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https://github.com/opennetworkinglab/onos.git
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56 lines
1.4 KiB
Python
Executable File
56 lines
1.4 KiB
Python
Executable File
#!/usr/bin/env python
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from mininet.topo import Topo
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from mininet.cli import CLI
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from mininet.net import Mininet
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from mininet.node import RemoteController, OVSKernelSwitch
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from mininet.log import setLogLevel
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class TowerTopo( Topo ):
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"""Create a tower topology"""
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def build( self, k=4, h=6 ):
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spines = []
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leaves = []
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hosts = []
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# Create the two spine switches
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spines.append(self.addSwitch('s1'))
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spines.append(self.addSwitch('s2'))
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# Create two links between the spine switches
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self.addLink(spines[0], spines[1])
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#TODO add second link between spines when multi-link topos are supported
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#self.addLink(spines[0], spines[1])
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# Now create the leaf switches, their hosts and connect them together
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i = 1
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c = 0
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while i <= k:
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leaves.append(self.addSwitch('s1%d' % i))
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for spine in spines:
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self.addLink(leaves[i-1], spine)
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j = 1
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while j <= h:
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hosts.append(self.addHost('h%d%d' % (i, j)))
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self.addLink(hosts[c], leaves[i-1])
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j+=1
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c+=1
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i+=1
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topos = { 'tower': TowerTopo }
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def run():
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topo = TowerTopo()
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net = Mininet( topo=topo, controller=RemoteController, autoSetMacs=True )
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net.start()
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CLI( net )
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net.stop()
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if __name__ == '__main__':
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setLogLevel( 'info' )
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run()
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