The Need for Application QoS.New Service Capabilities

• Distinct user classes

  • Premium users vs. best effort
  • Paying users vs. free
  • Implicit user classes: event triggered
  • this is not a democracy

• Application classes

  • SLAs
  • Server consolidation
  • all applications are not created equal

Application’s with poor QoS

• result in lost revenues

• tarnish a company’s image

• reduce repeat customers

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