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.
50 lines
1.3 KiB
Python
Executable File
50 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python
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'''
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example of using various TCIntf options.
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reconfigures a single interface using intf.config()
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to use different traffic control commands to test
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bandwidth, loss, and delay
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'''
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from mininet.net import Mininet
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from mininet.log import setLogLevel, info
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from mininet.link import TCLink
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def intfOptions():
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"run various traffic control commands on a single interface"
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net = Mininet( autoStaticArp=True, waitConnected=True )
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net.addController( 'c0' )
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h1 = net.addHost( 'h1' )
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h2 = net.addHost( 'h2' )
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s1 = net.addSwitch( 's1' )
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link1 = net.addLink( h1, s1, cls=TCLink )
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net.addLink( h2, s1 )
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net.start()
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# flush out latency from reactive forwarding delay
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net.pingAll()
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info( '\n*** Configuring one intf with bandwidth of 10 Mb\n' )
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link1.intf1.config( bw=10 )
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info( '\n*** Running iperf to test\n' )
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net.iperf( seconds=10 )
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info( '\n*** Configuring one intf with loss of 50%\n' )
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link1.intf1.config( loss=50 )
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info( '\n' )
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net.iperf( ( h1, h2 ), l4Type='UDP' )
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info( '\n*** Configuring one intf with delay of 15ms\n' )
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link1.intf1.config( delay='15ms' )
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info( '\n*** Run a ping to confirm delay\n' )
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net.pingPairFull()
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info( '\n*** Done testing\n' )
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net.stop()
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if __name__ == '__main__':
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setLogLevel( 'info' )
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intfOptions()
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