SDN第二次上机作业

1、安装floodlight

-参考链接：http://www.sdnlab.com/19189.html
-截图：

2、生成拓扑并连接控制器floodlight，利用控制器floodlight查看图形拓扑

-截图：
1.
2.
代码：
#!/usr/bin/python

from mininet.topo import Topo
from mininet.net import Mininet
from mininet.node import RemoteController,CPULimitedHost
from mininet.link import TCLink
from mininet.util import dumpNodeConnections

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

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

Initialize topology

Topo.init( self )

add hosts

host1 = self.addHost('h1')
host2 = self.addHost('h2')
host3 = self.addHost('h3')

add switch

switch1 = self.addSwitch('s1')
switch2 = self.addSwitch('s2')
switch3 = self.addSwitch('s3')
switch4 = self.addSwitch('s4')

add link

self.addLink(host1,switch2,1,1)
self.addLink(host2,switch3,1,1)
self.addLink(host3,switch4,1,1)
self.addLink(switch1,switch2,1,2)
self.addLink(switch1,switch3,2,2)
self.addLink(switch1,switch4,3,2)
topos = { 'mytopo': ( lambda: MyTopo() ) }