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DTunnels Project Status Report: 2Q09

1. Major accomplishments

This report covers activity from April 1 to June 30, 2009.

1.1 Milestones achieved

We have achieved the following milestone:

  • DTunnel: BGP mux operations with PSGnet (Completed late 05/22/09)

2. Description of work performed during last quarter

2.1 Activities and findings

Our activities and findings include the following:

  • Deployment of BGP Mux at Additional Sites: PSGNet. With the help of Randy Bust at PSGNet, we have deployed a BGP Mux that has a direct layer 2 connection (via a VLAN) to the Wisconsin border router and can announce a /21 IP prefix via Wisconsin's upstream providers. Currently, we are unable to announce any prefix from this location because Randy has not updated his filters to allow our prefix announcements. This prompted us to update the IRR (below), but he has not yet updated his filters accordingly.
  • Registration of Route Objects at ARIN IRR. To ensure that the IP prefix can be announced from different upstream ISPs, we registered the both our temporary IP prefix and the GENI AS number (AS~47065) in the ARIN Internet routing registry.
  • Georgia Tech campus GENI network deployment. We continue to build a campus network deployment that can run enterprise-level experiments and use the BGP Mux as a means of getting upstream connectivity to and from these upstream ISPs.

Continued work on ongoing issues:

  • Integration of topology creation with upstream connectivity. We are working on developing a unified set of scripts or topology creation and creation of upstream connectivity.

2.2 Project participants

Professor Nick Feamster: PI
Vytautas Valancius: BGP Mux lead developer
Yogesh Mundada: DTunnels lead developer
[Both Valancius and Mundada are Ph.D. students at Georgia Tech.]

2.3 Publications (individual and organizational)

We published a writeup describing a demonstration of the BGP Mux and associated applications that could be run using the BGP Mux to SIGCOMM 2009:

Transit Portal: Bringing Connectivity to the Cloud
Vytautas Valancius, Yogesh Mundada, Nick Feamster, Jennifer Rexford, Akihiro Nakao

This writeup is available on the project wiki.

2.4 Outreach activities

None during this period.

2.5 Collaborations

  • Princeton University We are collaborating with Princeton on virtual network applications that can make use of the BGP session multiplexer. Notably, we have helped Princeton undergraduate student Patrick Wendell (working with Jennifer Rexford) to deploy an initial service that uses the BGP Mux.
  • University of Tokyo We are collaborating with University of Tokyo in an attempt to deploy the BGP Mux in that location. Graduate student Valas Valancius spent summer in Tokyo working with this team.

We have a planned collaboration with Jerry Sobieski at NordUNet planned for 4Q 2009.

2.6 Other Contributions

Testbed Network We are building out a campus network testbed for testing both DTunnels topology creation and BGP Mux on the campus network. The test network spans three buildings on campus and includes roughly ten servers and five OpenFlow-enabled switches. Although this testbed deployment is technically out of the scope of the original proposal, we intend to use it as a platform for using both BGP Mux and the DTunnels topology creation service.

Progress on this testbed during 2Q 2009 included deployment of several switches in one building on campus and provisioning of VLANs and fiber.