Question
F1 traffic intensity set to F3 traffic intensity set to S1 Buffer capacity Ping packet loss % reported(p.out) Ping avg RTT reported (p.out file) (ms)
| F1 traffic intensity set to | F3 traffic intensity set to | S1 Buffer capacity | Ping packet loss % reported(p.out) | Ping avg RTT reported (p.out file) (ms) | Observed throughput At h2 (Bandwit h in i1.out file) | Observed throughput at h4 ( Bandwidt h in i3.out file | Note |
Config 0 | 0 | 0 | 1000 | 0 | Min30.282 AVG32.037 max34.019 mdev0.622 | 67.4 Kbits/s | 75.4Kbits/s | To establish the baseline number for ping (at zero background traffic) |
Config 1 | 100 Mbps | 100 | 1000 | 1 | min30.168 AVG31.024 Max39.408 Mdev1.432 | 99.8 Mbits/sec | 99.8 Mbits/sec | Light traffic |
Config 2 | 200 | 200 | 1000 | 1 | min30.225 AVG36.017 max66.982 Mdev9.977 | 172 Mbits/sec | 185 Mbits/sec | Medium traffic |
Config 3 | 300 | 300 | 1000 | 7 | min30.224 AVG44.490 max113.040 Mdev13.741 | 260 Mbits/sec | 271 mbits/sec | Heavy traffic |
Config 4 | 200 | 200 | 5000 | 7 | min30.224 AVG44.490 max113.040 MDev13.741 | 180 Mbits/Sec | 188 Mbits/sec | Medium traffic |
Config 5 | 300 | 300 | 5000 | 11 | min30.157 AVG125.575 Max242.372 MDev79.360 | 242 Mbits/sec | 252 Mbits/sec | Heavy Traffic |
Q1. From what you learned in the lectures, do you expect a relationship between the ping loss and the traffic intensity for a given buffer capacity (for example, decrease or increase with traffic intensity)? Answer yes or no, and justify your answer. Now analyze the reported data for the various configurations. Does the data match the relationship you expected? Same question for the relationship between the ping avg RTT and the traffic intensity.
Q2. From what you learned in the lectures, do you expect a relationship between the ping loss and the buffer capacity (for example, decrease or increase with buffer capacity)? Answer yes or no, and justify your answer. Now analyze the reported data for the various configurations. Does the data match the relationship you expected? Same question for the relationship between the ping avg RTT and the buffer capacity.
Q3. Is the observed throughput at the server h2 the same as the F1 traffic intensity? If the answer is no, explain why.
Q4. Is the observed throughput at the server h4 the same as the F3 traffic intensity? If the answer is no, explain why.
Q5. Is there a relationship between the RTT/loss % and the throughputs observed at the servers? If so, what is that relationship? Can you explain?
Q6. Regarding the individual ping RTT values, do you see any significant differences between the first pings and the last pings within the same ping session? If your answer is yes, can you explain why?
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