SDN第二次上机作业

SDN第二次上机作业

touch 2-2.py              //自己命名
sudo gedit 2-2.py         //进入编辑器

from mininet.topo import Topo

class MyTopo( Topo ):
"Simple topology example."

def __init__( self ):
"Create custom topo."

# Initialize topology
Topo.__init__( self )

# Add hosts and switches
host1 = self.addHost( 'h1' )
host2 = self.addHost( 'h2' )
host3 = self.addHost( 'h3' )
switch1 = self.addSwitch( 's1' )
switch2 = self.addSwitch( 's2' )
switch3 = self.addSwitch( 's3' )
switch4 = self.addSwitch( 's4' )

# Add links
self.addLink( host1, switch2 )
self.addLink( host2, switch3 )
self.addLink( host3, switch4 )
self.addLink( switch1, switch2 )
self.addLink( switch1, switch3 )
self.addLink( switch1, switch4 )

topos = { 'mytopo': ( lambda: MyTopo() ) }

sudo mn --custom ~/mininet/mininet/2-2.py --topo mytopo --controller=remote,ip=10.0.2.15,port=6633 --switch ovsk,protocols=OpenFlow10          //运行python脚本