Bob Lantz
0b084dd51a
instantiate a mininet Network based on its topology. Also minor cleanup of nox.py and GridNet class in mininet.py.
51 lines
1.6 KiB
Python
Executable File
51 lines
1.6 KiB
Python
Executable File
#!/usr/bin/python
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"A FatTree network, using Brandon Heller's ripcord system."
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from ripcord.topo import StructuredNode, StructuredNodeSpec, FatTreeTopo, VL2T
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opo
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from mininet import Controller, Network, Host, pingTest
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class NoxController( Controller ):
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"A customized Controller that uses NOX."
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def __init__( self, name, **kwargs ):
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Controller.__init__( self, name,
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controller='nox_core', cargs='-i ptcp pyswitch',
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cdir='/usr/local/bin', **kwargs)
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class FatTree( Network ):
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"A customized Network that uses ripcord's FatTree."
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def __init__( self, **kwargs ):
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Network.__init__( self, depth, **kwargs )
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def makeNetwork( self, controller ):
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ft = FatTreeTopo( depth )
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graph = ft.g
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switches = []
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hosts = []
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hostnames = nameGen( 'h0' )
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switchnames = nameGen( 's0' )
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graphToMini = {}
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miniToGraph = {}
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# Create nodes
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for graphNode in graph.nodes():
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print "found node", graphNode
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isLeaf = len( graph.neighbors( graphNode ) ) = 1
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if isLeaf:
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mininetNode = Node( hostnames.next() )
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hosts += [ mininetNode ]
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else:
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mininetNode = self.Switch( switchnames.next() )
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switches += [ mininetNode ]
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miniToGraph[ mininetNode ] = graphNode
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graphToMini[ graphNode ] = mininetNode
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# Create Links
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for switch in switches:
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for neighbor in miniToGraph[ switches ]:
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makeLink( switch, graphToMini[ neighbor ] )
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if __name__ == '__main__':
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init()
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network = FatTree( depth=4, kernel=True, Controller=NoxController)
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network.run( pingTest )
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