layering

layering - Layered architectures Diverse applications TCP...

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Layered architectures Diverse applications TCP IP MAC Switch Pt to Pt Pt to Pt Physical
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Networked embedded layered Embedded virtual Controller actuator/ sensor App Physical plant Lib Lib DIF Network cable
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Meta-layering of cyber-phys control Embedded virtual Controller actuator/ sensor Physical plant DIF Network cable
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Layered architectures Physiology rgans Organs Cells
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Layered architectures Physiology rgans Organs Cells
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Meta-layers Physiology Prediction tex rgans Goals Actions ctions Cor t Organs Actions rrors errors
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Dale Purves
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the brain: In the brain: Don’t cross layers
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Meta-layers Physiology Prediction From formation to rgans Goals Actions Actions Information to “Outformation” to “ ctformation” Organs Actformation ? rrors errors
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Meta-layers Physiology rgans Organs Cells
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Hard layering st Fast Computationally complex Hidden, inaccessible Specific
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Slow, road Meta-layers Broad scope Fast, imited Limited scope Unfortunately, we’re not sure how this all works.
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Slow, Broad slow Faster, Broader? st Fast, Limited arrow fast road narrow broad scope
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Infrastructure networks? • Power ransportation • Transportation • Water aste All examples of “bad” architectures: • Waste • Food ealthcare • Unsustainable • Hard to fix Healthcare • Finance Where do we look for “good” examples?
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formative case studies in architecture Informative case studies in architecture • Internet and related technology (OS) gy ( ) • Systems biology (particularly, bacterial biosphere) •S ystem medicine and physiology • Ecosystems (e.g. So Cal wildfire ecology) • Aerospace systems • Electronic Design Autom. (Platform Based Design) • Multiscale physics (turbulence, stat mech) • Misc: buildings/cities, Lego, clothing/fashion, barter/markets/money/finance, social/political
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• Successful architectures • Robust, evolvable • Universal, foundational • Accessible, familiar • Unresolved challenges • New theoretical frameworks oringly retro? • Boringly retro? Simplest case studies Internet Bacteria
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athways (Bell) Phone ystems ayers (Net) Pathways (Bell) Communications systems Layers (Net) Computer Diverse applications Ancient network architecture: Operating systems “Bell-heads versus Diverse hardware Net-heads”
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Modern theory and the Internet Levels of nderstanding Topics Verbal/cartoon understanding Traffic Data and statistics Topology Modeling and simulation Control and dynamics Analysis Layering rchitecture Synthesis Architecture
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Recent progress (1995-) raffic opology &D ayering rchitect Traffic Topology C&D Layering Architect. Cartoon ? Data/stat Mod/sim Analysis Synthesis
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Recent progress raffic opology &D ayering rchitect Traffic Topology C&D Layering Architect. Cartoon Data/stat Mod/sim Analysis Synthesis
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Application Architecture is not graph CP topology.
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This note was uploaded on 01/04/2012 for the course CDS 212 taught by Professor Tarraf,d during the Fall '08 term at Caltech.

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layering - Layered architectures Diverse applications TCP...

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