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Moved link creation into Node.addIntf() and fixed util:CreateLink().

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Also tweaked cmd/cmdPrint to make them more beautiful and functional,
and a few other minor changes, such as using a new idiom for verbose.

These changes support reinstating the examples.
This commit is contained in:
Bob Lantz
2010-03-03 13:52:50 -08:00
parent 04fa18dc61
commit efc9a01cf1
4 changed files with 138 additions and 128 deletions
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examples/scratchnet.py
+41 -27
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@@ -6,35 +6,49 @@ This is more complicated than using the higher-level classes,
but it exposes the configuration details and allows customization.
"""
from mininet.mininet import init, Node, createLink
import logging
from mininet.net import init
from mininet.node import Node
from mininet.util import createLink
from mininet.log import info
# print out info() messages, including cmdPrint
logging.LOGLEVELDEFAULT = logging.INFO
def scratchNet( cname='controller', cargs='ptcp:'):
# Create Network
controller = Node( 'c0', inNamespace=False )
switch = Node( 's0', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
createLink( h0, switch )
createLink( h1, switch )
# 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 kernel datapath
controller.cmdPrint( cname + ' ' + cargs + '&' )
switch.cmdPrint( 'dpctl deldp nl:0' )
switch.cmdPrint( 'dpctl adddp nl:0' )
for intf in switch.intfs:
# Create Network
print "*** creating Nodes"
controller = Node( 'c0', inNamespace=False )
switch = Node( 's0', inNamespace=False )
h0 = Node( 'h0' )
h1 = Node( 'h1' )
print "*** creating links"
createLink( node1=h0, port1=0, node2=switch, port2=0 )
createLink( node1=h1, port1=0, node2=switch, port2=1 )
# Configure hosts
print "*** configuring hosts"
h0.setIP( h0.intfs[ 0 ], '192.168.123.1', '/24' )
h1.setIP( h1.intfs[ 0 ], '192.168.123.2', '/24' )
print h0
print h1
# Start network using kernel datapath
controller.cmdPrint( cname + ' ' + cargs + '&' )
switch.cmdPrint( 'dpctl deldp nl:0' )
switch.cmdPrint( 'dpctl adddp nl:0' )
for intf in switch.intfs.values():
switch.cmdPrint( 'dpctl addif nl:0 ' + intf )
switch.cmdPrint( 'ofprotocol nl:0 tcp:localhost &')
# Run test
h0.cmdPrint( 'ping -c1 ' + h1.IP() )
# Stop network
controller.cmdPrint( 'kill %' + cname)
switch.cmdPrint( 'dpctl deldp nl:0' )
switch.cmdPrint( 'kill %ofprotocol' )
switch.stop()
controller.stop()
switch.cmdPrint( 'ofprotocol nl:0 tcp:localhost &')
# Run test
print h0.cmd( 'ping -c1 ' + h1.IP() )
# Stop network
controller.cmdPrint( 'kill %' + cname)
switch.cmdPrint( 'dpctl deldp nl:0' )
switch.cmdPrint( 'kill %ofprotocol' )
switch.stop()
controller.stop()
if __name__ == '__main__':
init()
scratchNet()
info( '*** Scratch network demo\n' )
init()
scratchNet()