Potential Uses of
UKLIGHT
Saleem Bhatti
Computer Science
University of St. Andrews
Joe Sventek
Computing Science
University of Glasgow
http://www.dcs.st-andrews.ac.uk/~saleem/
http://www.dcs.gla.ac.uk/people/personal/joe/
Computer Science
St. Andrews
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Research Uses for
UKLIGHT?
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The current connectivity
Research drivers
Changes to the network
Research
Going forward
Computer Science
St. Andrews
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The current connectivity
Research drivers
Changes to the network
Research
Going forward
Computer Science
St. Andrews
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UKLIGHT - now
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High speed:
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10Gb/s national ‘core’
Links at 1Gb/s, 2.5Gb/s and 10Gb/s
International connectivity - 10 Gb/s to GLIF:
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Chicago (StarLight)
Amsterdam (NetherLight)
Computer Science
St. Andrews
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Current Usage
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Applications work:
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ESLEA: physicists, chemists, bio/medical
Other projects, e.g. RealityGrid, Int. Biology
Systems and engineering work:
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MASTS: measurement and monitoring
46PaQ: protocols, performance and QoS
Computer Science
St. Andrews
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The current connectivity
Research drivers
Changes to the network
Research required
Going forward
Computer Science
St. Andrews
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Change - the drivers for
future research
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Users:
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change in research usage - e-Research
change in levels of online collaboration
Network:
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change in the network landscape
change in network provisioning
Computer Science
St. Andrews
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Users
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Research users from many disciplines:
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not just Computer Scientists & Engineers
Using the network for collaboration:
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virtual organisations
Large data sets:
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data distribution and access
Computer Science
St. Andrews
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Network landscape
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Change in the network landscape:
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end-system
access
core
Computer Science
St. Andrews
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The current connectivity
Research drivers
Changes to the network
Research required
Going forward
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St. Andrews
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Network traffic [1]
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~1990 (ARPANET ceases to exist):
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end-system: 10Mb/s shared
access: 10s of Mb/s (some 100Mb/s)
core: 10s of Mb/s or 100s of Mb/s
Low levels of inter-site traffic
Computer Science
St. Andrews
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Network traffic [2]
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~Now:
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end-system: 1Gb/s (10Gb/s on its way)
access: 100s of Mb/s and several Gb/s
core: a few 10s of Gb/s (100s of Gb/s)
Large amounts of inter-site traffic
More contention in the network?
Computer Science
St. Andrews
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Network provisioning
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Change in network provisioning:
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traffic profiles
engineering
Computer Science
St. Andrews
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Traffic profiles
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Many different applications
Real-time:
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e.g. video, audio
Mass, distributed data
Remote access
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St. Andrews
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Engineering
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Engineering for Users
Differing viewpoints
Differing requirements
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Same network
Everyone happy?
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St. Andrews
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The current connectivity
Research drivers
Changes to the network
Research required
Going forward
Computer Science
St. Andrews
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Research issues [1]
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The control plane:
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control at various timescales
Adaptable protocols and applications:
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make best use of capacity
Adaptable network services & components:
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present new services quickly
Computer Science
St. Andrews
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Research issues [2]
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Network monitoring and management:
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large-scale, network wide resource control
Support for system virtualisation:
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virtual networks and organisations:
Optical control and routing:
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dynamic provisioning & traffic engineering
Computer Science
St. Andrews
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Research issues [3]
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Network monitoring and measurement
Performance analysis
Transport protocols
Security
Authorisation, Authentication, Accounting
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St. Andrews
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The current connectivity
Research drivers
Changes to the network
Research
Going forward
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St. Andrews
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What the users want
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The use and need for high-speed networking
is increasing
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Increasing numbers of users:
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mathematical, physical & medical sciences
social sciences
arts and humanities
It is not yet clear how we deliver!
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St. Andrews
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Key issues
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Networked systems research for high-speed
Collaboration:
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this is a large research space
Involve users
Work with industry
Must meet the requirements progressively
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St. Andrews
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Questions
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St. Andrews
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