickname Sample Stitching RSpecs
GPO ExoGENI gpo-eg here
GPO InstaGENI gpo-ig here
Mid-Atlantic Crossroads (MAX) InstaGENI max-ig here
NYSERNet InstaGENI nysernet-ig here
University of Illinois illinois-ig here
University of Kentucky ProtoGENI uky-ig here
University of Missouri InstaGENI missouri-ig here
University of Utah Downtown Data Center InstaGENI utahddc-ig here
University of Utah InstaGENI utah-ig here
University of Utah ProtoGENI utah-pg here
University of Wisconsin wisconsin-ig here

Stitching is possible between all of the above InstaGENI and ExoGENI sites including between co-located sites such as ExoGENI GPO to InstaGENI GPO. Testing has verified most point-to-point combinations for the sites listed above. Only one combination that does not work at this time: GPO ExoGENI to PG UKY. For an example experiment that uses GENI Network Stitching feature see this GENI Network Stitching Example page.

You may used any of the sample Stitching RSpecs referenced by this page. To modify an RSpec example to use a different site simply do the following:

  1. In the node definition replace the URN for the component_manager_id with the URN for your site.
  2. In the link definition replace the name of the component_manager with the URN for your site.
  3. Modify all instance of the client_id and source_id or dest_id to be descriptive for your site.

Stitching Notes:

  • All existing compute resource (raw-pc, openVZ, Xen) are supported in stitched slivers.
  • Testing has verified most combinations for the sites listed, there is only one combination that does not work at this time GPO ExoGENI to PG UKY.
  • To run stitching scenarios without the ExoSM for the GPO ExoGENI rack use the stitcher option --noExoSM. If this option is not specified, than the request is submitted to the ExoSM aggregate.
  • Stitching RSpecs that include raw-pc must specify a capacity.

Additional Stitching Topologies

Some more complex topologies have been also tested and those RSpecs are provided here as examples that can be referenced and modified to used other sites:

Topology Description Sites in topology RSpec
Three nodes linear GPO IG <-> Utah PG <-> Utah IG stitch-3linear.rspec
Triangle topology Utah PG<->UKY PG<-> GPO IG <-> Utah PG stitch-triangle.rspec
Star topology Center=UtahDDC IG; Outer=UKY PG, Utah PG, Utah IG, GPO IG stitch-star-ddc.rspec

Warning: GENI Network Stitching is actively being developed and tested, which may make the Network Stitching feature unreliable for experiments.

If additional help is needed please contact