• Introduction • Economic principles • Traffic classes • Time scales • Mechanisms • Some open problems on traffic management

• Overview of QoS in IP networks • Integrated Service model (IntServ) • Resource Reservation Protocol (RSVP) • Differentiated Services model (DiffServ)

• Why Scheduling? • Problem Definition • Metrics and Requirements of Scheduling Discipline • Mechanisms to Create a Scheduling Discipline • Scheduling Disciplines for Best Effort Connections • Scheduling Disciplines for Guaranteed-service Connections • QoS Service curve model

• Why packet drop • Classification of drop strategies • IP Active Queue Management(AQM) - RED - FRED - BLUE - RIO • Case study: Performance of Selective Discard

• Review of TCP • TCP flow control and congestion control • TCP over wireless • Case study: New Snoop for TCP in Wireless networks Roadmap

 What and why is traffic shaping and traffic policing  Leaky Bucket  Token Bucket Traffic  Generic Cell Rate Algorithm (GCRA) -Virtual scheduling algorithm implementati - Leaky bucket algorithm implementation

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