Modelling and Stability of TCP. Peter Key MSR Cambridge. Outline. Simple TCP models Utility Maximisation - a framework for fairness General Framework TCP examples Stability, Delay and Stochastic Stability Stochastic arrivals Multipath routing Startup / slow start. Outline.
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=utility – cost where
Elastic / Data
Share out bandwidth
Gain: tune for convergence / stability
- discrete time / simple models give insight
Per route increase (“aggressiveness)”
Per resource (price) sensitivity
Schedulable region depends on utility function
a loss of 30% efficiency.
For TCP, stable provided