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notes04 - TELCOM 2120 Comparing Systems via Measurements...

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1 TELCOM 2120 Comparing Systems via Measurements and Regression Joseph Kabara Department of Information Science and Telecommunications University of Pittsburgh Spring 2008, notes4 TELCOM 2120: Network Performance 2 Four basic types of measurement studies Four basic types of measurement studies 1. Statistical Characterization of metric Determine: call blocking at telephone switch, utilization of network links, bit error rate on link, etc. 2. Compare alternate system designs, equipment or parameter settings Benchmark routers from different vendors, compare different token rotation times in FDDI ring, compare RAS, etc. Types of Measurement Studies Types of Measurement Studies Spring 2008, notes4 TELCOM 2120: Network Performance 3 3. Predicting System Performance 3. Predicting System Performance Throughput and Delay increase if add 5 workstations to an Ethernet switch. End-to-end delay of virtual private network link in ISP backbone networks. 4. Parameterise analytical or simulation model or driving a simulation model Determining mean call holding times of phone calls for use in queueing model. Gather data to use as traffic source in computer simulation model of alternate network topologies. Types of Measurement Studies Types of Measurement Studies
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