University of Kansas Electrical Engineering & Computer Science

Sample Network Simulation Models using Extend

Useful Useful Extend videos and tutorials from Extend start-up screen

• Building Extend Models
  • Step 2
  • Step 3
• Example Networks
  • Simplified Model of Router Output Port-Statistical Mux
  • Example Network with Layers 1, 2, and 3 (two DEC's)
• Basic Markov Processes
  • Arrival Process
• Birth-Death Process (Average Number in System)
• Statistical Multiplexer (Average Delay)
• Statistical Multiplexer Delay and Number in System
• Tandem queues: Packet and SI Service Times
• Statistical Multiplexers-Infinite System Size
  • Statistical Multiplexer-Delay vs Load Study (Example of Use of Extend Database and Write to Excel)
  • Statistical Multiplexer-Confidence Interval Using Replication
  • Statistical Multiplexer-Confidence Interval Using Batch Means
• Demonstration of Capacity Sharing
  • Three Sources with Three isolated l Statistical Multiplexer
  • One Link Three Sources Statistical Multiplexer
• Finite Systems
  • Statistical Multiplexer with Finite Buffer -M/M/1/N (router output port model)
  • Statistical Multiplexer with Finite Buffer with Throughput Measurement (M/M/1/N)
  • M/M/K Model (Call center model: showing each server)
  • M/M/K Model with general number of servers
  • Circuit Switch Blocking Model -M/M/K/K Detailed showing blocking process
  • General Circuit Switch Blocking M/M/K/K
• Queue Management/Scheduling
  • AQM with Non-preemptive Priority or FIFO
  • Statistical Multiplexer with Non-Preemptive Priority
  • Weighted Round Robin Scheduling with Two Traffic Sources
  • Weighted Round Robin Scheduling with Three Traffic Sources
• Data Link Control Protocols
  • Sliding Window Data link Control Protocol
  • Token Bucket Rate Open Loop Rate Control
  • Stop and Wait Data Link Control Protocol with Errors and Fixed Length Packets and No Packet Queue
  • Stop and Wait Data Link Control Protocol with Fixed Length Packet, Errors, and Packet Queue
  • Selective Repeat ARQ Model With Errors
• Token Ring
  • Token Ring Model
  • Token Ring with Exhaustive Service
  • Token Ring serving all waiting upon arrival
• Networks of Queues
  • Model of Two Node Open Network
  • Model of a Computer System-Open Network
  • Model of a Computer System-Closed Network
  • Model of a Cyclic Queueing System-Closed Network
• Advanced Monels
  • Two State Discrete Time Markov Chain
  • Three State Discrete Time Markov Chain
  • Pareto_Message_Length_Example
  • Two State MMPP Model
  • Three State MMPP Model

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