1 CHEETAH's use of DRAGON DRAGON software (current usage) RSVP-TE for an end-host client VLSR for a CVLSR to support immediate-request calls DRAGON network.

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Presentation transcript:

1 CHEETAH's use of DRAGON 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 Malathi Veeraraghavan University of Virginia August 23, 2006

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

3 Circuit/Virtual-Circuit technologies eScience networksCommercial networks Raison d'etre High-throughput connectivity between a few facilities Moderate-throughput connectivity between millions of users Key goal QoS-guaranteed connectivity Bandwidth sharing (different style from TCP based sharing) Call duration Long-heldShort-duration ReachEnd-to-endPartial (HOV lanes)

4 My interest in moderate-BW applications/IR mode: SCALABILITY; Metcalfe's law re. value of networks 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 Short callsLong calls Bank tellerDoctor's office High throughput immediate-request with call blocking + retries ("call queueing") (video, gaming) immediate-request with delayed-start times (file transfers) book-ahead m is the link capacity expressed in channels e.g., if 1Gbps circuits are assigned on a 10Gbps link, m = 10 Bandwidth sharing modes

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 Raleigh PoP Control card OC192 card ORNL PoP Control card OC192 card SN16000 Control card OC192 card OC-192 End hosts Atlanta PoP SN16000 GaTech End hosts ORNL OC192 card NCSU OC192 card OC-192 (via NLR/SLR/NCREN) UVa CUNY OC192 card GbE

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

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