lantz
b7c412073a
Ubuntu 20.04 fixes:
- fixes sshd test
- speeds up examples/{treeping64,tree1024}.py
- debugging hacks/output for testLinkChange
- removes cfs from examples/popen.py
- improves nat in nodelib (netplan fixes?)
- makes some tests executable
- waits for switches to connect in tests to
avoid race conditions
-- adds mn -w option and wait CLI command
Changes:
- REMOVES default "-v" argument for Controller()
and adds verbose(=False) option; avoiding logging
makes it faster
- CHANGES waitConnected to wait for 5 seconds
as documented; we may wish to implement an argument
to -w to set this timeout
Issues?
- There may still be an issue with the ovs-netplan-clean
service causing the boot to hang ;-(
37 lines
1.0 KiB
Python
Executable File
37 lines
1.0 KiB
Python
Executable File
#!/usr/bin/python
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"Monitor multiple hosts using popen()/pmonitor()"
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from mininet.net import Mininet
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from mininet.topo import SingleSwitchTopo
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from mininet.util import pmonitor
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from mininet.log import setLogLevel, info
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from time import time
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from signal import SIGINT
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def pmonitorTest( N=3, seconds=10 ):
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"Run pings and monitor multiple hosts using pmonitor"
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topo = SingleSwitchTopo( N )
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net = Mininet( topo, waitConnected=True )
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net.start()
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hosts = net.hosts
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info( "Starting test...\n" )
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server = hosts[ 0 ]
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popens = {}
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for h in hosts:
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popens[ h ] = h.popen('ping', server.IP() )
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info( "Monitoring output for", seconds, "seconds\n" )
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endTime = time() + seconds
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for h, line in pmonitor( popens, timeoutms=500 ):
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if h:
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info( '<%s>: %s' % ( h.name, line ) )
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if time() >= endTime:
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for p in popens.values():
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p.send_signal( SIGINT )
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net.stop()
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if __name__ == '__main__':
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setLogLevel( 'info' )
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pmonitorTest()
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