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Internet2 Network of the Future

Explore the current state of Abilene and the evolution of optical networking in this presentation by Steve Corbató. Learn about the next phase of Abilene and how it enables innovative applications and services. Discover the milestones and status of Abilene in November 2001.

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Internet2 Network of the Future

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  1. Internet2 Network of the Future By Steve Corbató Director, Backbone Network Infrastructure Presented by Ana Preston Program Manager, International Relations CUDI Reunión de Otoño Guadalajara 13 November 2001

  2. Internet2 Network of the Future • Current state of Abilene • Evolution of optical networking • Next phase of Abilene

  3. Abilene background & milestones • Abilene is a UCAID project in partnership with • Qwest Communications • Nortel Networks • Cisco Systems • Indiana University • ITECs in North Carolina and Ohio • Timeline • Apr 1998: Project announced at White House • Jan 1999: Production status for network • Oct 1999: IP version of HDTV (215 Mbps) over Abilene • Apr 2001: First state education network added • Jun 2001: Participation reaches all 50 states & D.C. • Nov 2001: Raw HDTV/IP (1.5 Gbps) over Abilene

  4. Abilene focus • Enabling innovative applications and services not possible over the commercial Internet • Advanced service efforts • Multicast • IPv6 • QoS • Measurement • Security • DDoS detection efforts (Arbor Networks & Asta Networks)

  5. Abilene status – November, 2001 • IP-over-SONET (OC-48c) backbone • 54 direct connections • 3 OC-48c (2.5 Gbps) connections • 22 will connect via at least OC-12c (622 Mbps) by year end • 200+ primary participants • All 50 states, District of Columbia, & now Puerto Rico • 15 regional GigaPoPs support ~70% of participants • 37 sponsored participants • 15 state education networks (SEGPs) • Collaboration of sponsoring member universities and Abilene connectors

  6. International peering • Transoceanic R&E bandwidths growing! • Key international exchange points facilitated by Internet2 membership and the U.S. scientific community • STARTAP  STAR LIGHT – Chicago • Pacific Wave – Seattle • AMPATH – Miami • New York City – EP under development • CUDI - CENIC and Univ. of Texas at El Paso • International transit service

  7. StarLight (UIC/Northwestern/Argonne) • StarLight is an advanced optical infrastructure and • proving ground for network services optimized for • high-performance applications 710 N. Lake Shore Drive, Chicago Abbott Hall, Northwestern University Chicago view from 710 Source: Tom DeFanti, UIC

  8. Measurement and DDoS • Traffic characterization (Ohio ITEC) • Network utilization by SEGPs and Abilene ITN • Abilene Scavenger Service policing • GigaPoP pair hotspot identification • Passive measurement • Planned for Indy router backbone links • Collaboration with SDSC • Distributed Denial of Service detection • Strong IU Global NOC interest • Asta Networks (UCSD/U of Washington roots) • Arbor Networks (U of Michigan/Merit roots) • Data privacy and anonymity policy

  9. Network of the Future:Context for the next backbone • Computational science as an emerging interdisciplinary field • Bandwidth and distributed sensing capability as the next critical parameters • Complement CPU, memory & storage • Increasingly distributed data collection and storage • NSF Distributed Terascale Facility solicitation • Emergence of optical technologies • Dense Wave Division Multiplexing (DWDM) • Important distinction: optical transport vs. switching • Much new transcontinental conduit and fiber in place; a lot of business plans abandoned… • Glut of fiber & conduit – but not bandwidth

  10. TeraGrid Wide Area Network - NCSA, ANL, SDSC, Caltech StarLight International Optical Peering Point (see www.startap.net) Abilene Chicago DTF Backplane (4x: 40 Gbps) Indianapolis Urbana Los Angeles Starlight / NW Univ UIC San Diego I-WIRE Multiple Carrier Hubs Ill Inst of Tech ANL OC-48 (2.5 Gb/s, Abilene) Univ of Chicago Indianapolis (Abilene NOC) Multiple 10 GbE (Qwest) Multiple 10 GbE (I-WIRE Dark Fiber) NCSA/UIUC • Solid lines in place and/or available by October 2001 • Dashed I-WIRE lines planned for summer 2002 Source: Charlie Catlett, Argonne

  11. DWDM system components • Multiplexing terminals • 80-160 ’s per fiber pair • Amplifiers • All optical (OO) • Needed every ~100 km • Regenerators • OEO – electronic signal processing • Long haul (LH): needed every ~500 km • Ultra long haul (ULH): needed only every ~2500+ km • Organizational scale correspondence (LH) • Metro (campus): no amplifiers • Regional (GigaPoP): no regenerators • National (backbone): regenerators or ULH needed • Ren

  12. Current state of optical networking • Dense Wave Division Multiplexing (DWDM) • Current systems can support >160 10-Gbps ’s (1.6 Tbps!) • Optical growth can overwhelm Moore’s Law (routers) • Costs scale dramatically with distance • Three possible scenarios for the future • Enhanced IP transport (higher BW and circuit multiplicity) • Fine-grained traffic engineering • p2p links between campuses, HPC centers, & Gigapops • Physical manifestation of switched circuits (a la ATM SVCs) • Evolution of optical switching will be critical • Leading international efforts in R&E exploration • The Netherlands, Canada, STAR LIGHT (Chicago)

  13. National optical networking options • 1 - Incremental wavelengths • Provision 10-Gbps ’s from provider(s) in the same way that SONET circuits are done for Abilene now • Exploit smaller incremental cost of additional ’s • 2 - Dim Fiber • Acquisition of fiber IRU and subsequent O&M agreement for inter-PoP services (amps, regens, DWDMs?) • National footprint of 1-2 fiber pairs • IRU would cost $10-20M • Most likely awaits the development of lower-cost optical transmission equipment

  14. Future of Abilene • Original UCAID/Qwest MoU amended on October 1, 2001 • Extension of Qwest’s original commitment to Abilene for another 5 years – 10/01/2006 • Originally expired March, 2003 • Upgrade of Abilene backbone to optical transport capability - ’s • x4 increase in the core backbone bandwidth • OC-48c SONET (2.5 Gbps) to 10-Gbps DWDM • Capability for flexible provisioning of ’s to support future point-to-point experimentation & other projects

  15. Key aspects of the next backbone • IPv6 • Running natively concurrently with IPv4 • Replicate multicast deployment strategy • Motivations • Resolving IPv4 address exhaustion issues • Preservation of the original End-to-End Architecture • International collaboration • Router and host capabilities • Close collaboration with Internet2 IPv6 Working Group • Network resiliency • MPLS/TE fast reroute or IP-based IGP fast convergence • Opportunity for new measurement capabilities • Support of End-to-End Performance Initiative

  16. Next generation network deployment • October, 2001: Detailed technical design starts • February, 2002: PoP upgrades start • deployment in three phases • April, 2002 – Phase 1 • October, 2002 – Phase 2 • April, 2003 – Phase 3 • October 2003 - Completion of 10-Gbps upgrade

  17. Detailed technical design process • Qwest  service characterization • Interface selection: OC-192c POS likely • 10GE WAN/LAN PHY interesting alternatives • Next generation router selection • 10-Gbps interface selection • Native v6 routing and high-performance forwarding • Existing features: high-performance v4, ASM/SSM multicast & flow characterization • IPv6 coordination & planning

  18. Network design overview • Overall next generation topology is expected to be very similar to current design • Previous iterations to router locations • Washington DC, Chicago, Sunnyvale, Houston • Some differences expected due to Qwest DWDM deployment • Expect same number of backbone routers

  19. Optical fanout • Next generation architecture: Regional & state based optical networking projects are critical • Three-level hierarchy: backbone, GigaPoPs, campuses • CENIC ONI, I-WIRE, SURA Crossroads, Indiana, Ohio • Collaboration with the Quilt • Regional Optical Networking project • Carrier DWDM access is now not nearly as widespread as with SONET circa 1998

  20. The Quilt • A UCAID project support regional advanced networking initiatives • 15 charter GigaPoPs • EDUCAUSE and SURA • Quilt GigaPoPs support over 70% of Abilene participants • Initial projects • Commodity Internet Services • Regional Optical Networking • Measurement • Led by Wendy Huntoon (Pittsburgh SC)

  21. Conclusions • Abilene partnership with Qwest extended through 2006 • Backbone to be upgraded to 10-Gbps in three phases by late 2003 • Capability for flexible  provisioning in support of future experimentation in optical networking • Overall approach to the new technical design and business plan is for an incremental, non-disruptive transition

  22. For more information • Web: www.internet2.edu/abilene • E-mail: abilene@internet2.edu

  23. www.internet2.edu

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