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Source 1 10 Mbps Ethernet Router Dest 1.5 Mbps T1 Link 100 Mbps - PDF document

Source 1 10 Mbps Ethernet Router Dest 1.5 Mbps T1 Link 100 Mbps FDDI Source 2 Source 1 Router Dest 1 Router Source 2 Router Dest 2 Source 3 Power = Throughput Delay Optimal Load Load Flow 1 Flow 2 Service Flow 3 Flow 4


  1. Source 1 10 Mbps Ethernet Router Dest 1.5 Mbps T1 Link 100 Mbps FDDI Source 2

  2. Source 1 Router Dest 1 Router Source 2 Router Dest 2 Source 3 Power = Throughput Delay Optimal Load Load

  3. Flow 1 Flow 2 Service Flow 3 Flow 4

  4. Flow 1 Output Flow 2 F=10 F=8 F=5 Flow 1 Flow 2 (arriving) (being sent) Output F=10 F=2

  5. Source Destination . . .

  6. 70 60 50 40 KB 30 20 10 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 Time in seconds

  7. Source Destination . . .

  8. 70 60 50 40 KB 30 20 10 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Time in seconds

  9. segment 1 segment 2 segment 3 ack 1 segment 4 ack 2 segment 5 ack 2 segment 6 ack 2 ack 2 retransmit segment 3 ack 6 70 60 50 40 KB 30 20 10 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Time in seconds

  10. Queue Length Current Time Time Previous Current Cycle Cycle Averaging Interval

  11. MaxThreshold MinThreshold AvgLength

  12. 110 220 330 440 550 660 770 880 990 70 60 50 40 KB 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 Time in seconds 110 220 330 440 550 660 770 880 990 1100 1000 900 800 Sending KB/S 700 600 500 400 300 200 100 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 Time in seconds 10 Queue size in router 5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 Time in seconds

  13. 110 220 330 440 550 660 770 880 990 70 60 50 40 KB 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 Time in seconds 110 220 330 440 550 660 770 880 990 240 200 160 CAM KB/S 120 80 40 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 Time in seconds

  14. Real 0 1 2 3 4 5 6 Time (ms) Flow 1 1 2 3 4 5 6 Flow 2 2 4 6 Output 1 2 2 3 4 4 5 6 6 Flow 1 7 8 9 10 Flow 2 6 8 10 12 10 12 10 inserted into queue, 10 Queue 8 9 9 10 12 dropped 6 8 8 8 8 9 Output 7 6 8 8 9 10 10

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