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Campus Focused Workshop on Advanced Networking

Campus Focused Workshop on Advanced Networking. Paul Love Chair, Topology Working Group Campus Workshop Houston 10-11 April 2002. Outline. Internet2 Engineering Objectives Hopes for & Threats to End-to-End Performance A few words on Abilene. Engineering Objectives of Internet2.

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Campus Focused Workshop on Advanced Networking

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  1. Campus Focused Workshop on Advanced Networking Paul Love Chair, Topology Working Group Campus Workshop Houston 10-11 April 2002

  2. Outline • Internet2 Engineering Objectives • Hopes for & Threats to End-to-End Performance • A few words on Abilene

  3. Engineering Objectives of Internet2 • Provide our members with superlative networking • Performance • Functionality • Understanding • Make superlative networking strategic to research & education

  4. End-to-End: Challenge, Aspirations & Threats • Support services of advanced networks E2E (eyeball2eyeball) • Performance • Current target: 80Mb/s across the country • Multiplies where possible • Functions • Multicast • IPv6 • Quality of Service • Measurement • Security

  5. What are our Aspirations? • Switched 100BaseT + well-provisioned Internet2 networking @ 80 Mb/s (for now) • But user expectations and experiences vary widely • Don’t take the easy way out • Boost expectations & experiences - raise the bar • Raise the bar again – work hard to stay out there

  6. Threats • Distance BW = C x packet-size / ( delay x sqrt(packet-loss ))(Mathis, Semke, Mahdavi, and Ott, CCR, July 1997) • Fiber: dirty connections, bad light/connectors • Switches: full/half duplex & 10/100 mismatches, head of line blocking • Routing: Asymmetric, increased distance • Provisioning: a “straw” somewhere • Host: OS & TCP stack, H/W, Apps

  7. Abilene: Current Core

  8. Abilene Network Map

  9. 09 January 2002 Sacramento Washington Los Angeles Abilene International Peering STAR TAP/Star Light APAN/TransPAC, Ca*net3, CERN, CERnet, FASTnet, GEMnet, IUCC, KOREN/KREONET2, NORDUnet, RNP2, SURFnet, SingAREN, TAnet2 Pacific Wave AARNET, APAN/TransPAC, CA*net3, TANET2 NYCM BELNET, CA*net3, GEANT*, HEANET, JANET, NORDUnet SNVA GEMNET, SINET, SingAREN, WIDE LOSA UNINET OC3-OC12 San Diego (CALREN2) CUDI AMPATH REUNA, RNP2 RETINA (ANSP) El Paso (UACJ-UT El Paso) CUDI * ARNES, CARNET, CESnet, DFN, GRNET, RENATER, RESTENA, SWITCH, HUNGARNET, GARR-B, POL-34, RCCN, RedIRIS

  10. Abilene: 10Gb/s Upgrade

  11. Raw HDTV/IP testing • Packetized raw HDTV (1.5 Gbps) • ISIe, Tektronix, & UW project/DARPA support • Connectivity and testing support • P/NW & MAX Gigapops, Abilene and DARPA Supernet, Level(3) • SC2001 public demo • November, 2001 • SEA -> DEN via L(3) OC-48c SONET

  12. Raw HDTV/IP Demo • DARPA PIs Meeting: SEA->DC area 1/6/02 • 18 hrs of continuous, single-stream raw HD/IP • UDP jumbo frames: 4444 B packet size • Application level measurement • 3 billion packets transmitted • 0 packets lost, 15 resequencing episodes • e2e network performance • Loss: <8x10 -10 (90% confidence level) • Reordering: 5x10 –9 • Transcontinental 1-Gbps TCP (std 1.5 kB MTU) requires loss at the level of 3x10 –8 or lower

  13. Where things are at Present • Infrastructure of large capacity • Besides the HDTV/IP demos we have examples of 240Mb/s flows • But flows aren’t predictable – even 40Mb/s • People don’t know what they should expect

  14. Why Care? • Faculty needs keep advancing: • Effective access to remote facility: quickly move large datasets. PPDG: 400 Mb/s to CERN by 2003 • Interactive access: video or control or VoIPVery low loss/jitter • We (in several senses) need to deliver • Low aspirations are dangerous to us, to our goals

  15. Baseline BW Requirements for the US-CERN Transatlantic Link With thanks to Harvey B Newman, CIT

  16. www.internet2.edu

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