Bob Lantz
696a619d0e
Added commentary on control network to mininet.py. Hopefully fixed linearbandwidth.py for real.
52 lines
1.4 KiB
Python
Executable File
52 lines
1.4 KiB
Python
Executable File
#!/usr/bin/python
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"""
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Test bandwidth (using iperf) on linear networks of varying size,
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using both kernel and user datapaths.
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Each network looks like:
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h0 <-> s0 <-> s1 .. sN <-> h1
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Note: by default, the reference controller only supports 16
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switches, so this test WILL NOT WORK unless you have recompiled
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your controller to support a 100 switches (or more.)
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"""
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from mininet import init, LinearNet, iperfTest
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def linearBandwidthTest():
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datapaths = [ 'kernel', 'user' ]
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switchCounts = [ 1, 20, 40, 60, 80, 100 ]
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results = {}
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for datapath in datapaths:
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k = datapath == 'kernel'
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results[ datapath ] = []
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for switchCount in switchCounts:
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print "*** Creating linear network of size", switchCount
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network = LinearNet( switchCount, kernel=k)
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bandwidth = network.run( iperfTest )
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results[ datapath ] += [ ( switchCount, bandwidth ) ]
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for datapath in datapaths:
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print
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print "*** Linear network results for", datapath, "datapath:"
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print
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result = results[ datapath ]
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print "SwitchCount\tiperf Results"
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for switchCount, bandwidth in result:
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print switchCount, '\t\t',
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print bandwidth[ 0 ], 'server, ', bandwidth[ 1 ], 'client'
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print
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print
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if __name__ == '__main__':
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init()
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print "*** Running linearBandwidthTest"
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linearBandwidthTest()
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exit( 1 )
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