Cody Burkard
77 lines
2.1 KiB
Python
Executable File
77 lines
2.1 KiB
Python
Executable File
#!/usr/bin/python
|
|
|
|
"""
|
|
Create a network with 5 hosts, numbered 1-4 and 9.
|
|
Validate that the port numbers match to the interface name,
|
|
and that the ovs ports match the mininet ports.
|
|
"""
|
|
|
|
from mininet.net import Mininet
|
|
from mininet.node import Controller
|
|
from mininet.log import setLogLevel, info, warn
|
|
from mininet.node import Node
|
|
|
|
def validatePort( switch, intf ):
|
|
"Validate intf's OF port number"
|
|
ofport = int( switch.cmd( 'ovs-vsctl get Interface', intf,
|
|
'ofport' ) )
|
|
if ofport != switch.ports[ intf ]:
|
|
warn( 'WARNING: ofport for', intf, 'is actually', ofport, '\n' )
|
|
return 0
|
|
else:
|
|
return 1
|
|
|
|
def net():
|
|
|
|
"Create a network with 5 hosts."
|
|
|
|
net = Mininet( controller=Controller )
|
|
|
|
info( '*** Adding controller\n' )
|
|
net.addController( 'c0' )
|
|
|
|
info( '*** Adding hosts\n' )
|
|
h1 = net.addHost( 'h1', ip='10.0.0.1' )
|
|
h2 = net.addHost( 'h2', ip='10.0.0.2' )
|
|
h3 = net.addHost( 'h3', ip='10.0.0.3' )
|
|
h4 = net.addHost( 'h4', ip='10.0.0.4' )
|
|
h5 = net.addHost( 'h5', ip='10.0.0.5' )
|
|
|
|
info( '*** Adding switch\n' )
|
|
s1 = net.addSwitch( 's1' )
|
|
|
|
info( '*** Creating links\n' )
|
|
# host 1-4 connect to ports 1-4 on the switch
|
|
net.addLink( h1, s1 )
|
|
net.addLink( h2, s1 )
|
|
net.addLink( h3, s1 )
|
|
net.addLink( h4, s1 )
|
|
net.addLink( h5, s1, port1 = 1, port2 = 9 ) # specify a different port to connect host 5 to on the switch.
|
|
|
|
root = Node( 'root', inNamespace=False )
|
|
info( '*** Starting network\n' )
|
|
net.start()
|
|
|
|
# print the interfaces and their port numbers
|
|
info( '\n*** printing and validating the ports running on each interface\n' )
|
|
for intfs in s1.intfList():
|
|
if not intfs.name == "lo":
|
|
info( intfs, ': ', s1.ports[intfs],
|
|
'\n' )
|
|
info ( 'Validating that', intfs, 'is actually on port', s1.ports[intfs], '... ' )
|
|
if validatePort( s1, intfs ):
|
|
info( 'Validated.\n' )
|
|
print '\n'
|
|
|
|
# test the network with pingall
|
|
net.pingAll()
|
|
print '\n'
|
|
|
|
info( '*** Stopping network' )
|
|
net.stop()
|
|
|
|
if __name__ == '__main__':
|
|
setLogLevel( 'info' )
|
|
net()
|
|
|