lantz
f0c726a42f
This helps with virtualenv although it can open up another security hole if you end up using an unexpected python interpreter. Overall it seems to make sense to err on the side of usability but it's good to be aware of security. However, for the remaining utility scripts that require python 2, we explicitly note this with #!/usr/bin/python2.
45 lines
1.3 KiB
Python
Executable File
45 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python
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"Create a 64-node tree network, and test connectivity using ping."
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from mininet.log import setLogLevel, info
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from mininet.node import UserSwitch, OVSKernelSwitch, Host
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from mininet.topolib import TreeNet
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class HostV4( Host ):
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"Try to IPv6 and its awful neighbor discovery"
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def __init__( self, *args, **kwargs ):
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super( HostV4, self ).__init__( *args, **kwargs )
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cfgs = [ 'all.disable_ipv6=1', 'default.disable_ipv6=1',
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'default.autoconf=0', 'lo.autoconf=0' ]
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for cfg in cfgs:
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self.cmd( 'sysctl -w net.ipv6.conf.' + cfg )
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def treePing64():
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"Run ping test on 64-node tree networks."
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results = {}
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switches = { 'reference user': UserSwitch,
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'Open vSwitch kernel': OVSKernelSwitch }
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for name in switches:
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info( "*** Testing", name, "datapath\n" )
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switch = switches[ name ]
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network = TreeNet( depth=2, fanout=8, switch=switch,
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waitConnected=True )
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result = network.run( network.pingAll )
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results[ name ] = result
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info( "\n*** Tree network ping results:\n" )
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for name in switches:
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info( "%s: %d%% packet loss\n" % ( name, results[ name ] ) )
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info( '\n' )
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if __name__ == '__main__':
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setLogLevel( 'info' )
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treePing64()
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