Bob Lantz
42ba5d92c3
(It also adds a route from the root namespace to the data network via the first OpenFlow switch, so when you ssh in you go through OpenFlow!) Modified Network() to optionally decouple starting the network, running tests, and stopping the network. This allows multiple tests to be run (or additional modifications to be made to the network before actually starting the switches and controller.) Still tweaking xterms - it sort of works but the screen sessions are not cleaned up, which leads to nasty garbage.
43 lines
1.1 KiB
Python
Executable File
43 lines
1.1 KiB
Python
Executable File
#!/usr/bin/python
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"Create a network and run an xterm (connected via screen) on each host."
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import os
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from subprocess import Popen
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from mininet import init, TreeNet, Cli, quietRun
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def makeXterm( node, title ):
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"Run screen on a node, and hook up an xterm."
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node.cmdPrint( 'screen -dmS ' + node.name )
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title += ': ' + node.name
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if not node.inNamespace:
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title += ' (root ns)'
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cmd = [ 'xterm', '-title', title ]
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cmd += [ '-e', 'screen', '-D', '-RR', '-S', node.name ]
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return Popen( cmd )
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def makeXterms( nodes, title ):
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terms = []
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for node in nodes:
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if not node.execed:
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terms += [ makeXterm( node, title ) ]
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return terms
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def xterms( controllers, switches, hosts ):
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terms = []
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terms += makeXterms( controllers, 'controller' )
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terms += makeXterms( switches, 'switch' )
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terms += makeXterms( hosts, 'host' )
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# Wait for completion
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for term in terms:
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os.waitpid( term.pid, 0 )
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def treeXterms():
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print "Running xterms on", os.environ[ 'DISPLAY' ]
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network = TreeNet( depth=2, fanout=2, kernel=True )
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network.run( xterms )
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if __name__ == '__main__':
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init()
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treeXterms()
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