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6. Analyse the role intimation time from the messages captured by four ports and write down the result.
7. Clean the configuration of controllers and IxNetwork.
8. Repeat test step 1-7 Repeat the test with same switches for three times.
89. Restart the test with another number of switches.
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Three nodes
Devices First Second Third Average(S) 100s 0.682 0.731 0.861 0.76 200s 1.408 1.461 1.510 1.46 300s 1.944 2.148 1.938 2.01 400s 2.353 3.026 3.039 2.81 500s 3.578 3.263 3.576 3.47 600s 4.237 4.220 4.243 4.23 
As shown in the histogram, the result is linear with the number of switches. When the number of switches after more than 600, the sessions will flapsessions is not support good enough, session flap occurs.