Netw 320 Lab 7

Daniel Lomo

NETW320, Winston Park

Current Date: 02/27/2013

Lab #7, CODEC Selection for a WAN

Lab Report

In the Results browser, expand FTP and select Download Response Time (sec). Change the view from As Is to time_average and select the Show button. Zoom in on the last two-thirds of the graph to eliminate start-up oscillation time and to get better granularity of the results. Copy and label this graph to your lab report. Then use this graph to answer the following questions.

1. For the G.711 run, estimate the FTP response time. 10.639701 seconds

2. For the G.729 run, estimate the FTP response time. 9.39911 seconds

3. For the G.723.1 run, estimate the FTP response time. 7.188336 seconds

Close the FTP tree. Expand E-mail and select Download Response Time (sec). Change the view from As Is to time_average and select the Show button. Zoom in on the last two-thirds of the graph to eliminate start-up oscillation time and to get better granularity of the results. Copy and label this graph to your lab report. Then use this graph to answer the following questions.

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4. For the G.711 run, estimate the E-mail Download response time. 3.63016 seconds

5. For the G.729 run, estimate the E-mail Download response time. 2.577218 seconds

6. For the G.723.1 run, estimate the E-mail Download response time. 2.550434 seconds

Close the E-mail tree. Expand Voice and select Traffic Received (bytes/sec). Change the view from As Is to time_average and select the Show button. Zoom in on the last two-thirds of the graph to eliminate start-up oscillation time and to get better granularity of the results. Copy and label this graph to your lab report. Then use this graph to answer the following questions:

7. For the G.711 run, estimate the Traffic Received in bytes/sec. 92,835.555556 bytes/sec

8. For the G.729 run, estimate the Traffic Received in bytes/sec. 11,628.611111 bytes/sec

9. For the G.723.1 run, estimate the Traffic Received in bytes/sec....