1. Process Gather Input – Today Form Coherent Consensus – Next two months

2. CENs are Personal Why are there so many electricity outages? Why did it take Amazon 4 days to recover from Amazon cloud failure? Why can’t I find out what’s wrong with my WiFi connection?

3. Mid Point Summary ALERT

A for Abstraction / Architecture Functionality allocation: How to understand modularization in networks? How to explain, predict, falsify? What’s a logical unit on the network? Graph clustering and dynamics aggregation Sufficient statistics for graphs Throughput < Delay < Security < Manageability What non-performance metrics to use as objective functions? Configuration complexity Fairness metrics Language and top down design of architecture decision Scalable experiments and experiments at scale State and awareness inside and outside of the network Manage the crowd in unlicensed band Approximate networks

L for Limits Characterize boundary of unknown behavior Queueing, graph, information theory often ask intractable questions. What questions should be asked? Non-convex optimization and local optima Distributed optimization over combinatorial structures with stochastic dynamics across multiple coupled timescales Long tail, non asymptotic results Integration: communication + computation + control

E for Evolvability Evolvability and scalability Theory for self correcting and under-specified networks Het-Net of platforms, applications, user behaviors Functional: Modularity, payoff/price of interface Spatial: Centralized or distributed? Right level of hierarchy? Economic incentive mechanisms Pricing as a way to run feedback

R for Robustness Diagnosability and rebootability Science of network management Simulations we can believe in? Experiment design Error bars Optimal but fragile solutions Sensitivity to configuration parameters How to characterize black swan events? Is there enough diversity for robustness? How to quantify security and privacy metrics? Low gain networks Black swan events Platform for unknown applications Safety Security Privacy first

T for Time Delay/deadline as objective functions How to enable interactive applications? Space doesn’t matter, time is tight. Delay much less understood than throughput. Transient behavior: from convergence to equilibrium to invariant states during transient How to carry out real time large-scale measurement, learning, visualization? Real time application is hard, real time management even harder Evolving graphs How to accelerate network evolution?