Brandon Heller
51270ce4a2
Now, to reference mininet files, use 'import mininet.mininet'. PYTHONPATH mods are no longer required for installation.
48 lines
1.7 KiB
Python
Executable File
48 lines
1.7 KiB
Python
Executable File
#!/usr/bin/python
|
|
|
|
"""
|
|
Build a simple network from scratch, using mininet primitives.
|
|
This is more complicated than using the higher-level classes,
|
|
but it exposes the configuration details and allows customization.
|
|
|
|
This version uses the user datapath.
|
|
"""
|
|
|
|
from mininet.mininet import init, Node, createLink
|
|
|
|
def scratchNetUser( cname='controller', cargs='ptcp:'):
|
|
# Create Network
|
|
# It's not strictly necessary for the controller and switches
|
|
# to be in separate namespaces. For performance, they probably
|
|
# should be in the root namespace. However, it's interesting to
|
|
# see how they could work even if they are in separate namespaces.
|
|
controller = Node( 'c0' )
|
|
switch = Node( 's0')
|
|
h0 = Node( 'h0' )
|
|
h1 = Node( 'h1' )
|
|
createLink( controller, switch )
|
|
createLink( h0, switch )
|
|
createLink( h1, switch )
|
|
# Configure control network
|
|
controller.setIP( controller.intfs[ 0 ], '10.0.123.1', '/24' )
|
|
switch.setIP( switch.intfs[ 0 ], '10.0.123.2', '/24' )
|
|
# Configure hosts
|
|
h0.setIP( h0.intfs[ 0 ], '192.168.123.1', '/24' )
|
|
h1.setIP( h1.intfs[ 0 ], '192.168.123.2', '/24' )
|
|
# Start network using user datapath
|
|
controller.cmdPrint( cname + ' ' + cargs + '&' )
|
|
switch.cmdPrint( 'ifconfig lo 127.0.0.1' )
|
|
switch.cmdPrint( 'ofdatapath -i ' + ','.join( switch.intfs[ 1: ])
|
|
+ ' ptcp: &' )
|
|
switch.cmdPrint( 'ofprotocol tcp:' + controller.IP() + ' tcp:localhost &' )
|
|
# Run test
|
|
h0.cmdPrint( 'ping -c1 ' + h1.IP() )
|
|
# Stop network
|
|
controller.cmdPrint( 'kill %' + cname)
|
|
switch.cmdPrint( 'kill %ofdatapath' )
|
|
switch.cmdPrint( 'kill %ofprotocol' )
|
|
|
|
if __name__ == '__main__':
|
|
init()
|
|
scratchNetUser()
|