wiki:GeniNetworkStitchingConfirmationTests

Version 17 (modified by lnevers@bbn.com, 5 years ago) (diff)

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New Site GENI Stitching Confirmation Tests

Upon completion of the InstaGENI Confirmation Tests or ExoGENI Confirmation Tests for a new GENI Rack site, the GPO also completes a series of GENI Network Stitching Confirmation Tests to validate supported stitching topologies for the GENI site. These Stitching confirmation tests verify experimenter ability to stitch network resources and the the ability to monitor the topology when possible. All stitching experiments defined in this plan assume that Omni tools are used for all AM API operations. See the New Site Stitching Confirmation Tests Status page for details about sites that have been tested.

For each topology outlined on this page, omni tools will be used to request and manage resources, once the resources are available some performance statistics will be collected using for UDP, TCP and ICMP traffic.

InstaGENI Stitching Test Topologies

The InstaGENI (IG) Stitching Tests (ST) verify some basic topologies that are common to all rack types, but it is expected that network access will vary across rack types. Therefore, a set of tests is defined for each rack type.

IG-ST-1 New Site to GPO IG topology

A stitching test between the new site and the GPO IG rack will be performed for each network path available at the new site. For example, if the site is connected to both ION and AL2S, two separate tests will be run to verify that both paths can be requested and used between the two Xen VMs at each site. This is the ION topology that will be verified:

If the New IG site is connected to AL2S, then it will be connected to another AL2S site first to verify basic connectivity:

Once basic AL2S connectivity it verified, the New IG site is then connected via AL2S and ION to the the GPO IG site as shown in the following topology:

For each stitching path tested in this test case, performance data will be captured between the New IG Site and GPO IG for TCP, UDP and ping statistics.

IG-ST-1a New Site to GPO IG OpenFlow topology

Note: Test was modified to use dedicated hosts (raw-pcs) to collect performance data.

IG-ST-2 New Site to GPO IG Loop topology

A stitching test between the new site and the GPO IG rack will be performed which uses two stitched links between the 2 sites sites using OpenVZ VMs:

If the New IG site is connected to AL2S, then it will be connected to another AL2S site rather than the GPO IG ION site.

IG-ST-3 New Site 3 node linear topology

A stitching test that uses the new site as an intermediate hop in a linear topology between an ION and an AL2S site:

IG-ST-4 New Site to GPO EG interoperability

A stitching test between the new site and the GPO EG rack will be performed for each network path available at the new site. For each stitching path tested in this test case, performance data will be captured between the New IG site and GPO EG for TCP, UDP and ping statistics.

If the New IG site is connected to AL2s and the GPO EG is connected to ION, the following topology will be verified:

Note: Test was modified to use dedicated hosts (raw-pcs) to collect performance data. Also plan to switch the ExoGENI host to bare metal, when stitching to bare metal is supported.

IG-ST-5 Site Information

As part of the Site Stitching verification, the following will take place:

  • Verify new site has stitching VLAN and Device URN information in the InstaGENI Aggregate page.
  • Verification that Delegated GENI Stitching VLANs for site are documented here.
  • Review Stitching Computation Service logs during each test case.
  • Record test status and results on the stitching test status page.
  • Upon completion, add site to the list of GENI Network Stitching Sites.

ExoGENI Stitching Test Topologies

The ExoGENI (EG) GENI Stitching Tests (ST) are intended to verify the same basic topologies that are verified for InstaGENI, but it is expected that network access will vary significantly at ExoGENI sites. Therefore ExoGENI tests will be specifically defined for each site, at least for the first few EG racks we test. Check the stitching test status page for information on a particular EG rack.

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