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Jon Crowcroft |
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Jon@cs.ucl.ac.uk |
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inc |
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Application Level Programmable InterNetwork
Environment |
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BT funded work at IC, UCL, UTS, Lancaster and
Sussex |
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Collaborate with EU Android Project, and DARPA
Radioactive Project. |
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Platform called funnelWeb includes |
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Execution Environment for Proxylets |
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Toolbox of Proxylets |
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Infrastructure access – e.g. directory for
proximity, neighbour discovery, policy and metrics |
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JVM=Sandbox;EEP=Node;Plet=program |
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We’re not doing programmable packets |
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We’re not looking at IEEE Programmable Hardware |
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Although can interface to both: |
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Both
x-bone ISI work, and Lanode, Lancaster work have both been tried. |
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JVM is somewhat heavyweight awy of doing sandbox
– Sussex Safetynet work will sidestep this |
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Meanwhile, to trial things, want faster platform |
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Java threads and Multiple JVMs can exploit
parallelism – how best? |
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Services are built from multiple proxylets
(routelet, transcoder, encrypter, multicaster, pgm/rlc, ntp, etc etc). |
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Coarse grain CPU and resource management can
trade off load |
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Could look at “micro-proxylets” and threads |
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Prior work in HIPPARCH eval benefits and
pitfalls of micro and macro and intra and inter-protocol module parallelism |
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Need to look at classic tradeoffs: |
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Memory hierarchies in cluster computers –
locality and communications costs |
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Bus/Backplane overhead |
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Scheduler Costs (context switch etc) |
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Have cluster at UCL; one at DARPA (beowolf style
– I.e. linux/pc + Gbps) |
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Have idea and code |
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Have cluster in rack |
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Await new staff! |
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Need IPv6 capable JVM |
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Its research… |
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More flexible service deployment |
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Data plane processing for heterogeneous networks |
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Control Plane customisation (Virtual Networks) |
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Let researchers get back into the game… |
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Notes
