Efficient gigabit ethernet switch models for large-scale simulation

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ethernet is the most widely implemented low-level networking technology used today, with Gigabit Ethernet seen as the emerging standard implementation. The backbones of many large scale networks (e.g., data centers, metro-area deployments) are increasingly made up of Gigabit Ethernet as the underlying technology, and Ethernet is seeing increasing use in dynamic and failure-prone settings (e.g., wireless backhaul, developing regions) with high rates of churn. Correspondingly, when using simulation to study such networks and applications that run on them, the switching makes up a significant fraction of the model, and can make up a significant amount of the simulation activity. This paper describes a unique testbed that gathers highly accurate measurements of loss and latency through a switch, experiments that reveal the behavior of three commercial switches, and then proposes simulation models that explain the observed data. The models vary in their computational complexity and in their accuracy with respect to frame loss patterns, and latency through the switch. In particular, the simplest model predicts a frame's loss and latency immediately at the time of its arrival, which keeps the computational cost close to one event per frame per switch, provides excellent temporal separation between switches (useful for parallel simulation), while providing excellent accuracy for loss and adequate accuracy for latency.

Original languageEnglish (US)
Title of host publication2010 IEEE Workshop on Principles of Advanced and Distributed Simulation, PADS 2010
Pages122-131
Number of pages10
DOIs
StatePublished - Jul 5 2010
Event24th Annual Workshop on Principles of Advanced and Distributed Simulation, PADS 2010 - Atlanta, GA, United States
Duration: May 17 2010May 19 2010

Publication series

NameProceedings - Workshop on Principles of Advanced and Distributed Simulation, PADS

Other

Other24th Annual Workshop on Principles of Advanced and Distributed Simulation, PADS 2010
Country/TerritoryUnited States
CityAtlanta, GA
Period5/17/105/19/10

Keywords

  • Measurement
  • Performance
  • Simulation
  • Switch modeling

ASJC Scopus subject areas

  • General Engineering

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