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Internet-Scale Overlay Hosting Spiral 2 Year-end Project Review

Internet-Scale Overlay Hosting Spiral 2 Year-end Project Review. Washington University PI: Jon Turner (5%) and Patrick Crowley (5%) Staff : John DeHart (45%), Ken Wong (15%), Dave Zar (12%), Jyoti Parwatikar (0%) Students : Mike Wilson (0%), Mart Haitjema (0%) 8/30/2010.

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Internet-Scale Overlay Hosting Spiral 2 Year-end Project Review

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  1. Internet-Scale Overlay HostingSpiral 2 Year-end Project Review Washington University PI: Jon Turner (5%) and Patrick Crowley (5%) Staff: John DeHart (45%), Ken Wong (15%), Dave Zar (12%), JyotiParwatikar (0%)Students: Mike Wilson (0%), Mart Haitjema (0%) 8/30/2010

  2. Project Summary • Deploy five experimental overlay hosting platforms • located at Internet 2 PoPs • compatible with PlanetLab, moving to GENI control framework • performance characteristics suitable for service deployment • integrated system architecture with multiple server blades • shared NP-based server blades for fast-path packet processing • Demonstrate multiple applications • Provide ongoing operational support for deployed systems • Support development of a user community and provide ongoing support for user experiments • including development of new fastpath code options in partnership with users 8/30/2010

  3. Milestone & QSR Status 8/30/2010

  4. Milestone & QSR Status 8/30/2010

  5. Accomplishments 1: Advancing GENI Spiral 2 Goals • Support for continuous experimentation • deep programmability of SPPs for both the control and data planes of experimental nets • support for slicing – includes slicing of NP resources for high performance data planes • demonstrations to highlight SPP capabilities and refine our understanding of how they can best be used • user tutorials seek to build a user community and foster feedback that can guide future development • Support for measurement • SPPs provide support for real-time monitoring of running applications, revealing what happens ”under the covers” – essential for debugging and effective demonstrations • support researcher-driven data collection • Support for interoperability • broadly interoperable at the data plane – can support experiments that span PlanetLab, Vini, Emulab, ProtoGENI, Amazon EC2 and generally any internet-based device • construction of applications that span multiple testbeds does require interacting with multiple control mechanism – added time and effort is small fraction of that needed to construct application 8/30/2010

  6. Accomplishments 2:Other Project Accomplishments • Demonstrating potential for Internet-scale overlay hosting • while prototype is quite small, it is architected for scalability • multiple components communicating through a high performance switching layer • generic data plane interface which is broadly interoperable and hides internal details • unified control interface, which hides internal structure from applications and external control elements • support for effective traffic isolation and advance resource reservation • Such scalability is essential to a future “Version 1” of GENI • objectives include support for >100K real users running advanced applications over networks supported by GENI infrastructure • will need backbone nodes with IO bandwidths of at least 50-100 Gb/s and 50-100 processing components • will need better support for scalable overlay routers that use many processing components at each site 8/30/2010

  7. Plans • Plans for the remainder of Spiral 2 • improve operational stability of SPPs • prepare demonstrations and tutorial for GEC9 • deploy remaining nodes in Atlanta and Houston • Plans for last year of project • support ongoing operation of SPP nodes • continue to build user community through demos and tutorials at GECs 9, 10 and 11 • continue to add material to the SPP wiki pages • work with users on new NPE code options • complete development of flow monitoring subsystem to prevent abuse of SPPs • complete and deploy version 2 of the NPE fastpath software – support for 10 Gb/s operation and multicast packet forwarding • Things we still hope to accomplish • multi-node resource reservation • integration of testbed control with GENI control framework • transfer operational control to GMOC • develop control software to support NetFPGAs 8/30/2010

  8. Issues/Concerns • Internet 2 pullback of support for the backbone • undermines our core objective of demonstrating internet-scale overlays • and raises doubts about the credibility of the whole GENI enterprise • Lack of engagement of GPO on a technical level • have yet to have a GPO staff member ask a technical question about the SPPs that reflects an informed understanding • no GPO staff member has attended an SPP tutorial, asked for an account or tried to use the SPPs for a simple experiment • Uncertainty over future of GENI • hard to avoid feeling that we’re just going through motions until the funding runs out • does GENI have a real future? should it? • What is being done to attract application developers to GENI? • internet-scale activities require real users, not just networking researchers • users are attracted by applications, not networking technicalities • need more emphasis on network services that enable new apps, not just low level performance refinements 8/30/2010

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