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CHEETAH's use of DRAGON

CHEETAH's use of DRAGON. Malathi Veeraraghavan University of Virginia August 23, 2006. DRAGON software (current usage) RSVP-TE for an end-host client VLSR for a CVLSR to support immediate-request calls DRAGON network (proposed work) Run web caches on DRAGON PoP hosts

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CHEETAH's use of DRAGON

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  1. CHEETAH's use of DRAGON Malathi Veeraraghavan University of Virginia August 23, 2006 • DRAGON software (current usage) • RSVP-TE for an end-host client • VLSR for a CVLSR to support immediate-request calls • DRAGON network (proposed work) • Run web caches on DRAGON PoP hosts • Interconnect CHEETAH to DRAGON network via IP routers

  2. GaTech 4. Immediate-request calls dynamically setup/released - distributed bandwidth management CHEETAH network 1. Build a scalable GMPLS network UVa 6. Web caching: Breaks up long TCP connection into two short TCP connections + one wide-area CHEETAH circuit Via Vortex/HOPI CUNY Raleigh PoP (MCNC) Via Nysernet/HOPI SN16000 via NCREN NCSU GbE/ 10GbE card OC192 card Control card End hosts 2. Circuit-requestor code implements RSVP-TE OC-192 (via NLR/SLR/NCREN) 3. Sycamore GMPLS implementation 1Gb/s circuit ORNL PoP Atlanta PoP (SOX/SLR) SN16000 SN16000 GbE/ 10GbE card Control card OC192 card GbE/ 10GbE card OC192 card Control card End hosts End hosts OC-192 5. Applications: eScience + commercial: web caching, video & storage ORNL

  3. Circuit/Virtual-Circuit technologies

  4. My interest in moderate-BW applications/IR mode: SCALABILITY; Metcalfe's law re. value of networks m is the link capacity expressed in channels e.g., if 1Gbps circuits are assigned on a 10Gbps link, m = 10 Bandwidth sharing modes • Mean waiting time is proportional to mean call holding time • Can afford to have a queueing based solution if calls are short Large m Moderate throughput Small m High throughput immediate-request with call blocking + retries ("call queueing") (video, gaming) Short calls Bank teller Long calls Doctor's office immediate-request with delayed-start times (file transfers) book-ahead

  5. Proposed DRAGON use for web caching • Would like to run squid web caching software on DRAGON and HOPI PoP hosts • First step: • Preconfigure VLANs and test web caching • Next step: • Run CVLSR or VLSR + CSPF PCE in hop-by-hop mode for short-lived, moderate-BW VLANs across DRAGON • Call setup delay with SNMP: 149ms; CLI adds 80ms (open SecureCRT) CUNY report • Demo/test: • Use circuits between web caches through just the DRAGON network

  6. CHEETAH evolution: add IP routers with channelized OCxx cards to support sub-Gb/s circuits UVa GbE CUNY Raleigh PoP GbE SN16000 GbE OC192 card Control card OC192 card NCSU GbE End hosts OC-192 (via NLR/SLR/NCREN) ORNL PoP Atlanta PoP SN16000 SN16000 GbE GbE OC192 card Control card OC192 card OC192 card Control card End hosts OC192 card End hosts OC-192 GbE GbE GaTech ORNL

  7. Web cache Web cache Web cache Proposed interconnection of CHEETAH to DRAGON & HOPI - via IP routers Web cache CLPK UMD DRAGON DCGW Web cache DCNE VLAN Web cache Web cache ARLG Web cache MCLN VLAN ISI East McLean, VA NC Web cache MPLS 10GbE Web cache CHEETAH SONET HOPI network: courtesy, Rick Summerhill DRAGON: courtesy, Jerry Sobieski TN GA

  8. Opportunity missed if the whole optical testbed community only experiments with BA • What opportunity? • Enable the creation of large-scale circuit/VC networks with moderate-rate circuits that can support a brand new class of applications • economic value for the telcom industry • A "reservations-oriented" mode of networking to complement today's connectionless Internet • ala airlines that complement roadways • Could prove useful to FIND, GENI, net-neutrality • Alternative pricing models for bandwidth

  9. What "brand new class of applications?" • Video, video, video: • Video-telephony, conferencing, elearning, entertainment, surveillance • Gaming • Remote software access + Sync. storage • Async storage • Multimedia (large) files in web sites

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