WAN in Lab

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WAN in Lab

• Caltech John Doyle, Raj Jayaraman, George Lee,
  Steven Low (PI), Harvey Newman, Demetri Psaltis,
  Xun Su, Yang Xia
• Cisco Vijay Doraiswami, Chris McGugan, Charles
  Smith, Steven Yip

netlab.caltech.edu
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Key Personnel

• Steven Low, CS/EE
• Harvey Newman, Physics
• John Doyle, EE/CDS
• Demetri Psaltis, EE
• Cisco
• Vijay Doraiswami
• Chris McGugan
• Charles Smith
• Steven Yip

• Raj Jayaraman, CS
• George Lee, CS
• Xun Su, Physics
• Yang Xia, Physics
• 2 grad students
• 3 summer students
• Cisco engineers

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Spectrum of tools
log(cost)
log(abstraction)
math
simulation
emulation
live nk
WANiLab
we use them all
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Spectrum of tools
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Goal

• State-of-the-art hybrid WAN
• High speed, large distance
• 2.5G ? 10G
• 50 200ms
• Wireless devices connected by optical core
• Controlled repeatable experiments
• Reconfigurable evolvable
• Built in monitoring capability

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• WAN in Lab
• 5-year plan
• 6 Cisco ONS15454
• 4 routers
• 10s servers
• Wireless devices
• 800km fiber
• 100ms RTT

V. Doraiswami (Cisco) R. Jayaraman (Caltech)
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• Hybrid Network
• Scenarios
• Ad hoc network
• Cellular network
• Sensor network
• How optical core
• supports wireless
• edges?

X. Su (Caltech)
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Experiments

• Transport network layer
• TCP, AQM, TCP/IP interaction
• Wireless hybrid networking
• Wireless media delivery
• Fixed wireless access
• Sensor networks
• Optical control plane
• Grid computing
• UltraLight

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Unique capabilities

• WAN in Lab
• Capacity 2.5 10 Gbps
• Delay 0 100 ms round trip
• Delay 0 400 ms round trip
• Configurable evolvable
• Topology, rate, delays, routing
• Always at cutting edge
• Flexible, active debugging
• Passive monitoring, AQM
• Integral part of RA networks
• Transition from theory, implementation,
  demonstration, deployment
• Transition from lab to marketplace
• Global resource
• Part of global infrastructure UltraLight led by
  Newman

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Network debugging

• Performance problems in real network
• Simulation will miss
• Emulation might miss
• Live network hard to debug
• WAN in Lab
• Passive monitoring inside network
• Active debugging possible

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Passive monitoring
Fiber splitter

• No overhead on system
• Can capture full info at OC48
• UofWaikatos DAG card captures at OC48 speed
• Can filter if necessary
• Disk speed 2.5Gbps40/1500 66Mbps
• Monitors synchronized by GPS or cheaper
  alternatives
• Data stored for offline analysis

D. Wei (Caltech)
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Passive monitoring
Web100, MonALISA
Fiber splitter
Server
Server
D. Wei (Caltech)
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UltraLight testbed
UltraLight team (Newman)
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Status

• Hardware
• Optical transport design finalized
• IP infrastructure design finalized (almost)
• Wireless infrastructure design finalized
• Price negotiation/ordering/delivery summer 04
• Software
• Passive monitoring summer student
• Management software 2005 -
• Physical lab
• Renovation to be completed by summer 04

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Status
2007
2006
2005
2003
2004
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CS Dept Jorgensen Lab
WAN in Lab
G. Lee, R. Jayaraman, E. Nixon (Caltech)
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Summary

• Testbed driven by research agenda
• Rich and strong networking effort
• Integrated approach
• theory implementation experiments
• A network that can break
• Integral part of real testbeds
• Part of global infrastructure UltraLight led by
  Harvey Newman (Caltech)
• Integrated monitoring measurement facility
• Fiber splitter passive monitors
• MonALISA